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

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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

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.

Access specifications, certifications, check availability and order parts below

Catalog #Supply
Relay Contacts ConfigIEEE Device NumbersRelay
DimensionsWeight (lbs/g)Auto Manual ResetFrequencyGF Trip Level AGF Trip Time sReset TypeRF Trip
Time Delay
Obsolete: 2019 -04-12
120N/A3 Form C (N.O./N.C.)64 - 95Fail-safe / Non Fail-safe3 H x 4 W x 4.4 D in.0 KgLatching50; 600.06Class A GFCIFront-panel switch/Remote N.O. Contact5
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