Electromechanical & Digital Protective Relays
Replacement protective relays for overcurrent, differential, distance, frequency, and voltage protection. The catalog lists electromechanical, solid-state, and digital relay types.
Protective Relay Solutions
The catalog lists protective relays for industrial and utility power systems, from legacy electromechanical relays that are no longer manufactured to modern digital multi-function relays. Call 800-232-5809 to ask about a specific relay.
Call 800-232-5809 to ask about relay testing, calibration, reconditioning, and on-site commissioning.
Types Listed in the Catalog
Overcurrent Relays
Time overcurrent and instantaneous overcurrent relays for feeder and transformer protection.
Differential Relays
Current differential relays for transformer, bus, and generator protection.
Distance Relays
Impedance-based relays for transmission line and interconnection protection.
Digital / Multifunction Relays
Modern microprocessor-based relays with multiple protective functions in a single unit.
Brands
Related Services
- Relay testing & calibration
- Protection coordination studies
- Relay replacement programs
- Settings development
- Field commissioning
- Legacy relay sourcing
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