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Supplemental and Obsolescence Digest 174

Obsolescent Ground-Fault Protection

Ground Censor® Type GC 100—600 Vac

 

Ground Censor® Type GC100

The GP Ground Fault System is obsolete and the Ground Censor® Type GC Ground Fault Relays are in obsolescence and limited service availability. Contact your nearest Square D/Schneider Electric Sales Office for product availability or substitute the GC200 or Vigirex® Ground Fault Relays.

The GC system requires the following components: GC relay, GT sensor, circuit interrupter with 120 Vac shunt trip, and monitor components.

Monitor components:

●	Type GC Test with and without tripping

●	Test Button

●	Reset Button

●	Test Relay

●	Relay Socket

●	Class 9001 Type K1L38GH2

●	Class 9001 Type K1L38RH1

●	Class 8501 Type RS14, 120 Vac

●	Class 8501 Type NR45

 

Type GC Features:

●	120 Vac 50/60 Hz power required (50 VA min.). Contact your nearest Square D/Schneider Electric sales office on additional VA requirement of circuit breaker or Bolt‑Loc®.

●	Ground-fault current pickup adjustable from 100–1200 A.

●	Time delay field adjustable 0.1, 0.2, 0.3, or 0.5 seconds.

●	Monitor panel provides visual ground-fault indication and testing provisions to meet NEC 230-95. (Requires 50 VA control power, 120 Vac). Monitor panel components must be ordered separately.

●	120 Vac shunt trip is required on the circuit breaker or the Bolt-Loc® switch to interrupt the circuit.

●	Zone-selective interlocking capability with Micrologic® circuit breakers and GC systems is standard for multiple level protection. (When using zone-selective interlocking with Micrologic circuit breakers, a restraint interface module will be required)

A nameplate is supplied with each GC100 giving operation instructions for “Test With and Without Tripping” arrangement.

 

Table 11.66:

GC Relay

Description	Cat. No.a	$ Price
Type GC Relay	GC100	2822.00

a	Discount Schedule DE5A

Table 11.67:

GT Sensors

Relay Cat. No.	Sensor Cat. No.	Type	CT Ratio	Window Dimensions		$ Price
				in	mm
GC200E	GT912	Rectangular, Open Frame	600:1	5.5 x 8.5	140 x 216	1179.00
	GT918		600:1	5.5 x 14.5	140 x 368	1372.00
	GT930		600:1	5.5 x 26.5	140 x 673	180900
	GT1218	Rectangular, Open Frame	600:1	8.5 x 14.5	216 x 368	1729.00
	GT1224		600:1	8.5 x 20.5	216 x 521	1934.00
	GT1230		600:1	8.5 x 26.5	292 x 673	2164.00
	GT1327	Rectangular, Open Frame	600:1	9.5 x 24	241 x 610	1896.00
	GT1330		600:1	9.5 x 27	241 x 686	2146.00
	GT1530	Rectangular, Open Frame	600:1	11.5 x 26.5	292 x 673	2484.00

 

DE2

DE5A

Discount Schedule