Brochure

PowerPact H-, J-, and L-Frame Circuit Breakers
Accessories and Auxiliaries
125
02/2016
© 2011–2016 Schneider Electric
All Rights Reserved
Add-On Ground-Fault Module (GFM) (H- and J-Frame Only)
The Micrologic Ground-Fault Module (GFM) is a UL Listed/CSA Certified circuit breaker accessory
which protects equipment from damage caused by ground faults. It is an add-on module which, when
connected to a PowerPact H- or J-frame thermal-magnetic circuit breaker only, provides ground-fault
sensing and ground-fault relay functions.
HD/JD ground-fault modules feature:
• Adjustable ground-fault pickup levels
• Adjustable ground-fault time delays
• Integral ground-fault push-to-test feature
• Ground-fault indicator (mechanical for local, contacts for remote)
• All GFMs are supplied for I-Line™ mounting as standard, easily convertible to unit mount by
removing the I-Line bracket.
• Fault-powered (through the sensing current transformer) for electronics, shunt trip, and integral test
feature. Meets NEC 230.95(C).
• A 12 Vdc shunt trip module (Catalog No. S29382) is required in the circuit breaker. This may be
field installed or factory installed when the circuit breaker is ordered with an -SN suffix.
• UL 1053 – Ground-fault Sensing and Relaying Equipment
The GFM system requires the following:
• H-frame (15–150 A) or J-frame (150–250 A) molded case circuit breaker
• Shunt trip for circuit breaker (may be factory-installed or field-installed)
• Bus bar connection (terminal nut inserts) for OFF end of circuit breaker
• Optional neutral current transformer, catalog number GFM25CT (must be ordered for 4-wire
applications).
Ground-Fault Module
Module de défaut de mise à la terre
Modulo de falla a tierra
Ground-Fault Indicator
Fault Indicator
Push to reset
Indicateur de défaut de
mise à la terre
Pousser pour réinitialiser
Indicador de falla a tierra
Oprima para restablecer
Push-to-test
Requires 120 V
Pick-up
Delay Band
1=min.
1
23
4
20A
40A
60A
80A
100A
Class I Ground-fault Protection
Protection de défaut de mise à la terre classe I
Protección de falla a tierra clase I
100A 600 Vac/V max.
Replace cover after adjusting/Replacer le couvercle avant aprés le réglage/Vuelva a colocar la cubierta después de ajustar
52H
4
LISTED
Circuit
Breaker
Accessory
GFM150HD
TM
4068715 H238
DANGER PELIGRO
HAZARD OF ELECTRICAL SHOCK OR BURN.
DANGER DE D’CHARGE ELECTRIQUE OU DE
BRULURE.
PELIGRO DE DESCARGA ELECTRICA O
QUEMADURAS.
Terminal strip wiring terminals must
not be dielectric tested.
No se deben realizar pruebas
dieléctricasa a las terminalses de
la tabilla de conexiones.
Les bornes de câblage de la
barrette de connexion ne doivent
pas étre véroflées diélectriquement.
Replace lug cover after
wiring.
Replacez le couvre-
cosse après le câblage
.
Vuelva a colocar después
de realizar el cableado
PELIGRODANGER
®
!
J-Frame Circuit Breaker
with GFM Installed
Table 99: Ground-Fault Module
Catalog No. Rating Sensitivity Time Delay (Approximate)
GFM150HD 150 A 20, 40, 60, 80, 100 A 0.2, 0.3, 0.4, 0.6 sec
GFM250JD 250 A 40, 80, 120, 160, 200 A 0.2, 0.3, 0.4, 0.6 sec