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1 ffective February 011 Supersedes pril 005 Instruction Leaflet IL00005 Instruction Leaflet for lectronic Trip Units for LG-Frame Circuit Breakers and Motor Circuit Protectors Warning O NOT TTMPT TO LL OR PRFORM MINTNNC ON QUIPMNT WHIL IT IS NRGIZ. TH OR SVR PRSONL INJURY CN RSULT FROM CONTCT WITH NRGIZ QUIPMNT. LWYS VRIFY THT NO VOLTG IS PRSNT BFOR PROCING. Push to Click 1-5 in-lbs (.-. N.m) 5 mm 00 In-lb ( N m)

2 Instruction Leaflet IL00005 ffective February in-lbs ( N.m) TRIP ON RST TON CORPORTION Page

3 nstruction Leaflet IL00005 ffective February 011 I 1 5 a Settings * Inst. Inst. J t S 0 M 00 P t G 0 K N Q 00 L O R 1. Test Port - test port is built into each trip unit to allow use of a functional test kit. The test kit performs a test of the Long elay, Short elay Ground Fault functions. = = = C B Ir TST / LRM F G H STTUS tl IS IG tg (s) (xir) (xin Inst. 00. C 5 H0. Test L - To be used with a no trip functional test. This L is a dual function light. s previously stated, the L is used as a no trip indicator when using the test port. In normal modes, this L indicates a high load alarm. It will light if the continuous current is 5% of the Ir Setting and must be present for a second duration Ir - Continuous Current setting. In accordance with standards requirements, the trip unit initiates a trip of the circuit breaker within hours for an overload of % and will trip as a function of l²t for higher currents. Continuous Current Values for each Lettered Setting are indicated by the chart shown at the right. = = = C B Ir TST / LRM F G H STTUS tl IS IG tg (s) (xir) (xin Inst. 00. C 5 H0. tl - The number of seconds required to x lr. i.e. lr-00, tl - sec load current - 00 (x) The breaker will trip in seconds. 5. ls - Setting in multiples of lr. For short circuit conditions that exceed the short delay pick-up setting, the trip unit initiates a trip after a predetermined delay. 5. The IG - (xin) switch is the ground fault pick-up switch and is used on the LSIG & LSG styles to set the ground fault pick-up as a percentage of IN. (frame current) for example, a 00 frame with an IG(xIN) settings of 0.5 will provide a ground fault pick-up at 00.. For the LSI style, the short delay time is a flat response determined by the ts switch settings of, 0ms, or 00ms. For the LS styles, the short delay time is an I²t function. = = = TST / STTUS LRM Ir tl IS (s) (xir) F C G 0 B H Push to 5 ts 0 Inst. 00 C 5 H0. For the LSIG style, the short delay is a flat response determined by the ts/tg switch settings of, 0ms, or 00ms. This switch is a dual switch that also determines the ground fault time settings of, 0ms or 00ms. s an example, if the ts/tg switch is set at position J, then both short delay time and ground fault time are at flat. second example would be to set the ts/tg switch at position L, then the short delay flat time is and the ground fault flat time is at 00ms. The LSIG label (see above a) should be used in conjunction with the ts/tg switch to set any one of nine possible combinations of short delay and ground fault flat times. The LSIG label should be applied to the left side Breaker Frame Nameplate. = = = TST / STTUS LRM t L I S Ir (s) (xir) F C G 0 B H C 5 H0 9. For the LSG style, the short delay time is an I²t function while the ground fault flat time is set by the tg switch.. Status L - green status light indicates the operational status of the trip unit. If the load current exceeds approximately 0% of the maximum current rating (In) the breaker, the status light will blink on and off once each second. TON CORPORTION Page

4 Instruction Leaflet IL00005 ffective February & antaneous Features 11. PTT I i (xi n ).5 I i (xi n ).5 C 50 H1 C 50 H1 Settings tg * J K L tsd 0 M N O TST / STTUS 00 P Q R LRM t R (s) I I R sd (xi R ) I g (xi n ) tsd */ tg LONG SHORT GN SHORT / GN F M N O C G 0. L P B H. K Q. J R I R C B 1 TST / LRM F G H STTUS t R (s) I sd (xi R) LONG SHORT 0 50 t sd SHORT a LSIG LSI. The and adjustable antaneous features are only available on LSI and LSIG styles. Please refer to the labeling to the left of the test kit connector. The consists of the two lowest settings of the switch:.5x and.0x. For example, a 00 (In) L-Frame breaker with the switch set to.5x would trip instantaneously when the current exceeded The adjustable antaneous ( ) had five settings from x to x. For example, a 00 (In) L- Frame breaker with the ( I i ) switch set to x would trip instantaneously with the current at or above On the regular. L-Frame,. the lowest labeled ST setting is the aneous for the. The lowest ST settng labeled is 50ms. Note: The 50 L-Frame has an adjustable antaneous setting of X. For example, a 50 (I n ) L-Frame breaker with the (I i ) switch set to X would trip antaneously with currents at or above 000. I i I i (xi n ).5 C 50 H19 Settings tg * J K L tsd 0 M N O TST / STTUS 00 P Q R LRM t R (s) I I R sd (xi R ) I g (xi n ) tsd */ tg LONG SHORT GN SHORT / GN F M N O C G 0. L P B H. K Q. J R 50 LSIG Relay Wiring 1. This feature allows enabling of the maintenance mode remotely by applying vdc to the yellow (+) and black(-) wires that exit the left hand side of the breaker. The maintenance mode settings that is enabled is the.5x setting. I i (xin).5 C 50 H0 TST / STTUS LRM t R (s) I I R sd (xi R) LONG SHORT F C G 0 B H tsd SHORT LSI There are two indicators that can verify that the trip unit has been remotely activated/enabled into the maintenance mode feature: a) a blue L (MM) located on the top left side of the trip unit will light. N/OR b) a relay output is provided by the three wires exiting the left hand side of the breaker: blue=c, red=no, black=nc. The relay will change state when the maintenance mode is remotely enabled. Page TON CORPORTION

5 Instruction Leaflet IL00005 ffective February Neutral Current Sensor Installation Ground fault trip units are supplied from the factory with pigtail 9lead connections for a neutral current sensor (white and grey wires). { neutral current sensor is provided with each trip unit, if ordered.} neutral current sensor is available, but must be ordered separately. Series G Ground Fault Trip Units detect ground fault currents through Residual Sensing. They are not designed to use source ground or zero sequence ground fault sensing methods. If the system neutral is grounded but no phase to neutral loads are used, the neutral current sensor is not necessary. In that case, the white and grey leads on the trip unit should be cut off before installation.. If the system neutral is grounded and phase to neutral loads are used, then the neutral current sensor (see Figure 9) must be used. It should be connected to the breaker according to the diagram in Figure. It has the same turns ratio as the phase current sensors in the trip unit. NOTIC White + - Grey The polarity of the sensor connections is critical. lways observe the polarity markings on the installation drawings. The polarity markings are identified as white dots on the transformers. To insure correct ground fault equipment performance, conduct field tests to comply with National lectric Code requirements under rticle 0-95(C). See Section. for testing instructions. TON CORPORTION Page 5

6 Instruction Leaflet IL00005 ffective February 011 aton Corporation lectrical Sector 00 Cherrington Parkway Moon Township, P United States -TN-CR (--) aton.com 011 aton Corporation ll Rights Reserved Printed in US Publication No. IL00005H05 February 011 PowerChain Management is a registered trademark of aton Corporation. ll other trademarks are property of their respective owners.