Circuit Breaker Test Equipment

Perform testing of circuit breakers and relays, current transformers, ground fault trip devices, or use in other applications that require a high current power source. All models can be easily transported for on-site testing and deliver the best value and many superior features.

TEST SETS WITH 1,000-5,000 AMP OUTPUT

Model Maximum Output
HC-1 1000 Amps
HC-2 2000 Amps
HC-3 3000 Amps
HC-5 5000 Amps

TEST SETS WITH 8,000-75,000 AMP OUTPUT

Model Maximum Output
HC-8C 8,000 Amps
HC-12C 12,000 Amps
HC-20C 20,000 Amps
HC-40C 40,000 Amps
HC-75C 75,000 Amps

Microhmmeter-Contact Resistance Meters

The MRM Series will accurately measure very low contact resistances on all types of electrical products including switches and circuit breaker contacts, transformer and motor windings, wire and cable samples, joints in busbars, or any application where low resistance current is required.

  • 4-wire Kelvin measurement
  • Easy to read digital screen display
  • Printable test results via external or built-in printer
  • IEC safety compliant
MRM-10-V2
1 mA-10 A, 1 µΩ resolution, rechargeable battery
MRM-10E-V2
1 mA-10 A, 0.1 µΩ resolution, Enhanced Accuracy
MRM-100A
Up to 100 A (True DC), 0.1 µΩ resolution,
Built-in memory and printer
MRM-200
5 A-200 A (True DC), 0.1 µΩ resolution,
Built-in memory

AC Vacuum Interrupter Test Sets

Designed primarily for vacuum interrupter testing; however, these units can be used for testing breakers, switchgear and many other electrical apparatus.

Model      Output Range
640-0.4P 0-40kVAC, 10mA
660-10PA ±30 kVAC, total of 60 kV, 10mA
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