Pull Cord Switch

  • Square Ramsey Pull Cord switch
  • Square Ramsey Pull Cord switch

Square Ramsey Pull Cord switch

This machine is used for emergency stopping of the tape conveyor in the event of an accident. The switch is a two-way touch type, one end is fixed to the rope pulling bolt, the other end is fixed to the switch arm, the distance from the switch to the fixed point is not more than 25m, the distance between the switches is not more than 30m, when the external force prompts the switch arm lever to turn to the alarm (stop) position, the switch locks, this machine is a manual reset model, after the fault is removed, press the limit lever before it can be reset.

Working principle:

When an emergency occurs at the tape transport site, the wire rope tied to the lug of the pull rope switch can be pulled to control the internal micro-switch action and signal a stop or alarm. The automatic reset model automatically resets when the wire rope is released,

while the manual reset model can only be reset after the reset handle is operated.


Installation and use:

The switch is balanced on the fixing bracket of the frame; 

Tie the wire rope to the pull rings at each end, not exceeding 30 metres on each side

 (to be shortened if there is a gradient);

The rope pressure should be suitable to ensure the reliable reset of the switch;

The pulling rope is arranged in the parallel direction of the tape, and a lifting ring is added every 10 meters;


Technical indicators:

ItemParameters
ModelSquare Ramsey Pull Cord Switch
Ambient temperature

-30℃ - +60℃

Relative humidity≥85%
Angel of action30°
Limit Angle60°
Action force8-12KG
Number of contacts2NO 2NC
Contact Capacity24-380V AC/DC
Reset modeManual Reset

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