Bulletin 817 Thermistor Protection Relay

Transcription

1 6 Bulletin 817 Accurate Temperature Monitoring for Critical Applications Automatic, Manual and Remote Reset Status Indicating LEDs DIN Rail or Panel Mounting Guarded Terminals IP20 1 N.O. and 1 N.C. Output Contacts as Standard No Set-Up or Adjustments Required for Installation TABLE OF CONTENTS Description Page Description Page Product Overview Product Selection Specifications Approximate Dimensions Description Bulletin 817 Thermistor Protection relays, utilized in conjunction with PTC thermistor sensors, provide accurate temperature monitoring in critical applications and severe environments such as widely varying temperatures and impeded ventilation and cooling. Conformity to Standards: IEC 255-8, IEC IEC 255-4, IEC 69 SEV, SEN Approvals: SEV NEMKO PTB CSA C.2 No. FI Your order must include: UL 508 CSA Certified UL Recognized Cat. No. of the relay selected with Voltage Suffix Code. 6-

2 Product Overview Model Cat. No. 817-A Overtemperature protection Short-circuit and open-circuit protection for sensor measuring circuit Trip indication (red LED) Automatic reset Manual reset Remote reset (external button) Storage of status in event of power failure for more than 3 hours at +25 C (77 F) unlimited (not temperature-dependent) Test button Power-on indication (green LED) = Standard feature = Cat. No. is incomplete. Refer to Product Selection below. Product Selection Cat. No. 817-A Description Cat. No. Thermistor Protection relay Thermistor Protection relay plus manual/remote reset plus manual/remote reset test function and power indication LED 817-A 817-M 817-U Voltage Suffix Code Cat. No. as listed is incomplete. Select a Voltage Suffix Code from the table below to complete the Cat. No. Example: Cat. No. 817-A for 24V, 50 Hz becomes Cat. No. 817-AKD. Voltage 24V 48V 110V 0V 240V 380V 415V 440V 50 Hz KD KH D A AJ KK I GB 60 Hz KD KH D A AJ KK I GB DC Z24 Z48 Specifications Page 6-16 Approximate Dimensions Page 6-18 Prices Consult Sales Office or price list 6-15

3 Specifications Electrical Rated Voltage Test Voltage Between separated circuits ➊ Rated insulation voltage: 300V. ➋ American National Standards Institute. ➌ According to CSA, UL: pilot duty 240V (B 300). ➍ For more technical information, consult Allen-Bradley Sales Office. ➎ Bulletin 817 to motor; installation: up to 200m not shielded. ➏ For automatic reset: connect r1-r2. Acc. to IEC V According to AS, BS, VDE V Acc. to SEV 380V According to CSA, UL ➊ 240V Alternating current acc. to IEC kv, 50/60 Hz, 1 min. Surge voltage acc. to IEC and SEN kv, 1.2/50 µs Interference voltage acc. to ANSI ➋ C a- 1974, IEC and SEN kv, 1 MHz, 2 s Rated supply voltage U s AC Special U s 24, 48V 50/60 Hz AC 110, 0, 240, 380, 415, 440V 50/60 Hz DC 24, 48V AC U s 50/60 Hz Permissible Fluctuations DC U s Power consumption AC 2.5VA (2.2W) DC 2.2W Output Relay Contact Data Contacts (electrically isolated) 1 make and 1 break Operating voltage ➌ [V] Continuous thermal current [A] Rated operational current with AC AC-11 [A] Rated operational current with DC DC-11 without protection circuit, L/R = 35 ms [A] with protection circuit ➍, L/R = 100 ms [A] Max. perm. make/break current [A] Rated current of back-up fuse: Max. fast-acting 16A; slow-blow 10A Mechanical Vibration Resistance According to IEC 68 ( Hz) 3g Impact Resistance According to IEC or DIN /7 30g, shock duration 18 ms, semi-sinusoidal in the 3 directions x, y, and z Measuring Line mm Minimum cross-section AWG Maximum length ➎ Reset Remote Reset with, 817-U Cat. No. 817-A m (ft) (656.2) (984.25) (1312.3) (1968.5) (3208.8) Automatic Manual or automatic ➏ Manual or automatic ➏ External contact at r1-r2 Max. line length for remote reset Potential-free make contact Up to 300m ( ft) shielded Up to 1000m ( ft) shielded 6-16

4 Specifications, Continued Environmental C TNF-20K 0 C TNF- 5K Trip memory In event of power supply failure (zero-voltage safe-guard) Construction Terminals TNF+15K TNF+ 5K TNF Protection class according to IEC 529 Max. cold resistance of PTC sensor chain 1500 Ω Max. number of series connected PTC sensors acc. to IEC Response level ϑ A = 25 C (13 F) +60 C (0 F) 3300 Ω ± 300 Ω Reset level ϑ A = 25 C (13 F) +60 C (0 F) 1800 Ω ± 300 Ω Response level with short circuit in sensor circuit ϑ A = 25 C (13 F) +60 C (0 F) 15 Ω Measuring voltage acc. to IEC DC < 2.5V Ambient Temperature Climatic Classification PTC sensor characteristic According to IEC Storage Time Open Terminals Connection wire cross-sections Device (less terminals) IP30 Normal operation Storage (in dry rooms) According to IEC humid heat 25 C ( 13 F) +60 C (0 F) 40 C ( 40 F) +60 C (0 F) 40 C (104 F), 92% rel. humidity, 56 days TNF: Rated response temperature At 25 C (77 F) > 3h At 40 C (104 F) > 1h At 60 C (0 F) > 15 min. Unlimited (not temperature-dependent) Captive 2 x 2.5 mm 2 (.0039 in 2 ) single wire or 2 x 1.5 mm 2 (.0023 in 2 ) with end ferrule Terminals (acc. to VBG 4) IP20 Installation Typical Wiring Diagram Bulletin 817 Thermistor Protection relay is designed for surface mounting with screw fixing according to hole plan EN or for snap-on fixing to a top hat rail EN 50 0'-35 x 7.5. Arrangement, assignment and marking of terminals in accordance with EN The mounting position of the Bulletin 817 does not influence its function Terminal and block circuit diagram of Bulletin 817 Terminal and Block Circuit Diagram T1 PTC Temperature Sensor Remote Reset ➊ U s A1(+) ( ) r1 r2 Thermal Trip Cat. No. 817-M, -U Reset Button Cat. No. 817-A, -M, -U Trip Memory for Power Failure Cat. No. 817-U Indication Output Relay Test Button 13 ➊ For automatic reset available in and, connect r1-r

5 Specifications/Approximate Dimensions Application Example Starter (Bulletin 100 and Bulletin 193) with additional Bulletin 817. Legend S1 S0 S2 U s H1 H2 Bulletin 100 contactor Bulletin 193 thermal overload relay Bulletin 817 Thermistor Protection relay ON button OFF button Remote button reset voltage Signal Lamp Contactor ON Signal Lamp Bulletin 817 tripped Thermistor in protected object Circuit Diagram Main Circuit L1 L2 L3 N PE A1 F Bulletin 817 T1 Control Circuit Impulse Contact Control L1 F7 AC Us S S1 S2 r1 2 ) r2 13 A1 Bulletin H2 H1 PTC The contacts 13 and of the output relay are drawn in their power-off position A1. M1 3 M +t N (L2/F8) A1 Approximate Dimensions Dimensions are shown in millimeters (inches). Dimensions are not intended for manufacturing purposes. Hole plan 4.8 (3/16) Position of terminals A1(+) 13 T1 ➊ 50 (1-31/32) 60 (2-23/64) 70 (2-3/4) 35 (1-3/8) 5 (13/64) 35 (1-3/8) r1 and r2 are not available on Cat. No. 817-A r1 r2 ( ) 45 (1-3/4) 7 (9/32) 95.5 (3-3/4) 95.5 (3-3/4) ➊ For Top Hat Rail 35mm to EN 50 0, Cat. No. 199-DR