Ground-fault Protection Equipment

The Micrologic ground-fault module (GFM) is a UL Listed circuit breaker accessory for equipment protection. It is a combination ground-fault relay and ground-fault sensing device.

●	A shunt trip may be field-installed in the HD, HG, HJ, HL, JD, JG, JJ and JL circuit breakers.

●	Shunt trip S29382 (12 Vdc) for circuit breaker may be factory- or field-installed

●	Adjustable ground-fault pickup levels

●	Adjustable ground-fault time delays

●	Integral ground fault push-to-test feature and ground-fault indicator

●	All GFMs are supplied for I-Line® mounting, easily convertible to unit mount by removing the I-Line brackets

●	Optional neutral current transformer for 3-phase 4-wire applications. Refer to instructions for proper installation

●	Zone-selective interlocking capability is standard with upstream Micrologic trip system circuit breakers. The GFM can also be zone interlocked with the GC ground-fault system by using a restraint interface module.See Supplementary Digest

●	120 Vac control power is required for integral test feature. Meets NEC 230-95(c)

Table 7.111:

Companion
Circuit Breaker
Prefix

Ground-fault
Pickup Adjustment
Range

20–100 A

40–200 A

a	Use NEMA 1 or 3R enclosures only. See page 7-58 for dimensions.

b	See Supplemental Digest for additional GFMs.


DE2	Discount Schedule	Modified 3/5/08

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