Solenoid Interlock Safety Switches


AutomationDirect has expanded its line of safety products to include solenoid interlock safety switches. Solenoid locking tongue interlock safety switches are designed to fit to the leading edge of sliding, hinged or lift-off machine guards and provide positively operated switching contacts. They provide a tamper resistant actuator mechanism and robust position interlock detection for moving guards. 

Available in 30mm, 40mm and 73mm mounting profiles, the switches are designed with multiple actuator entry points and offer adjustable heads with 90-degree and 180-degree options; switch styles provide single and multiple half-inch female NPT conduit openings. Starting at $159, solenoid safety switches are available with 24VDC, 110VAC or 230VAC operated solenoids. Anti-tamper manual release keys and actuator keys in many styles are sold separately, starting at $6.50. Additional accessories available include lockout key, gate bolts, release handles and spring-loaded catch.


  • position interlock detection for moving guards
  • 30mm, 40mm and 73mm mounting profiles
  • multiple actuator entry points
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