Schmersal ZQ900 series emergency pull-wire switches

The Schmersal ZQ900 series of pull-wire switches offers robust emergency stop solutions for use along the length of conveyors or similar types of installations. The die-cast body of the switch provides good protection from harsh environmental conditions, while an external watertight collar with IP65 ingress protection ensures the range is suitable for use in a variety of applications from mining conveyors to packaging systems.

Integrated safety features include an emergency stop button on the front housing of the switch, giving full emergency stop functionality across the entire protected area. Wire-pull and breakage detection ensures the system remains operational at all times.

Installation is made easier by the addition of three M20 cable entries on both sides, and at the back of the switch body, while the tension can be set by a transparent indication window on the front of the housing. Up to 75 m can be covered by one single switch when using a tensioning spring. An LED indication is optional to provide status indication for installations of more than one device.