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Leaderman MCB RCD 10 Circuit Breaker Lock Offs. Leaderman Products. RCD Testers. To use, firstly attach the MCB Lockout to the circuit breaker, then use a screwdriver to make sure it doesn't fall off the circuit breaker.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.