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PGR-4700 Series Sensitive Ground-Fault Relay
Brand: Littelfuse, Inc.Operates on AC solidly grounded and AC resistance grounded systems.
The PGR-4700 sensitive ground-fault relay provides sensitive ground-fault protection without the problems associated with high-sensitivity nuisance tripping. It detects very low-level leakage current on large circuits to avoid or significantly reduce equipment damage and injury to personnel. The leakages can be identified as they occur and ground-faults can be detected before they become critical.
