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Insert one or more keys to exchange one or more keys，key exchange box is a connection unit between Isolate equipment and door lock, and form key interlock logic between equipment which need to isolate and area which need to protect.
FTS safety mechanical interlock-Key exchange box XL4-2 is composed by interlock unite, interlock unite has high integration and reliability, has widely apply in power system. It is made of stainless steel, lock core made in unsprung blade type, could ensure key rotate and plug operation for 1 million, could provide different lock core password combination for 60 thousand. Interlock unite
open flexible, key could insert in both direction, resistance to high temperature and corrosion, could apply to any worse environment.
