DH1, DH2 isolation for the reversing switch to switch, HG-315/1140 isolation 
 Series of low-voltage isolation reversing switch applies AC 50 HZ, rated voltage up to 600V, rated current to 200A circuit, breaking the no-load conditions, and closed circuit in case of emergency with a load break the circuit. Addition to the function of the isolating switch, the switch can also change in the no-load conditions outlet Duanxiang sequence for the reversible conversion, especially suitable for vacuum, air electric drill starter switch commutation, isolation.