SWR 12

South Wales Switchgear Retrofit

The SWR12 is an OEM designed vacuum retrofit circuit breaker for both the South Wales Switchgear ‘C & D’ range, including the C4X and D4X, Oil Circuit Breaker and the HawkGas12 Gas Circuit Breaker, to IEC 62271-100.

Employing magnetic actuator technology with vacuum interrupters, the SWR12 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.

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Click here for an example of how the SWR12 has benefited Western Power Distribution.

Features | Ratings | Applications

SWR 12


  • 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 or SF6 gas.
  • 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 Hawker Siddeley Switchgear can offer a more complete system solution to enhance the control and automation of the distribution network.

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