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Can anyone tell me where I can find the breaking capacities of Crabtree BS3871 type 1 MCB's. The installation has to be 20+ years old and there are no Device designation marks on the breakers themselves :confused5:
Discuss Crabtree Breaking capacity in the UK Electrical Forum area at ElectriciansForums.net
MCB's used to be designated from M1 to M9. The numeral designates the breaking capacity.
eg ...M6 = 6 KA
Reply to Crabtree Breaking capacity in the UK Electrical Forum area at ElectriciansForums.net
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