HSC® 95 Safety Edge
HSC® 95 Contact Chain® is built up of current conducting contact rollers and insulating intermediate elements (wedge rollers) alternately lined up on a so-called expander cord. By pretension, the contact rollers are pressed together, and the current circuit is made. Actuation of the safety edge leads to at least one pair of the contact rollers to separate by action of the wedge-shapedintermediate elements, and the current circuit is broken. Since a circuit interruption signal is directly available, transformation of the output signal is not required. This signal is fed to the safety relay unit already needed for the E-stop button. The sensor portion in the safety edge is immediately behind the front of the rubber profile. The separation of the contacts is not caused by a bending of the Contact Chain, but by a transformation of external radial forces into axial forces.