• Monitor breakers with up to 4 breaks per phase with motion measurements
  • Detect main and pre-insertion resistor engagement and timing on all 12 channels
  • Record up to three analog and three digital customer definable parameters
  • Create and manage custom circuit breaker test plans with T-Doble software
  • Measure additional parameters in the mechanism cabinet using Doble or 3rd party transducers
  • Know that your breakers can and will perform when they are needed
  • Easily detect main contact and resistor contact timing errors
  • Control with a Doble Universal Controller (DUC), tablet or PC

T-Doble Software

  • Control and operate your TDR900 to make and compare breaker timing measurements, validate time of operation, and verify manufacturer specifications
  • Operate, record and maintain specified tests and their respective files
  • Create and manage circuit breaker test plans
  • Plot, overlay, analyze and print data
  • Maintain test plan library for families of circuit breakers and associated mechanisms

Circuit Breaker Seminar Test & Maintenance Training



Circuit Breaker Accessories

Doble Engineering Company

Doble Engineering Company