The Crabtree 61/BM2030 B20A Miniature Residual Current Breaker Type A is a white Type B tripping characteristic circuit breaker with overcurrent protection and short circuit protection properties. It is suitable for walls and has a voltage rating of 201-250V. This switch-controlled RCBO has a current rating of 20A. With DIN rail and clip-on mounting styles, this Crabtree circuit breaker offers instantaneous break time and IP20 protection rating, providing reliable protection for electrical equipment and supplies in a commercial or industrial setting.