1. Product name: FZRN21-12D indoor vacuum load break switch
2. Rated voltage 12KV, AC 50Hz

FZRN21-12D indoor vacuum load break switch and fuse combination apparatus applies to power system of rated voltage 12KV, AC 50Hz. It distributes power, control and protect electric apparatus. The apparatus replace expensive VCB to service in electricity network. It can also be used in rural and unban power supply systems to break and make under rated current and short-circuit current when the circuit breaks down. It is also applicable to control and protect transformers.