CONTACTUM B6303/2 63 AMP 30mA RCD TYP AC RCCB RCCD

The CONTACTUM B6303/2 is a white, Type AC circuit breaker with a tripping characteristic of safety switch/residual-current device (RCD) designed for wall mounting in an interior room. It has a maximum amperage of 80A and a current rating of 63A, suitable for AC electrical wiring. The DIN rail mounting style and screw terminal electrical connection make it easy to install,

eBay