BSR Retrofit

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.

Eelktroinvest Switchgear is proud of its heritage in the VSI, VTD & VMV range of switchgear, which continue to work at the highest standards today. Technological advances have allowed us to improve further and offer our customers a circuit breaker that boasts the magnetic actuator.

The BSR circuit breaker, offers a new lease of life for existing switchgear, with this effective retrofit solution. 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 without the need for panel modification.

Key Features

  • Superior, proven 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
  • Improved panel interlocking to latest ENA requirements
  • In addition to the retrofit of the circuit breaker BRUSH Switchgear can offer a more complete system solution to enhance the control and automation of the distribution network


Rated Values kV 12
Normal Rated Currents 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 kA 25 (3 sec)
Rated Auxiliary Voltages V dc 30, 48/50, 110/125
Minimum opening time/closing time ms 33/76
Normal Operations 10,000
Weight Kg 211