Controls Solid-State Switching Devices

Siemens AG 27 Controls Solid-State Switching Devices /2 Introduction Solid-State Switching Devices /3 General data Solid-State Relays /6 General data /7 3RF21 solid-state relays, single-phase, 22.5 mm /13 3RF2 solid-state relays, single-phase, 5 mm /17 3RF22 solid-state relays, 3-phase, 5 mm Solid-State Contactors /22 General data /23 3RF23 solid-state contactors, single-phase /31 3RF2 solid-state contactors, 3-phase 3RF29 Function Modules / General data /2 Converters /3 Load monitoring / Heating current monitoring /5 Power control regulators /6 Power controllers /7 Project planning aids Siemens LV 1 T 27

Siemens AG 27 Controls Solid-State Switching Devices Introduction Overview 3RF21 3RF2 3RF22 3RF23 3RF2 3RF29 SIRIUS solid-state switching devices Solid-state relays Solid-state relays 22.5 mm, Solid-state relays 5 mm Solid-state contactors Solid-state contactors Function modules Converters Widths of 22.5 mm and 5 mm Compact and space-saving design "Zero-point switching" version Mounting onto existing heat sinks Complete units comprising a solid-state relay and an optimized heat sink, "ready to use" Compact and space-saving design Versions for resistive loads "zero-point switching" and inductive loads "instantaneous switching" Special versions "low noise" and "short-circuit resistant" For extending the functionality of the 3RF21 solid-state relays and the 3RF23 solid-state contactors for many different applications: For converting an analog input signal into an on/off ratio; can also be used on 3RF22 and 3RF2 3-phase switchgear Order No. 3RF21, 3RF2 3RF22 3RF23 3RF2 Page /7 /13 /17 /23 /31 3RF29 -EA18 /2 Load monitoring For load monitoring of one or more loads (partial loads) 3RF29 2-FA8, /3 3RF29.-GA.. Heating current monitoring For load monitoring of one or more loads (partial loads); 3RF29..-JA.. / remote teach Power control regulators For supplying the current by means of a solid-state switching device 3RF29..-KA. /5 depending on a setpoint value. There is a choice of full-wave control and generalized phase control. Power controllers For supplying the current by means of a solid-state switching device depending on a setpoint value. Closed-loop control: Full-wave control or generalized phase control 3RF29.-HA.. /6 /2 Siemens LV 1 T 27

Siemens AG 27 Solid-State Switching Devices General data Overview SIRIUS solid-state switching devices Solid-state relays Solid-state contactors Function modules SIRIUS for almost unending activity Conventional electromechanical switching devices are often overtaxed by the rise in the number of switching operations. A high switching frequency results in frequent failure and short replacement cycles. However, this does not have to be the case, because with the latest generation of our SIRIUS solid-state switching devices we provide you with solid-state relays and contactors with a particularly long endurance - for almost unending activity even under the toughest conditions and under high mechanical load, but also in noise-sensitive areas. Proved time and again in service SIRIUS solid-state switching devices have become firmly established in industrial applications. They are used above all in applications where loads are switched frequently mainly with resistive load controllers, with the control of electrical heat or the control of valves and motors in conveyor systems. In addition to its use in areas with high switching frequencies, its silent switching means that SIRIUS is also ideally suited for use in noise-sensitive areas, such as offices or hospitals. The most reliable solution for any application Compared to mechanical switchgear, our SIRIUS solid-state switching devices stand out due to their considerably longer service life. Thanks to the high product quality, their switching is extremely precise, reliable and above all insusceptible to faults. With its variable connection methods and a wide spread of control voltages, the SIRIUS family is universally applicable. Depending on the individual requirements of the application, our modular switching devices can also be quite easily expanded by the addition of standardized function modules. Always on the sunny side with SIRIUS Because SIRIUS offers even more: The space-saving and compact side-by-side mounting ensures reliable operation up to an ambient temperature of +6 C. Thanks to fast configuration and the ease of mounting and start-up, you save not only time but also expenses. Siemens LV 1 T 27 /3

Solid-State Switching Devices Siemens AG 27 General data Type Solid-state relays Solid-state contactors Function modules 1-phase 3-phase 1-phase 3-phase Converters Load monitoring Heating 22.5 mm 5 mm 5 mm Basic Extended current monitoring Power control regulators Usage Simple use of -- -- -- -- -- -- existing solid-state relays Complete unit -- -- -- -- -- -- "Ready to use" Space-saving -- -- -- -- -- Can be extended -- -- -- -- -- -- -- with modular function modules Frequent switching -- -- -- -- -- -- and monitoring of loads and solid-state relays/solid-state contactors Monitoring of up to -- -- -- -- -- -- -- -- 6 partial loads Monitoring of more than 6 partial loads -- -- -- -- -- -- -- -- -- -- Control of the heating -- -- -- -- -- -- -- -- power through an analog input Power control -- -- -- -- -- -- -- -- -- -- Startup Easy setting of -- -- -- -- -- -- -- setpoint values with "Teach" button "Remote Teach" -- -- -- -- -- -- -- -- -- -- input for setting setpoints Mounting Mounting onto -- -- -- -- -- -- -- -- -- mounting rails or mounting plates Can be snapped -- -- -- -- -- directly onto a solid-state relay or contactor For use with -- -- -- -- -- -- -- -- "Coolplate" heat sink Cable routing Connection of load -- -- circuit as for controlgear Connection of load circuit from above -- -- -- -- -- -- -- -- -- -- Power controllers Function is available Function is possible / Siemens LV 1 T 27

Siemens AG 27 Solid-State Switching Devices General data Maximum load integral Design One of the purposes of specifying the maximum load integral There is no typical design of a load feeder with solid-state relays (I²t) is to determine the rating of the short-circuit protection. Only or solid-state contactors; instead, the great variety of connection a large power semiconductor with a correspondingly high I²t methods and control voltages offers universal application value can be given appropriate protection against destruction opportunities. SIRIUS solid-state relays and solid-state from a short-circuit by means of a protective device matched to contactors can be installed in fuseless or fused feeders, as the application. However, the devices are also characterized by required. There are special versions with which it is even the optimum matching of the thyristors (I²t value) with the rated possible to achieve short-circuit strength in a fuseless design. currents. The rated currents specified on the devices according to EN 697--3 were confirmed by extensive testing. Function You can find more information on the Internet at: Connection methods http://www.siemens.de/halbleiterschaltgeraete All SIRIUS solid-state switching devices are characterized by the great variance of connection methods. You can choose Integration between the following connection methods: Notes on integration in the load feeders Screw connection system The SIRIUS solid-state switching devices are very easy to The screw connection system is the standard among industrial integrate into the load feeders thanks to their industrial controls. Open terminals and a plus-minus screw are just two connection method and design. features of this technology. Two conductors of up to 6 mm² can be connected in just one terminal. As a result, loads of up to 5 A Particular attention must however be paid to the circumstances can be connected. of the installation and ambient conditions, as the performance of the solid-state switching devices is largely dependent on these. Spring-loaded terminal connection system Depending on the version, certain restrictions must be observed. This innovative technology manages without any screw Detailed information, for example in relation to solid-state contactors about the minimum spacing and to solid-state relays connection. This means that very high vibration resistance is achieved. Two conductors of up to 2.5 mm² can be connected about the choice of heat sink, is given in the technical specifications and the product data sheets. to each terminal. As a result, loads of up to 2 A can be dealt with. Despite the rugged power semiconductors that are used, Ring terminal lug connection solid-state switching devices respond more sensitively to shortcircuits in the load feeder. Consequently, special precautions The ring terminal lug connection is equipped with an M5 screw. have to be taken against destruction, depending on the type of Ring terminal lugs of up to 25 mm² can be connected. In this way design. it is possible to connect even high powers with current strengths of up to 9 A safely. Finger-safety is provided in this case too with Siemens generally recommends using SITOR semiconductor a special cover. protection fuses. These fuses also provide protection against destruction in the event of a short-circuit even when the solidstate contactors and solid-state relays are fully utilized. Switching functions In order to guarantee an optimized control method for different Alternatively, if there is lower loading, protection can also be loads, the functionality of our solid-state switching devices can provided by standard fuses or miniature circuit breakers. This be adapted accordingly. protection is achieved by overdimensioning the solid-state switching devices accordingly. The technical specifications and The "zero-point switching" method has proved to be ideal for the product data sheets contain details both about the solidstate fuse protection itself and about use of the devices with resistive loads, i.e. where the power semiconductor is activated at zero voltage. conventional protective equipment. For inductive loads, on the other hand, for example in the case The SIRIUS solid-state switching devices are suitable for interference-free operation in industrial networks without further of valves, it is better to go with "instantaneous switching". By distributing the ON point over the entire sine curve of the measures. If they are used in public networks, it may be necessary for conducted interference to be reduced by means of mains voltage, disturbances are reduced to a minimum. Performance characteristics filters. This does not include the special solid-state contactors of type 3RF23..-.CA.. "Low Noise". These comply with the class B The performance of the solid-state switching devices is substantially determined by the type of power semiconductors used and used, and at currents of over 16 A, standard filters can be used limit values up to a rated current of 16 A. If other versions are the internal design. In the case of the SIRIUS solid-state contactors and solid-state relays, only thyristors are used in place of when it comes to selecting the filters are essentially the current in order to comply with the limit values. The decisive factors less powerful Triacs. loading and the other parameters (operational voltage, design Two of the most important features of thyristors are the blocking type, etc.) in the load feeder. voltage and the maximum load integral: Suitable filters can be ordered from EPCOS AG. Blocking voltage You can find more information on the Internet at: Thyristors with a high blocking voltage can also be operated http://www.epcos.com without difficulty in networks with high interference voltages. Separate protective measures, such as a protective circuit with a varistor, are not necessary in most cases. For example, thyristors with 8 V blocking voltage are fitted in the devices for operation in networks up to 23 V. Thyristors with up to 16 V are used for power systems with higher voltages. Siemens LV 1 T 27 /5

Solid-State Relays Siemens AG 27 General data Overview Function Solid-state relays 3-phase solid-state switching devices SIRIUS solid-state relays are suitable for surface mounting on Two-phase controlled version existing cooling surfaces. Mounting is quick and easy, involving just two screws. The special technology of the power semiconductor ensures there is excellent thermal contact with the heat sink. Depending on the nature of the heat sink, the capacity reaches up to 88 A on resistive loads. The solid-state relays are available in three different versions: 3RF21 single-phase solid-state relays with a width of 22.5 mm, 3RF2 single-phase solid-state relays with a width of 5 mm, 3RF22 three-phase solid-state relays with a width of 5 mm. Three-phase controlled version The 3RF21 and 3RF22 solid-state relays can be expanded with various function modules to adapt them to individual applications. Version for resistive loads, "zero-point switching" This standard version is often used for switching space heaters on and off. Configuration Version for inductive loads, "instantaneous switching" Selecting solid-state relays In this version the solid-state relay is specifically matched to inductive loads. Whether it is a matter of frequent actuation of the valves in a filling plant or starting and stopping small operating mechanisms in packet distribution systems, operation is carried out safely and noiselessly. Single-phase solid-state relay with a width of 22.5 mm With its compact design, which stays the same even at currents of up to 88 A, the 3RF21 solid-state relay is the ultimate in spacesaving construction, at a width of 22.5 mm. The logical connection method, with the power infeed from above and load connection from below, ensures tidy installation in the control cabinet. Single-phase solid-state relay with a width of 5 mm You can find more information on the Internet at: The solid-state relays with a width of 5 mm provide for connection of the power supply lead and the load from above. http://www.siemens.de/halbleiterschaltgeraete This makes it easy to replace existing solid-state relays in existing arrangements. The connection of the control cable also saves space in much the same way as the 22.5 mm design, as it is simply plugged on. Three-phase solid-state relay with a width of 5 mm With its compact design, which stays the same even at currents of up to 55 A, the 3RF22 solid-state relay is the ultimate in spacesaving construction, at a width of 5 mm. The logical connection method, with the power infeed from above and load connection from below, ensures tidy installation in the control cabinet. The three-phase solid-state relays are available with Two-phase control and Three-phase control. A three-phase control system is not required for many threephase current applications. Loads in a delta circuit or star circuit which have no connection to the neutral conductor can also be safely switched on and off using just two phases. Nevertheless, the 3-phase 3RF22 and 3RF2 solid-state switching devices permit all three phases to be connected to the switching device, in which case the middle phase is looped directly through the device. Compared to a three-phase controlled device, the lower power loss allows more compact installations. This version is used for three-phase current applications in which the system requires all phases to be switched on and off, or for loads in a star circuit with connection to the neutral conductor. When selecting solid-state relays, in addition to information about the network, the load and the ambient conditions it is also necessary to know details of the planned design. The solid-state relays can only conform to their specific technical specifications if they are mounted with appropriate care on an adequately dimensioned heat sink. The following procedure is recommended: Determine the rated current of the load and the mains voltage Select the relay design and choose a solid-state relay with higher rated current than the load Determine the thermal resistance of the proposed heat sink Check the correct relay size with the aid of the diagrams /6 Siemens LV 1 T 27

Siemens AG 27 Solid-State Relays 3RF21 solid-state relays, single-phase, 22.5 mm Overview 22.5 mm solid-state relays With its compact design, which stays the same even at currents of up to 88 A, the 3RF21 solid-state relay is the ultimate in spacesaving construction, at a width of 22.5 mm. The logical connection method, with the power infeed from above and connection of the load from below, ensures tidy installation in the control cabinet. Technical specifications Type 3RF21..-1... 3RF21..-2... 3RF21..-3... General data Ambient temperature During operation, derating from C C -25... +6 During storage C -55... +8 Installation altitude m... 1; derating from 1 Shock resistance g/ms 15/11 According to IEC 668-2-27 Vibration resistance g 2 According to IEC 668-2-6 Degree of protection IP2 Electromagnetic compatibility (EMC) Emitted interference - Conducted interference voltage Class A for industrial applications according to IEC 697--3 - Emitted, high-frequency interference Class A for industrial applications voltage according to IEC 697--3 Interference immunity - Electrostatic discharge kv Contact discharge ; air discharge 8; behavior criterion 2 according to IEC 61--2 (corresponds to degree of severity 3) - Induced RF fields MHz.15... 8; 1 dbµv; behavior criterion 1 according to IEC 61--6 - Burst according to IEC 61-- kv 2/5. khz; behavior criterion 1 - Surge according to IEC 61--5 kv Conductor - ground 2; conductor - conductor 1; behavior criterion 2 Connection type Screw connections Spring-loaded terminal Ring cable connections connections Connection, main contacts Conductor cross-section -Solid mm 2 2 x (1.5... 2.5) 1), 2 x (2.5... 6) 1) 2 x (.5... 2.5) -- - Finely stranded with end sleeve mm 2 2 x (1... 2.5) 1), 2 x (2.5... 6) 1), 2 x (.5... 1.5) -- 1 x 1 - Finely stranded without end sleeve mm 2-2 x (.5... 2.5) -- - Solid or stranded, AWG conductors 2 x (AWG 1... 1) 2 x (AWG 18... 1) -- Terminal screw M -- M5 Tightening torque NM 2... 2.5 -- 2.5... 2 lb. in 7... 1.3 -- 1.3... 7 Cable lug -DIN -- -- DIN 623-5-2.5, -5-6, -5-1, -5-16, -5-25 -JIS -- -- JIS C 285 R 2-5, 5.5-5, 8-5, 1-5 Connection, auxiliary/control contacts Conductor cross-section mm AWG 1 x (.5... 2.5), 2 x (.5... 1.) 2... 12.5... 2.5 2... 12 Stripped length mm 7 1 7 Terminal screw M3 -- M3 Tightening torque NM.5....6 --.5....6 lb. in.5... 5.3 --.5... 5.3 1) If two different conductor cross-sections are connected to one clamping point, both cross-sections must lie in the range specified. If identical cross-sections are used, this restriction does not apply. 1 x (.5... 2.5), 2 x (.5... 1.) 2... 12 Siemens LV 1 T 27 /7

Solid-State Relays Siemens AG 27 3RF21 solid-state relays, single-phase, 22.5 mm Type I 1) max I e according to I e according to UL/CSA Power loss Minimum load Leakage current IEC 697--3 at I max current at R thha /T u = C at R thha /T u = C at R thha /T u = 5 C A K/W A K/W A K/W W A ma Main circuit 3RF21 2-... 2 2. 2 1.7 2 1.3 28.6.1 1 3RF21 3-1... 3 1.1 3.79 3.56.2.5 1 3RF21 5-1... 5.68 5.8 5.33 66.5 1 3RF21 5-2... 5.68 2 2.6 2 2.9 66.5 1 3RF21 5-3... 5.68 5.8 5.33 66.5 1 3RF21 7-1... 7. 5.77 5.6 9.5 1 3RF21 9-1... 88.33 5.9 5.85 118.5 1 3RF21 9-2... 88.33 2 2.8 2 3.5 118.5 1 3RF21 9-3... 88.33 88.22 83.19 118.5 1 1) I max provides information about the performance of the solid-state relay. The actual permitted rated operational current I e can be smaller depending on the connection method and cooling conditions. Note: The rate currents and Imax do not provide information about the full performance of the solid-state relay. The required heat sinks for the corresponding load currents can be determined from the characteristic curves, page /1. The minimum thickness values for the mounting surface must be observed. Type Rated impulse withstand capacity I tsm I 2 t value A A 2 s Main circuit 3RF21 2-... 2 2 3RF21 3-..A.2 3 5 3RF21 3-..A. 3 5 3RF21 3-..A.6 8 3RF21 5-... 6 18 3RF21 7-..A.2 12 72 3RF21 7-..A. 12 72 3RF21 7-..A.5 12 72 3RF21 7-..A.6 115 66 3RF21 9-... 115 66 Type 3RF21..-...2 3RF21..-... 3RF21..-...5 3RF21..-...6 Main circuit Rated operational voltage U e V 2... 23 8... 6 8... 6 8... 6 Operating range V 2... 253... 56... 66... 66 Rated frequency Hz 5/6 1 % Rated insulation voltage U i V 6 Blocking voltage V 8 1.2 1.6 Rage of voltage rise V/µs 1. Type 3RF21..-... 3RF21..-...2. 3RF21..-... Control circuit Method of operation DC operation AC operation DC operation Rated control supply voltage U s V 2 according to EN 61131-2 11... 23... 3 Rated frequency Hz -- 5/6 -- Of the control supply voltage Rated control voltage U c V 3 253 3 Typical actuating current ma 2 15 2 Response voltage V 15 9 Drop-out voltage V 5 1 Operating times ON-delay ms 1 + additional max. one half-wave 1) + additional max. one half-wave 1) 1 + additional max. one half-wave 1) OFF-delay ms 1 + additional max. one half-wave + additional max. one half-wave 1 + additional max. one half-wave 1) Only for zero-point-switching devices. /8 Siemens LV 1 T 27

Siemens AG 27 Solid-State Relays Fused version with semiconductor protection (similar to type of coordination "2") 1) The semiconductor protection for the SIRIUS controls can be used with different protective devices. This allows protection by means of LV HRC fuses of gg operational class or miniature circuit breakers. Siemens recommends the use of special SITOR semiconductor fuses. The table below lists the maximum permissible fuses for each SIRIUS control. 3RF21 solid-state relays, single-phase, 22.5 mm If a fuse is used with a higher rated current than specified, semiconductor protection is no longer guaranteed. However, smaller fuses with a lower rated current for the load can be used without problems. For protective devices with gg operational class and for SITOR full range fuses 3NE1, the minimum cross-sections for the conductor to be connected must be taken into account. Type All-range fuse Semiconductor protection fuses Cable and line protection fuses LV HRC design Cylindrical design LV HRC design Cylindrical design LV HRC design gr/sitor 3NE1 ar/sitor 3NE8 1 x 38 mm ar/sitor 3NC1 1 x 51 mm ar/sitor 3NC1 22 x 58 mm ar/sitor 3NC2 2 DIAZED 3RF21 2.-...2 3NE1 81-3NE8 15-1 3NC1 2 3NC1 2 3NC2 22 3NA2 83 3NW6 1-1 3NW6 11-1 -- 5SB1 71 3RF21 2.-... 3NE1 813-3NE8 15-1 3NC1 16 3NC1 2 3NC2 22 3NA2 81 -- 3NW6 11-1 -- 5SB1 1 3RF21 3.-...2 3NE1 815-3NE8 3-1 3NC1 32 3NC1 32 3NC2 232 3NA2 83 -- 3NW6 13-1 -- 5SB311 3RF21 3.-... 3NE1 815-3NE8 3-1 3NC1 25 2) 3NC1 32 3NC2 232 3NA2 83 -- 3NW6 11-1 -- 5SB1 71 3RF21 3.-...6 3NE1 815-3NE8 3-1 3NC1 32 3NC1 32 3NC2 232 3NA2 83-6 -- -- -- -- 3RF21 5.-...2 3NE1 817-3NE8 17-1 -- 3NC1 5 3NC2 25 3NA2 81 -- 3NW6 17-1 3NW6 27-1 5SB3 21 3RF21 5.-... 3NE1 82-3NE8 17-1 -- 3NC1 5 3NC2 25 3NA2 87 -- -- 3NW6 25-1 5SB3 11 3RF21 5.-...6 3NE1 83-3NE8 17-1 -- 3NC1 5 3NC2 25 3NA2 87-6 -- -- -- -- 3RF21 7.-...2 3) 3NE1 82-3NE8 2-1 -- -- 3NC2 28 3NA2 817 -- -- 3NW6 217-1 5SB3 31 3RF21 7.-... 3) 3NE1 2-2 3NE8 2-1 -- -- 3NC2 28 3NA2 812 -- -- 3NW6 212-1 5SB3 21 3RF21 7.-...5 3) 3NE1 2-2 3NE8 2-1 -- -- 3NC2 28 3NA2 812 -- -- 3NW6 212-1 5SB3 21 3RF21 7.-...6 3) 3NE1 2-2 3NE8 2-1 -- -- 3NC2 28 3NA2 812-6 -- -- -- -- 3RF21 9.-...2 3) 3NE1 21-2 3NE8 21-1 -- -- 3NC2 2 3NA2 817 -- -- 3NW6 217-1 5SB3 31 3RF21 9.-... 3) 3NE1 21-2 3NE8 21-1 -- -- 3NC2 28 2) 3NA2 812 -- -- 3NW6 212-1 5SB3 21 3RF21 9.-...6 3) 3NE1 2-2 2) 3NE8 21-1 -- -- 3NC2 28 2) 3NA2 812-6 -- -- -- -- Suitable fuse holders, fuse bases and switchgear can be found in Catalog LV 1, Chapter 19. 1) Type of coordination "2" according to EN 697--1: In the event of a short-circuit, the controls in the load feeder must not endanger persons or the installation. They must be suitable for further operation. For fused configurations, the protective device must be replaced. 2) These fuses have a smaller rated current than the solid-state relays. 3) These versions can also be protected against short-circuits with miniature circuit breakers as described in the notes on "SIRIUS Solid-State Contactors Special Version Short-Circuit Resistant". gg 3NA 1 x 38 mm gg 3NW 1 x 51 mm gg 3NW 22 x 58 mm gg 3NW Quick 5SB Siemens LV 1 T 27 /9

Solid-State Relays Siemens AG 27 3RF21 solid-state relays, single-phase, 22.5 mm Characteristic curves Dependence of the device current I e on the ambient temperature T a Min. thickness of the heat sink s mounting plate mm Module power loss M in W 2 6 1 1 18 22 2 35 3 25 2 15 1 5 1 2 3 5 6 Device current Ambient temperature a in C NSB_153b Rthha 1,3 K/W 1,6 K/W 2 K/W 2,5 K/W 3,2 K/W K/W 5 K/W 6 K/W 8 K/W 12 K/W Type current 2 A (3RF21 2, 3RF2 2) 1) Min. thickness of the heat sink s mounting plate mm 5 mm 6 Module power loss M in W 6 1 1 18 22 26 3 3 36 5 3 2 1 1 2 3 5 6 Device current Ambient temperature a in C NSB_15b R thha,65 K/W,85 K/W 1,1 K/W 1,5 K/W 2,1 K/W 3 K/W K/W 5 K/W 7 K/W 1 K/W Type current 3 A (3RF21 3, 3RF2 3) Min. thickness of the heat sink s mounting plate mm 5 mm 8 mm 9 Module power loss M in W 5 15 25 35 5 55 6 8 7 6 5 3 2 1 1 2 3 5 6 Device current Ambient temperature a in C NSB_155b R thha, K/W,53 K/W,68 K/W,85 K/W 1,1 K/W 1,5 K/W 2 K/W 3 K/W 5 K/W 1 K/W Type current 5 A (3RF21 5, 3RF2 5) 1) For arrangement example see next page. /1 Siemens LV 1 T 27

Siemens AG 27 Solid-State Relays 3RF21 solid-state relays, single-phase, 22.5 mm Min. thickness of the heat sink s mounting plate mm 5 mm 8 mm 1 mm 12 Module power loss M in W 1 8 6 2 1 3 5 7 85 1 2 3 5 6 Device current Ambient temperature a in C Type current 7 A (3RF21 7, 3RF2 7) NSB_156b R thha,22 K/W,3 K/W, K/W,55 K/W,75 K/W 1 K/W 1,5 K/W 2 K/W 3 K/W 5 K/W Min. thickness of the heat sink s mounting plate mm 5 mm 8 mm 1 mm 12 Module power loss M in W 1 8 6 2 1 3 5 7 9 1 2 3 5 6 Device current Ambient temperature a in C NSB_157b R thha,2 K/W,3 K/W,39 K/W,5 K/W,65 K/W,85 K/W 1,1 K/W 1,6 K/W 2,5 K/W K/W Type current 9 A (3RF21 9, 3RF2 9) Arrangement example Given conditions: I e = 2 A and T a = C. The task is to find the thermal resistance R thha and the heat sink overtemperature dt ha. From the diagram on the left P M =28W, from the diagram on the right R thha =2.K/W. This results in: dt ha = R thha PM = 2.K/W 28W = 56K. At dt ha = 56 K the heat sink must therefore have an R thha =2.K/W. Siemens LV 1 T 27 /11

Solid-State Relays 3RF21 solid-state relays, single-phase, 22.5 mm Dimensional drawings Solid-state relays! # # & # # Screw terminal Spring-loaded terminal Ring terminal lug 3RF21.-1.A.. 3RF21.-2.A.. 3RF21.-3.A.. " # " # " % # $ ' # " # 5 * "!! = $ ' Terminal cover 3RF29-3PA88! # # " &! #! % #! $ # ' Siemens AG 27 % # # 5 * " % Schematics Version DC control supply voltage Version AC control supply voltage Switching example 1 L A1 + A2-1 L A1 A2 1/N/PE 5 Hz 23 V L N PE NSB_162 2 T NSB_163 2 T F1 F2 K1 S1 ON/OFF 1 L A1 A2 2 T NSB_158 R /12 Siemens LV 1 T 27

Siemens AG 27 Solid-State Relays 3RF2 solid-state relays, single-phase, 5 mm Overview 5 mm solid-state relays The solid-state relays with a width of 5 mm provide for connection of the power supply lead and the load from above. This makes it easy to replace existing solid-state relays in existing arrangements. The connection of the control cable also saves space in much the same way as the 22.5 mm design, as it is simply plugged on. Technical specifications Type 3RF2..-1... 3RF2..-... General data Ambient temperature During operation, derating from C C -25... +6 During storage C -55... +8 Installation altitude m... 1; derating from 1 Shock resistance g/ms 15 /11 According to IEC 668-2-27 Vibration resistance g 2 According to IEC 668-2-6 Degree of protection IP2 Electromagnetic compatibility (EMC) Emitted interference - Conducted interference voltage Class A for industrial applications according to IEC 697--3 - Emitted, high-frequency interference Class A for industrial applications voltage according to IEC 697--3 Interference immunity - Electrostatic discharge kv Contact discharge ; air discharge 8; behavior criterion 2 according to IEC 61--2 (corresponds to degree of severity 3) - Induced RF fields MHz.15... 8; 1 dbµv; behavior criterion 1 according to IEC 61--6 - Burst according to IEC 61-- kv 2/5. khz; behavior criterion 1 - Surge according to IEC 61--5 kv Conductor - ground 2; conductor - conductor 1; behavior criterion 2 Connection type Screw connections Spring-loaded terminal connections Connection, main contacts Conductor cross-section -Solid mm 2 2 x (1.5... 2.5) 1), 2 x (2.5... 6) 1) -- - Finely stranded with end sleeve mm 2 2 x (1... 2.5) 1), 2 x (2.5... 6) 1), 1 x 1 -- - Solid or stranded, AWG conductors 2x (AWG 1... 1) -- Terminal screw M -- Tightening torque NM 2... 2.5 -- lb. in 7... 1.3 -- Connection, auxiliary/control contacts Conductor cross-section mm 2 1 x (.5... 2.5), 2 x (.5... 1.), AWG 2... 12 Stripped length mm 7 1 Terminal screw M3 -- Tightening torque NM.5....6 -- lb. in.5... 5.3 -- 1) If two different conductor cross-sections are connected to one clamping point, both cross-sections must lie in the range specified. If identical cross-sections are used, this restriction does not apply..5... 2.5, AWG 2... 12 Siemens LV 1 T 27 /13

Solid-State Relays Siemens AG 27 3RF2 solid-state relays, single-phase, 5 mm Type 1) I max I e according to I e according to UL/CSA Power loss IEC 697--3 at I max at R thha /T u = C at R thha /T u = C at R thha /T u = 5 C Minimum load current Leakage current A K/W A K/W A K/W W A ma Main circuit 3RF2 2-1.A.. 2 2. 2 1.7 2 1.3 28.6.1 1 3RF2 3-1.A.. 3 1.1 3.79 3.56.2.5 1 3RF2 5-1.A.. 5.68 5.8 5.33 66.5 1 3RF2 7-1.A.. 7. 5.77 5.6 9.5 1 3RF2 9-1.A.. 88.33 5.9 5.85 118.5 1 1) I max provides information about the performance of the solid-state relay. The actual permitted rated operational current I e can be smaller depending on the connection method and cooling conditions. Note: The rate currents and Imax do not provide information about the full performance of the solid-state relay. The required heat sinks for the corresponding load currents can be determined from the characteristic curves, page /1. The minimum thickness values for the mounting surface must be observed. Type Rated impulse withstand capacity I tsm I 2 t value A A²s Main circuit 3RF2 2-1.A.. 2 2 3RF2 3-1.A.2 3 5 3RF2 3-1.A. 3 5 3RF2 3-1.A.6 8 3RF2 5-1.A.. 6 18 3RF2 7-1.A.2 12 72 3RF2 7-1.A. 12 72 3RF2 7-1.A.5 12 72 3RF2 7-1.A.6 115 66 3RF2 9-1.A.. 115 66 Type 3RF2.-1.A.2 3RF2.-1.A. 3RF2.-1.A.5 3RF2.-1.A.6 Main circuit Rated operational voltage U e V 2... 23 8... 6 8... 6 8... 6 Operating range V 2... 253... 56... 66... 66 Rated frequency Hz 5/6 1 % Rated insulation voltage U i V 6 Blocking voltage V 8 12 16 Rage of voltage rise V/ms 1 Type 3RF2.-1.A. 3RF2.-1.A2. 3RF2.-1.A. Control circuit Method of operation DC operation AC operation DC operation Rated control supply voltage U S V 2 according to EN 61131-2 11 23 3 Rated frequency of the control supply Hz -- 5/6 1 % -- voltage Rated control voltage U c V 3 253 3 Typical actuating current ma 2 15 2 Response voltage V 15 9 Drop-out voltage V 5 1 Operating times ON-delay ms 1 + additional max. one half-wave 1) + additional max. one half-wave 1) 1 + additional max. one half-wave 1) OFF-delay ms 1 + additional max. one half-wave + additional max. one half-wave 1 + additional max. one half-wave 1) Only for zero-point-switching devices. /1 Siemens LV 1 T 27

Siemens AG 27 Solid-State Relays Fused version with semiconductor protection (similar to type of coordination "2") 1) The semiconductor protection for the SIRIUS controls can be used with different protective devices. This allows protection by means of LV HRC fuses of gg operational class or miniature circuit breakers. Siemens recommends the use of special SITOR semiconductor fuses. The table below lists the maximum permissible fuses for each SIRIUS control. 3RF2 solid-state relays, single-phase, 5 mm If a fuse is used with a higher rated current than specified, semiconductor protection is no longer guaranteed. However, smaller fuses with a lower rated current for the load can be used without problems. For protective devices with gg operational class and for SITOR full range fuses 3NE1, the minimum cross-sections for the conductor to be connected must be taken into account. Type All-range fuses LV HRC design gr/sitor 3NE1 Semiconductor fuses LV HRC Cylindrical design design ar/sitor 3NE8 1 x 38 mm ar/sitor 3NC1 1 x 51 mm ar/sitor 3NC1 22 x 58 mm ar/sitor 3NC2 2 Cable and line protection fuses LV HRC Cylindrical design design DIAZED 3RF2 2-1.A.2 3NE1 81-3NE8 15-1 3NC1 2 3NC1 2 3NC2 22 3NA2 83 3NW6 1-1 3NW6 11-1 -- 5SB1 71 3RF2 2-1.A. 3NE1 813-3NE8 15-1 3NC1 16 3NC1 2 3NC2 22 3NA2 81 -- 3NW6 11-1 -- 5SB1 1 3RF2 3-1.A.2 3NE1 815-3NE8 3-1 3NC1 32 3NC1 32 3NC2 232 3NA2 83 -- 3NW6 13-1 -- 5SB311 3RF2 3-1.A. 3NE1 815-3NE8 3-1 3NC1 25 2) 3NC1 32 3NC2 232 3NA2 83 -- 3NW6 11-1 -- 5SB1 71 3RF2 3-1.A.6 3NE1 815-3NE8 3-1 3NC1 32 3NC1 32 3NC2 232 3NA2 83-6 -- -- -- -- 3RF2 5-1.A.2 3NE1 817-3NE8 17-1 -- 3NC1 5 3NC2 25 3NA2 81 -- 3NW6 17-1 3NW6 27-1 5SB3 21 3RF2 5-1.A. 3NE1 82-3NE8 17-1 -- 3NC1 5 3NC2 25 3NA2 87 -- -- 3NW6 25-1 5SB3 11 3RF2 5-1.A.6 3NE1 83-3NE8 17-1 -- 3NC1 5 3NC2 25 3NA2 87-6 -- -- -- -- 3RF2 7-1.A.2 3) 3NE1 82-3NE8 2-1 -- -- 3NC2 28 3NA2 817 -- -- 3NW6 217-1 5SB3 31 3RF2 7-1.A. 3) 3NE1 2-2 3NE8 2-1 -- -- 3NC2 28 3NA2 812 -- -- 3NW6 212-1 5SB3 21 3RF2 7-1.A.5 3) 3NE1 2-2 3NE8 2-1 -- -- 3NC2 28 3NA2 812 -- -- 3NW6 212-1 5SB3 21 3RF2 7-1.A.6 3) 3NE1 2-2 3NE8 2-1 -- -- 3NC2 28 3NA2 812-6 -- -- -- -- 3RF2 9-1.A.2 3) 3NE1 21-2 3NE8 21-1 -- -- 3NC2 2 3NA2 817 -- -- 3NW6 217-1 5SB3 31 3RF2 9-1.A. 3) 3NE1 21-2 3NE8 21-1 -- -- 3NC2 28 2) 3NA2 812 -- -- 3NW6 212-1 5SB3 21 3RF2 9-1.A.6 3) 3NE1 2-2 2) 3NE8 21-1 -- -- 3NC2 28 2) 3NA2 812-6 -- -- -- -- Suitable fuse holders, fuse bases and controls can be found in Catalog LV 1, Chapter 19. 1) Type of coordination "2" according to EN 697--1: In the event of a short-circuit, the controls in the load feeder must not endanger persons or the installation. They must be suitable for further operation. For fused configurations, the protective device must be replaced. 2) These fuses have a smaller rated current than the solid-state relays. 3) These versions can also be protected against short-circuits with miniature circuit breakers as described in the notes on "SIRIUS Solid-State Contactors Special Version Short-Circuit Resistant". gg 3NA 1 x 38 mm gg 3NW 1 x 51 mm gg 3NW 22 x 58 mm gg 3NW Quick 5SB Characteristic curves See 3RF21 solid-state relays, 22.5 mm. Siemens LV 1 T 27 /15

Solid-State Relays 3RF2 solid-state relays, single-phase, 5 mm Dimensional drawings 3RF2.-1.A..! #! " # & " # # & " % # # Siemens AG 27 " # "!! # # " & & 5 * "! = Schematics Version DC control supply voltage Version AC control supply voltage Switching example 1 L A1 + A2-1 L A1 A2 1/N/PE 5 Hz 23 V L N PE NSB_162 2 T NSB_163 2 T F1 F2 K1 S1 ON/OFF 1 L A1 A2 2 T NSB_158 R /16 Siemens LV 1 T 27

Siemens AG 27 Solid-State Relays 3RF22 solid-state relays, 3-phase, 5 mm Overview 5 mm solid-state relays The 3RF22 solid-state relays with a width of 5 mm provide space advantages over solutions with single-phase versions. The logical connection method, with the power infeed from above and load connection from below, ensures tidy installation in the control cabinet. Important features: LED display Variety of connection methods Plug-in control connection Degree of protection IP2 Zero-point switching Two-phase of three-phase controlled Technical specifications Type 3RF22..-1... 3RF22..-2... 3RF22..-3... General data Ambient temperature During operation, derating from C C -25... +6 During storage C -55... +8 Installation altitude m... 1; > 1 ask Technical Assistance Shock resistance g/ms 15/11 According to IEC 668-2-27 Vibration resistance g 2 According to IEC 668-2-6 Degree of protection IP2 Insulation strength at 5/6 Hz V rms (main/control circuit to floor) Electromagnetic compatibility (EMC) Emitted interference - Conducted interference voltage according Class A for industrial applications 1) to IEC 697--3 - Emitted, high-frequency interference Class A for industrial applications voltage according to IEC 697--3 Interference immunity - Electrostatic discharge kv Contact discharge ; air discharge 8; behavior criterion 2 according to IEC 61--2 (corresponds to degree of severity 3) - Induced RF fields MHz.15... 8; 1 dbµv; behavior criterion 1 according to IEC 61--6 - Burst according to IEC 61-- kv 2/5. khz; behavior criterion 1 - Surge according to IEC 61--5 kv Conductor - ground 2; conductor - conductor 1; behavior criterion 2 Connection type Screw terminals Spring-loaded terminal Ring terminal end connections connections Connection, main contacts Conductor cross-section -Solid mm 2 2 x (1.5... 2.5) 2), 2 x (2.5... 6) 2) 2 x (.5... 2.5) -- - Finely stranded with end sleeve mm 2 2 x (1... 2.5) 2), 2 x (2.5... 6) 2), 2 x (.5... 1.5) -- 1 x 1 - Finely stranded without end sleeve mm 2 -- 2 x (.5... 2.5) -- - Solid or stranded, AWG conductors 2 x (AWG 1... 1) 2 x (AWG 18... 1) -- Stripped length mm 1 1 Terminal screw M -- M5 - Tightening torque, Nm 2... 2.5 2.5... 2 «5... 6 mm, PZ 2 lb.in 18... 22 18... 22 Cable lug -- -- - According to DIN 623 5-2.5... 5-25 - According to JIS C 285 R 2-5... 1-5 Connection, auxiliary/control contacts Conductor cross-section, with or without end sleeve mm AWG 1 x (.5... 2.5), 2 x (.5... 1.) 2... 12.5... 2.5 2... 12 Stripped length mm 7 1 7 Terminal screw M3 -- M3 - Tightening torque, Nm.5....6.5....6 «3.5, PZ 1 lb.in.5... 5.3.5... 5.3 1) These products were built as Class A devices. The use of these devices in residential areas could result in lead in radio interference. In this case these may be required to introduce additional interference suppression measures. 2) If two different conductor cross-sections are connected to one clamping point, both cross-sections must lie in the range specified. If identical crosssections are used, this restriction does not apply. 1 x (.5... 2.5), 2 x (.5... 1.) 2... 12 Siemens LV 1 T 27 /17

Solid-State Relays Siemens AG 27 3RF22 solid-state relays, 3-phase, 5 mm Type 1) I max I e acc. to IEC 697--3 I e according to UL/CSA Power loss Minimum load Max. leakage at R thha /T u = C at R thha /T u = C at R thha /T u = 5 C at I max current current A K/W A K/W A K/W W A ma Main circuit 3RF22 3-. AB.. 3.57 3.57 3. 81.5 1 3RF22 55-1AB.. 55.18 5.27 5.19 151.5 1 3RF22 55-2AB.. 2 1.83 2 1.58 3RF22 55-3AB.. 5.27 5.19 3RF22 3-. AC.. 3.33 3.33 3.25 122.5 1 3RF22 55-1AC.. 55.9 5.15 5.1 226.5 1 3RF22 55-2AC.. 2 1.19 2 1.2 3RF22 55-3AC.. 5.15 5.1 1) I max provides information about the performance of the solid-state relay. The actual permitted rated operational current I e can be smaller depending on the connection method and cooling conditions. Type Rated impulse withstand capacity I tsm I 2 t value A A 2 s Main circuit 3RF22 3-...5 3 5 3RF22 55-...5 6 18 Type 3RF22..-.AB.5 3RF22..-.AC.5 Main circuit Controlled phases Two-phase Three-phase Rated operational voltage U e V 8... 6 8... 6 Operating range V... 66... 66 Rated frequency Hz 5/6 1 % 5/6 1 % Rated insulation voltage U i V 6 6 Rated impulse withstand voltage U imp kv 6 6 Blocking voltage V 12 12 Rage of voltage rise V/µs 1. 1. Type 3RF22..-.AB. 3RF22..-.AC. Control circuit Method of operation DC operation DC operation Rated control supply voltage U s V... 3... 3 Typical actuating current ma 3 3 Response voltage V 15 15 Drop-out voltage V 1 1 Operating times ON-delay ms 1 + max. one half-wave 1 + max. one half-wave OFF-delay ms 1 + max. one half-wave 1 + max. one half-wave Fused version with semiconductor protection (similar to type of coordination "2") 1) The semiconductor protection for the 3RF22 controls can be used with different protective devices. Siemens recommends the use of special SITOR semiconductor fuses. The table below lists the maximum permissible fuses for each 3RF22 control. Order No. All-range fuses LV HRC design gr/sitor 3NE1 Semiconductor fuses LV HRC Cylindrical design design ar/sitor 3NE8 1 x 38 mm ar/sitor 3NC1 1 x 51 mm ar/sitor 3NC1 Suitable fuse holders, fuse bases and controls can be found in Catalog LV 1, Chapter 19. 1) Type of coordination "2" according to EN 697--1: If a fuse is used with a higher rated current than specified, semiconductor protection is no longer guaranteed. However, smaller fuses with a lower rated current for the load can be used without problems. 22 x 58 mm ar/sitor 3NC2 2 Cable and line protection fuses LV HRC Cylindrical design design gg 3NA 1 x 38 mm gg 3NW 1 x 51 mm gg 3NW 22 x 58 mm gg 3NW DIAZED Rated operational voltage U e up to 56 V 3RF22 3-... 3NE1 81-3NE8 3-1 3NC1 32 3NC1 3 3NC2 232 3NA3 83-6 -- 3NW6 11-1 -- 3SB1 17 3RF22 55-... 3NE1 82-3NE8 2-1 -- 3NC1 5 3NC2 263 3NA3 87-6 -- -- 3NW6 25-1 3SB3 11 Rated operational voltage U e up to 66 V 3RF22 3-... 3NE1 81-3NE8 3-1 3NC1 25 3NC1 3 3NC2 232 3NA3 83-6 -- -- -- -- 3RF22 55-... 3NE1 83-3NE8 18-1 -- 3NC1 5 3NC2 25 3NA3 85-6 -- -- -- -- Quick 5SB In the event of a short-circuit, the controls in the load feeder must not endanger persons or the installation. They must be suitable for further operation. For fused configurations, the protective device must be replaced. /18 Siemens LV 1 T 27

Siemens AG 27 Solid-State Relays Characteristic curves Dependence of the device current I e on the ambient temperature T a (two-phase controlled) 3RF22 solid-state relays, 3-phase, 5 mm Min. thickness of the heat sink s mounting plate 3 mm 5 mm 1 Module power loss M in W 8 6 R thha,35 K/W,5 K/W,56 K/W,75 K/W 1 K/W 1,3 K/W 1,7 K/W 2,2 K/W 2 3 K/W K/W NSB_1671a 5 K/W 7 K/W 1 K/W 12 2 28 3 36 1 2 3 5 6 Device current Ambient temperature a in C Type current 3 A (3RF22 3-.AB..) Min. thickness of the heat sink s mounting plate 3 mm 5 mm 16 Module power loss M in W 1 12 1 8 R thha,13 K/W,18 K/W,25 K/W,37 K/W,55 K/W 6,8 K/W 1,2 K/W 2 K/W 3 K/W K/W 5 15 25 35 5 55 Device current 2 1 2 3 5 Ambient temperature a in C NSB_1672a 6 5 K/W 7 K/W 1 K/W Type current 55 A (3RF22 55-.AB..) Siemens LV 1 T 27 /19

Solid-State Relays Siemens AG 27 3RF22 solid-state relays, 3-phase, 5 mm Dependence of the device current I e on the ambient temperature T a (three-phase controlled) Min. thickness of the heat sink s mounting plate 3 mm 5 mm 16 Module power loss M in W 1 12 1 8 R thha,26 K/W,33 K/W, K/W,62 K/W,9 K/W 6 1,3 K/W 1,7 K/W 2,2 K/W 3 K/W K/W 12 2 28 3 36 2 1 2 3 5 NSB_1673a 6 5 K/W 7 K/W 1 K/W Device current Ambient temperature a in C Type current 3 A (3RF22 3-.AC..) Min. thickness of the heat sink s mounting plate 3 mm 5 mm 25 Module power loss M in W 2 15 R thha,6 K/W,9 K/W,15 K/W,25 K/W 1, K/W,6 K/W,8 K/W 1,1 K/W 5 1,5 K/W 2 K/W 5 15 25 35 5 55 1 2 3 5 NSB_167a 6 3 K/W K/W 6 K/W Device current Ambient temperature a in C Type current 55 A (3RF22 55-.AC..) Arrangement example Given conditions: I e = 55 A and T a = C. The task is to find the thermal resistance R thha and the heat sink overtemperature dt ha. From the diagram on the left P M = 227 W, from the diagram on the right R thha =.9K/W. This results in: dt ha = R thha PM =.9 K/W 227 W = 2. K. At dt ha = 2. K the heat sink must therefore have an R thha =.9 K/W. /2 Siemens LV 1 T 27

Siemens AG 27 Solid-State Relays 3RF22 solid-state relays, 3-phase, 5 mm Dimensional drawings Solid-state relay Spring-loaded terminals Screw terminal Spring-loaded terminal Ring terminal lug 3RF22..-1... 3RF22..-2... 3RF22..-3... NSB_1689a 95 7,5 69 77 69 13 26 3 7 31 7 29 33 29 5 Schematics Two-phase controlled, DC control supply voltage Three-phase controlled, DC control supply voltage 1 L1 3 L2 5 L3 A1 + 1 L1 3 L2 5 L3 A1 + A2 - A2-2 T1 T2 6 T3 NSB_169 2 T1 T2 6 T3 NSB_1696 Siemens LV 1 T 27 /21

Solid-State Contactors Siemens AG 27 General data Overview The complete units consist of a solid-state relay plus optimized heat sink, and are therefore ready to use. They offer defined Rated current of the Example Max. conductor Minimum cable miniature circuit Type rated currents to make selection as easy as possible. cross-section length from breaker contactor to Depending on the version, current strengths of up to 88 A are load achieved. Like all of our solid-state switching devices, one of 6 A 5SY 16-6, 1 mm their particular advantages is their compact and space-saving 5 m 5SX2 16-6 design. 1 A 5SY 11-6, 1.5 mm 2 8 m With their insulated mounting foot they can easily be snapped onto a standard mounting rail, or they can be mounted on carrier 16 A 5SX2 11-6 5SY 116-6, 1.5 mm 2 12 m plates with fixing screws. This insulation enables them to be used in circuits with protective extra-low voltage (PELV) or safety 16 A 5SX2 116-6 5SY 116-6, 2.5 mm 2 2 m extra-low voltage (SELV) in building engineering. For other applications, such as for extended personal safety, the heat sink can be grounded through a screw terminal. 2 A 5SX2 116-6 5SY 12-6, 5SX2 12-6 2.5 mm 2 2 m The solid-state contactors are available in 2 different versions: 3RF23 Single-phase solid-state contactors 3RF2 3-phase solid-state contactors 1) The miniature circuit breakers can be used up to a maximum rated voltage of 8 V! 25 A 5SY 125-6, 2.5 mm 2 26 m 5SX2 125-6 Version for resistive loads, "zero-point switching" This standard version is often used for switching space heaters on and off. Version for inductive loads, "instantaneous switching" In this version the solid-state contactor is specifically matched to inductive loads. Whether it is a matter of frequent actuation of the 3/N/PE 5 Hz 23/ V L1 L2 L3 N 3/N/PE 5 Hz 23/ V L1 L2 L3 N valves in a filling plant or starting and stopping small operating F1 F1 F2 mechanisms in packet distribution systems, operation is carried out safely and noiselessly. K1 K1 Special "Low Noise" version 1 L 1 L Thanks to a special control circuit, this special version can be used in public networks up to 16 A without any additional measures such as interference suppressor filters. As a result it 2 T 2 T conforms to limit value curve class B according to EN 697--3 in terms of emitted interference. Special "Short-circuit-resistant" version Skillful matching of the power semiconductor with the performance I,A I,A of the solid-state contactor means that "short-circuit strength" can be achieved with a standard miniature circuit R1 R1 breaker. In combination with a B-type MCB or a conventional fuse, the result is a short-circuit resistant feeder. The setup and installation above can also be used for the solidstate relays with a I 2 t value of at least 66 A 2 s. In order to achieve problem-free short-circuit protection by means of miniature circuit breakers, however, certain boundary conditions must be observed. As the magnitude and duration of More information the short-circuit current are determined not only by the shortcircuit breaking response of the miniature circuit breaker but also the properties of the wiring system, such as the internal resistance of the input to the network and damping by controls and cables, particular attention must also be paid to these parameters. The necessary cable lengths are therefore shown for the main factor, the conductor resistance, in the table below. The following miniature circuit breakers with a type B tripping Selecting solid-state contactors The solid-state contactors are selected on the basis of details of the network, the load and the ambient conditions. As the solidstate contactors are already equipped with an optimally matched heat sink, the selection process is considerably simpler than that for solid-state relays. The following procedure is recommended: characteristic and 1 ka or 6 ka breaking capacity protect the Determine the rated current of the load and the mains voltage 3RF23..-.DA.. solid-state contactors in the event of short-circuits on the load and the specified conductor cross-sections and Select a solid-state contactor with the same or higher rated lengths: current than the load Check the correct contactor size with the aid of the rated current diagram, taking account of the installation conditions Ltg NSB_173b Ltg Ltg /22 Siemens LV 1 T 27

Siemens AG 27 Solid-State Contactors 3RF23 solid-state contactors, single-phase Technical specifications Type 3RF23..-.A... 3RF23..-.B... 3RF23..-.C... 3RF23..-.D... General data Ambient temperature During operation, derating from C C -25... +6 During storage C -55... +8 Installation altitude m... 1; derating from 1 Shock resistance g/ms 15/11 According to IEC 668-2-27 Vibration resistance g 2 According to IEC 668-2-6 Degree of protection IP2 Electromagnetic compatibility (EMC) Emitted interference according to IEC 697--3 - Conducted interference voltage - Emitted, high-frequency interference voltage Interference immunity - Electrostatic discharge according to IEC 61--2 (corresponds to degree of severity 3) - Induced RF fields Class A for industrial applications kv Contact discharge ; air discharge 8; behavior criterion 2 MHz.15... 8; 1 dbµv; behavior criterion 1 Class A for industrial applications; Class B for residential/ business/ commercial applications up to 16 A, AC51 Low Noise according to IEC 61--6 - Burst according to IEC 61-- kv 2/5. khz; behavior criterion 1 - Surge according to IEC 61--5 kv Conductor - ground 2; conductor - conductor 1; behavior criterion 2 Class A for industrial applications Type 3RF23..-1... 3RF23..-2... 3RF23..-3... General data Connection type Screw terminals Spring-loaded terminal Ring terminal end connections connections Connection, main contacts Conductor cross-section -Solid mm 2 2 x (1.5... 2.5) 1), 2 x (2.5... 6) 1) 2x (.5... 2.5) -- - Finely stranded with end sleeve mm 2 2 x (1... 2.5) 1), 2 x (2.5... 6) 1), 2x (.5... 1.5) -- 1 x 1 - Finely stranded without end sleeve mm 2 -- 2x (.5... 2.5) -- - Solid or stranded, AWG conductors 2 x (AWG 1... 1) 2 x (AWG 18... 1) -- Terminal screw M -- M5 Tightening torque Nm 2... 2.5 -- 2... 2.5 lb.in 7... 1.3 -- 7... 1.3 Cable lug -- -- -DIN DIN 623-5-2.5, -5-6, -5-1, -5-16, -5-25 -JIS JIS C 285 R 2-5, 5.5-5, 8-5, 1-5 Connection, auxiliary/control contacts Conductor cross-section mm AWG 1 x (.5... 2.5), 2 x (.5... 1.) AWG 2... 12.5... 2.5 AWG 2... 12 Stripped length mm 7 1 7 Terminal screw M3 -- M3 Tightening torque NM.5....6 --.5....6 lb.in.5... 5.3 --.5... 5.3 Permissible mounting positions ±1 ±1 1 x (.5... 2.5), 2 x (.5... 1.) AWG 2... 12 NSB_171 1) If two different conductor cross-sections are connected to one clamping point, both cross-sections must lie in the range specified. If identical cross-sections are used, this restriction does not apply. Type 3RF23..-...2 3RF23..-... 3RF23..-...5 3RF23..-...6 Main circuit Rated operational voltage U e V 2... 23 8... 6 8... 6 8... 6 Operating range V 2... 253... 56... 66... 66 Rated frequency Hz 5/6 1 % Rated insulation voltage U i V 6 Blocking voltage V 8 12 16 Rage of voltage rise V/µs 1 Siemens LV 1 T 27 /23