How to prove an MCB functions correctly?

Paul Brewerton over 4 years ago

Is there any way of proving that an old Crabtree C50 MCB functions correctly?

Modern equipment comes with certificate of conformity and is traceable, but we are having to use an old breaker in an old board, and would like some confidence that it is actually fit for purpose.

TIA

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0 Former Community Member over 4 years ago

Well, it would be unusual, but you could functionally test the breaker with an injection test (provided you can access a test set that can generate adequate short circuit/earth fault amps). It's reasonably easy to push several kiloamperes through it - it may be more difficult at higher ratings

Regards

OMS
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0 Former Community Member over 4 years ago

Well, it would be unusual, but you could functionally test the breaker with an injection test (provided you can access a test set that can generate adequate short circuit/earth fault amps). It's reasonably easy to push several kiloamperes through it - it may be more difficult at higher ratings

Regards

OMS
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How to prove an MCB functions correctly?

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