IDEC Corporation HS7A-DMC5912Product Attribute Attribute Value Actuator Type Magnet Contact Form NO, NC Series HS7A Series Termination 2 m Cable Overview HS7A DMC Non contact magnetic safety interlock switches perform the same functions as standard mechanical safety interlock switches, but are designed to be used in applications where non contact is desired between the switch and its actuating key. It's also being used where space is at a premium. It's also very light weight only