Circuit Breaker and Overcurrent Relay Test Set

Product Documents
  • Light Weight, Portable Primary Injection Test Instrument
  • Overcurrent Relay Testing
  • Ground Fault Performance Testing for NEC 230.95
  • Circuit Breaker Testing

The Megger MS-2A test set is used around the world by several thousand utility companies, industrial plants and electrical service organizations.

Model MS-2A is a self-contained test set that incorporates a variable high-current output and appropriate control circuitry and instrumentation for testing thermal, magnetic or solid-state motor overload relays, molded-case circuit breakers, ground-fault trip devices and overcurrent relays.

Product accessories
Technical Documents
Technical guide
Ground Fault Protection Testing per NEC 230.95(C) of Low Voltage Circuit Breakers