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

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Standalone Coded Safety Interlock Switches (Stainless Steel)


The MSA safety switch is designed for high functional safety and can be installed as a standalone device without the need for additional safety monitoring equipment. Equipped with two force-guided mechanical contacts, it maintains PLe, CAT4 (ISO13849-1) safety levels even when connected in series. This makes it an ideal solution for guarding doors in hazardous environments.

The MSA 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 MSA offers a feedback circuit check option for use with reset buttons and external contactor feedback checks.

Manufactured from 316 stainless steel with a mirror-polished finish, the MSA is highly resistant to corrosion and suitable for most detergent wash-down applications. The compact housing design allows for easy installation on 40mm frame sections. Its IP69K rating ensures protection against water ingress and high-pressure water jets.


  • Material: Mirror Polished 316 Stainless Steel
  • Ingress Protection: IP69K
  • Contacts: 2 N/C + 1 N/O (Voltage-Free)
  • Safety Outputs: 2 Force Guided Safety Outputs
  • Output Rating: 3A at 24VDC/240Vac
  • Operating Temperature: -25C to +80C
  • Indication: Dual Colour LED – Green = safety circuits closed / yellow = safety circuits open
  • Connection: Pre-Wired or M12 8 Pole Quick Connect (QC)

  • Standalone Coded Non-Contact Safety Switch (MSA)

    Standalone Coded Non-Contact Safety Switch (MSA)

    The MSA safety switch is a standalone, non-contact device with self-monitoring, force-guided mechanical contacts that maintains high functional safety levels even when connected in series, and it can be installed on guard doors without the need for additional safety monitoring equipment.
    
    
    • Material: Mirror Polished 316 Stainless Steel
    • Contacts: 2 N/C + 1 N/O (Voltage-Free)
    • Safety Outputs: 2 Force Guided Safety Outputs
    • Ingress Protection: IP69K
    • Connection: Pre-Wired or M12 8 Pole Quick Connect (QC)
      Go to Product : Standalone Coded Non-Contact Safety Switch (MSA)

  • Standalone Coded Non-Contact Safety Switch (MSA-D)

    Standalone Coded Non-Contact Safety Switch (MSA-D)

    The MSA-D safety switch is a standalone, non-contact device with self-monitoring, force-guided mechanical contacts that maintains high functional safety levels even when connected in series, and it can be installed on guard doors without the need for additional safety monitoring equipment. The MSA-D requires two actuators to operate, ideal for double door monitoring.
    
    
    • Material: Mirror Polished 316 Stainless Steel
    • Contacts: 2 N/C + 1 N/O (Voltage-Free)
    • Safety Outputs: 2 Safety Outputs (1 Force Guided Relay)
    • Ingress Protection: IP69K
    • Connection: Pre-Wired or M12 8 Pole Quick Connect (QC)
    Note: Comes with two actuators Go to Product : Standalone Coded Non-Contact Safety Switch (MSA-D)