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Littelfuse Ground-Fault Relays

Littelfuse Ground Fault Relays detect ground faults by monitoring current, voltage, resistance, or temperature deviations. These ground relays trigger alarms or trip circuit breakers when fault conditions occur. The fault relay feature AC supply voltage ratings from 120V to 600V and operates between 50Hz and 60Hz. These devices come with trip settings as low as 5mA and function in both grounded and ungrounded electrical systems. Typical applications of ground fault relay include electrical equipment protection, industrial control systems, power distribution networks, safety systems for personnel protection, and utility or commercial electrical installations.

Features

Alternating current supply voltage ratings
Ground fault trip settings
Meets CSA standards
Operates at standard frequencies
UL listed

Applications

Electrical equipment protection
Industrial control systems
Power distribution networks
Safety systems
Utility and commercial installations

Technical Specifications

Parameters	Values
Frequency Range	50Hz to 60Hz
Supply Voltage Rating	120Vac to 600Vac
Ground Fault Trip Setting	5mA
Maximum Height	213mm
Maximum Width	112.5mm

Additional Resources