Relay Specialties, Inc. - Littelfuse - Products - Protection Relays

Available with normally open (Form A), normally closed (Form B), or combination normally open–normally closed (Form C) contacts
Fail safe ground check circuits
Conformal coatings protect internal circuits from corrosion

Model	Image	Description
SE-105, SE-107 SERIES		The SE-105/SE-107 is a combination ground-wire monitor and ground-fault relay for resistance-grounded systems. It continuously monitors the integrity of the ground conductor to protect portable equipment from hazardous voltages caused by ground faults. The SE-105/SE-107 is an excellent choice for trailing cables 5 kV and under in underground mining applications. For higher voltages or long-cable applications, see the SE-134C/SE-135.
SE-134C/SE-135 Series		The SE-134C/SE-135 is a microprocessor-based, combination ground-wire monitor and ground-fault relay for resistance-grounded or solidly grounded systems. It continuously monitors the integrity of the ground conductor to protect portable equipment from hazardous voltages caused by ground faults.