Leading Manufacturer of Safety Interlock Switches and Machine Guard Safety Switch Devices for Automation and Process Safety

Trapped Key Power Isolation Switch with Solenoid Controlled Key Release (M-ISP-SKR)

The M-ISP-SKR is used for isolating hazardous electrical energy. The key is held in place by a solenoid and only when energised can the switch be turned to the OFF position, isolating the electrical current and allowing the key to be removed. The M-ISP-SKR is designed to be mounted directly into the panel.

  • Die-Cast Metal Barrel and Stainless Steel Mounting Plate
  • 4-Pole Capable of Switching 690V at 25A, 40A or 63A
  • 2 N/C + 1 N/O Monitoring Contact Block
Part No.Part Description
M-ISP-SKR-25Solenoid Release Isolation Switch Panel Mount 25A 4 Pole – Die Cast Barrel
M-ISP-SKR-40Solenoid Release Isolation Switch Panel Mount 40A 4 Pole – Die Cast Barrel
M-ISP-SKR-63Solenoid Release Isolation Switch Panel Mount 63A 4 Pole – Die Cast Barrel

Key sold separately.
Optional auxiliary signal contact block (AUX-ISP) can be purchased to indicate the isolator status.

Technical Data
Barrel MaterialDie-Cast Metal
Isolator Block SpecificationsSee data sheet or technical drawings
Mechanical Life (B10d)1,000,000 cycles
Ambient temperature-20 ... +40 °C
Solenoid wattage10Watt (24V)