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P&B’s range of Whipp & Bourne replacement circuit breakers and contactors have been designed for total reliability. Utilising a new vacuum contactor and the ABB VD4 vacuum circuit breaker, our Whipp & Bourne retrofits are relied upon for achieving trouble-free performance over many thousands of maintenance free operations.
Utilising many parts from the original truck, including the original frame, contact arms, racking and interlock mechanism, the Type AK replacement contactor fits perfectly into your existing cubicle with no alterations. All current carrying parts are fully refurbished and re-plated. The unit is completely re-wired to your specific requirements. Many options are available for this unit, often above your original specification.
Retrofit Circuit Breaker Type AK Ratings | ||
---|---|---|
Maximum System Voltage | kV | 3.3 |
Rated Power Frequency Withstand | kV | 10 |
Basic Impulse Level | kVp | 40 |
Normal Rated Current | A | 400 |
Short Circuit Breaking Current | kArms | 10 |
Mechanical Endurance Performance | >10,000 Operations |
Utilising many parts from the original truck, including the original frame, contacts and interlock mechanism, the Type AH replacement circuit breaker fits perfectly into your existing cubicle with only minimal alterations to the existing front door. All current carrying parts are fully refurbished and re-plated. The unit is completely re-wired to your specific requirements. We also offer full cubicle refurbishment including CT and protection upgrade specific to your requirements either on site or factory finished units. A full installation and commissioning service is always available.
Retrofit Circuit Breaker Type AH Ratings | ||
---|---|---|
Maximum System Voltage | kV | 3.3 |
Rated power Frequency Withstand | kV | 10 |
Basic Impulse Level | kVp | 40 |
Normal Rated Current | A | 630 to 1600 |
Short-Time Current | kA 3secs. | 26.3 |
Peak Making Current | kAp | 67 |
Mechanical Endurance Performance | >10,000 Operations |
P&B is a leading UK innovator of electrical protection, safety and control technologies.
Our specialist expertise and unrivalled experience is relied upon in heavy industries throughout the world to ensure the highest levels of safety and performance.