Littelfuse, Inc.

Model SE-601 - DC Ground-Fault Monitor



The SE-601 is a microprocessor-based ground-fault relay for ungrounded dc systems. It provides sensitive ground-fault protection without the problems associated with nuisance tripping. Ground-fault current is sensed using an SE-GRM Series Ground-Reference Module—a resistor network that limits ground-fault current to 25 mA. The SE-601 is used on ungrounded dc systems ranging from industrial 24- Vdc control circuits to 1000-Vdc solar and transportation systems.

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