BSR - Coming Soon

The BSR is an OEM designed retrofit circuit breaker for both the Brush Switchgear VSI range of Oil Circuit Breakers and the VMV vacuum Circuit Breaker, to IEC 62271-100.

Employing magnetic actuator technology with vacuum interrupters, the BSR is designed for 10,000 operations and a life expectancy of 30 years. It is designed for retrofitting into existing switchboards with minimal panel modification.

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  • Superior, proven 'Fit & Forget' technology with minimal maintenance
  • Remove the need for high capacity auxiliary supplies
  • No civil works required and existing HV cabling remains undisturbed
  • Improvement of Health & Safety by removal of Oil
  • Considerable life extension of the existing switchgear
  • Lower owner costs through virtually no maintenance requirements and increased switchboard life expectancy
  • Uses existing design of primary and automatic secondary contacts
  • In addition to the retrofit of the circuit breaker Hawker Siddeley Switchgear can offer a complete system solution to enhance the control and automation of the distribution network


Normal Rated Current A 630, 1250, 2000
Rated Voltage kV 12
Lightning Impulse Withstand Voltage kVP 75/95
Short Duration Power Frequency Withstand Voltage kV 28
Rated Frequency Hz 50
Rated Short-Time Withstand Current kA 25
Rated Peak Withstand Current kA Peak 62.5
Rated Duration of Short Circuit Seconds 3
Making Current (peak) kA 62.5
Symmetrical Breaking Current kA 25
Rated Short-Time Current (3 sec) kA 25
Rated Auxiliary Voltages V dc 30, 48/50, 110/125
Minimum opening time/closing time ms 33ms/76ms
Normal Operations   10,000
Weight Kg 211



The BSR has a wide range of applications:

  • Primary distribution
  • Secondary Substation applications
  • Utilities
  • Transport applications
  • Building Services
  • Light Industrial
  • Commercial
  • Education
  • Hospitals
  • MOD

get in touch

Contact HSS

+44 (0)1495 223001

+44 (0)1509 611511

+ 61 7 3888 2333

what we've done

case studies

SSEN - Horizon Framework

Electricity Northwest Ltd - MediPark