The Wylex B40 40A NHXSBS1B40 Curve B Single Pole RCBO is a white, 40 amp circuit breaker suitable for wall mounting in interior spaces. It features a Type B tripping characteristic, overload protection, and two screw terminals for electrical connection. This GFI circuit breaker has an instantaneous break time and is designed for electrical wiring applications. The DIN rail mounting style and switch control make it easy to operate and maintain in a variety of electrical systems. Free postage adds value to this reliable and efficient circuit breaker from Wylex. used in good working order
eBay