Hydraulic-Magnetic Circuit Breakers

CBI Hydraulic Magnetic Circuit Breaker

Hydraulic-magnetic circuit breaker has unique operating principle that differs far more than classic thermal-magnetic circuit breakers. These series have advantageous features in compare to the classic thermal-magnetic circuit breakers. In these models, nominal current value has been secured even at changing ambient temperatures. However, in thermal-magnetic models, nominal current value has been varying according to the changing ambient temperatures which is resulting in critical faults.

  • Circuit breakers can carry 100% of rated current independent of ambient temperature
  • Do not require de-rating for temperature
  • Always trip at 125% of rated current independent of ambient temperature
  • Immediate resetting after trip
  • Any current rating possible, even fractions of amperes
  • Large range of time delays available
  • Can mount a large number of circuit breakers side by side

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