This Crabtree B40 61/B40 MCB Circuit Breaker is designed for electrical wiring applications in interior spaces. Made in the United Kingdom, it operates on a voltage of 201-250 V with a current rating of 31-40 A. The control style is a simple On/Off switch, with features like thermal overload protection for added safety. This MCB circuit breaker is suitable for use in any room and provides reliable protection for electrical systems. Free postage is included with this product.