Patent ID: 8872607

Claim:
A method of controlling operation of a safety switch assembly comprising: providing a safety switch assembly that controls communication of operating power to an industrial device; providing the safety switch assembly with a magnetically responsive electrical switch; providing the safety switch assembly with a magnetisable material; and providing an actuator with a magnet that alters a magnetic property of the magnetisable material when the actuator is engaged with the safety switch so that the magnetic property of the magnetisable material alters a condition of the magnetically responsive electrical switch and a position of a plunger of the safety switch is mechanically altered when the actuator is engaged with the safety switch assembly such that a conducting condition associated with the operating power changes as a function of the position of the plunger and the condition of the magnetically responsive switch only when the actuator having the magnet that alters the magnet property of the magnetisable material is engaged with the safety switch assembly.