● Adoption of high-strength A-alloy precise die-casting shell, with strong impact resistant capability.

● High protective degree of shell, good sealing property, dust prevention,water prevention and condensation prevention.

● Great contact capacity, sensitive action and reliable performance.

● Cover the damp-proofing , acid and alkali resistant and flame retardant glass-reinforced plastics wire rope.

● Unique locking way of wire rope, convenient and quick.

● The reset button is simple, reliable and easy to use.