Schneider Electric 2.0A Equipment Ground-Fault Trip Functions Testing, Trip Unit Resetting, 27-EN

48049-136-05	Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units
Rev. 01, 07/2012	Section 3—Operation

Equipment Ground-Fault Trip Functions Testing

Paragraph 230-95 (c) of the National Electrical Code requires that all equipment ground-fault protection systems be tested when first installed.

With the circuit breaker closed, test the ground- fault (Micrologic 6.0A trip unit only) trip functions. For instructions on how to close circuit breaker, refer to the circuit breaker installation instructions shipped with the circuit breaker.

1.Press the ground-fault test button (A). Circuit breaker should trip.

2.If circuit breaker does not trip, contact the local field office.

NOTE: Trip unit must be powered to test ground-fault trip function. The trip unit is powered if the circuit breaker is carrying more than 0.20 x In of load current, if the 24 Vdc external power supply is connected or if the Full- Function Test Kit or Hand-Held Test Kit is connected and on.

Figure 38: Test Equipment Ground-Fault Trip Function

06134249	Micro	logic	6.0 A
	100 %
	40 %
	menu

A

ENGLISH

Trip Unit Resetting

When the circuit breaker trips, the fault indicator will remain lit until the trip unit is reset.

Press the reset/test button (A) to reset the trip unit after trip.

Do not return circuit breaker to service until cause of trip is determined. For more information, refer to the circuit breaker installation instructions shipped with the circuit breaker.

Trip Unit Status Check

To check trip unit battery and trip indicators, press the test/reset button (A).

•All trip indicators (B) will light up

•Battery status will be displayed

•If no battery status is displayed, there is no battery installed.

•The battery bar graph reading is valid after the reset button has been released.

•If the battery bar graph shows the battery needs to be changed, use Square D battery catalog number S33593:

—lithium battery

—1.2AA, 3.6 V, 800 ma/h

For instructions on replacing battery, see Section 6—Battery Replacement.

Figure 39: Reset Trip Unit

A

06133379 Micrologic 6.0 A

NOTE: Trip unit must be powered to test battery. The trip unit is powered if the circuit breaker is carrying more than 0.20 x In of load current, if the 24 Vdc external power supply is connected or if the Full-Function Test Kit or Hand-Held Test Kit is connected and on.

Figure 40: Check Trip Unit Status

	B		A	Charged
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		A		Half	-Charged
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				Change Battery

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