This is a 6 Amp single pole circuit breaker. This is a suitable replacement for previous 6 Amp single pole MCBs. These will provide excellent protection for your electronic circuits from damage when faced with an overload or short circuit. A MCB is a Mini Circuit Breaker, these are mainly for household and small commercial use. This is a Type C Memshield, this will work well with or as a suitable replacement for other type c circuit breakers This is a single pole circuit breaker that that will work with other memshield products. This Memshield 6 Amp circuit breaker comes with a 1 year guarantee, as do all of our products on electricals247.co.uk.