B40 MK 5940s MCB (40A, 1 Pole, 6000A) 40A MCB

This used MK 40A MCB is a 1 pole miniature circuit breaker with a 6kA breaking capacity. All our used, obsolete and discontinued MCBs are fully tested and guaranteed.

Looking for rare or hard-to-find MK circuit breakers? We stock thousands of obsolete and discontinued breakers. Same day dispatch on all orders before 3pm.

Product codes: B40 MK 5940s MCB (40A, 1 Pole, 6000A), MK-5940s

The MK 5940s MCB is a miniature circuit breaker with a current rating of 40A. It is designed for single-pole applications and has a short circuit breaking capacity of 6000A. This product is suitable for use in various electrical installations requiring reliable circuit protection.

All our items are tested, rcd based devices will have a full RCD test report included with the item.

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All products sent via Royal Mail. All items dispatched same working day if ordered before 3pm. See options if next day or faster postage required.