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

  • Material: High specification polyester
  • Ingress Protection: IP67
  • Contacts: 2 N/C + 1 N/O (Voltage-Free)
  • Safety Outputs: 2 Force Guided Safety Outputs
  • Output Rating: 3A at 24VDC/240Vac
  • Dual Colour LED – Green  / yellow
  • Pre-Wired or M12 Quick Connect

Standalone Coded Safety Interlock Switches (Plastic)

The PSA are magnetically coded safety switches designed to provide a high level of functional safety. They can be installed as a standalone device without the need for additional safety monitoring equipment. Equipped with two force-guided mechanical contacts, they maintain PLe, CAT4 (ISO13849-1) safety levels, even when connected in series. This makes it an ideal solution for guarding doors in hazardous environments.

The PSA incorporates an internal self-monitoring system that checks the operational status of both relays after every safety demand. If one relay fails or becomes inoperative, the switch will immediately lock out for added safety.

Additionally, the PSA offers a feedback circuit check option for use with reset buttons and external contactor feedback checks.

The PSA is constructed using red polyester material, which offers good tensile strength, excellent resistance to abrasion, and high durability against environmental factors such as UV rays and moisture.