1.New design. 2.1,1+N,2,3,3+N, ... for circuit fault indicatingIn case of overload, to protect circuit,MCB handle trips and stays at central position, which enables ... circuit and operational rupturing capacity)Protection:IP40 for a sole MCB with its design, it protects against a hazardous finger or ... :By means of an unique auxiliary snap mechanism, the MCB can be removed even from a row of devices mutually ...