SE-502 Series - Ground-Fault Ground-Continuity Detector

Series: SE-502      Obsolete Sept. 16, 2013 Questions? Contact Littelfuse Support
The SE-502 Ground-Fault Ground-Continuity Detector provides Class-A GFCI trip level and trip times for personnel protection. As little as 5 mA of ground-fault current can be detected, and the internal neutral-grounding resistor limits the maximum ground-fault current to 100 mA. The SE-502 can be used on both energized and de-energized systems, and will continuously monitor neutral continuity, detect a load-side grounded neutral, and is capable of ground proving. These features make the SE-502 ideal for use with 120/208 V portable generators and in heat-trace applications.

The SE-502 Ground-Fault Ground-Continuity Detector will be discontinued after component inventory is depleted. Once inventory is depleted, there is no plan for offering a direct-replacement product. Please contact your Littelfuse representative to discuss alternative solutions.



Sensitive 5 mA ground-fault detection

Can be used with an appropriate breaker to provide Class A GFCI people protection

Internal neutral-grounding resistor

Limits maximum ground-fault current to 100 mA, creates a safer system and elminates arc-flash ground-fault hazards

Neutral-to-ground connection monitoring

Can detect a hazardous ungrounded condition and trip or alarm

On- and off-line monitoring

Can detect a ground fault when the system is energized or de-energized

Output contacts

Two Form C output contacts for alarming or
tripping purposes

Access specifications, certifications, check availability and order parts below

Catalog #Supply
SE-502-01120N/AThree Form C (N.O./N.C.)