Safety Switches

Critical hardware designed to protect personnel by instantly interrupting power during emergency situations or when machine guards are breached.

Pilz | PSENmech & PSENcode

Pilz is synonymous with “The Spirit of Safety.” They practically invented the safety relay and continue to lead with their PSEN (Pilz Sensor) range. They are the primary choice when you need to meet the highest safety levels (PL e or SIL 3) in complex pharmaceutical, automotive, or robotic cells.

PSENmech

Model Number: 540010

High extraction force (up to 1,500 N); mechanically coded actuators; up to 4 approach directions.

Key Technical Specifications:

  • Features a strong mechanical latch that prevents safety gates from vibrating open unintentionally, ensuring high plant availability.

  • The head can be rotated to allow the actuator to enter from either the side or the top, making it compatible with both sliding and hinged doors.

  • Housed in a dirt-insensitive, dust-tight, and waterproof (IP67) enclosure designed for millions of switching cycles.

PSENcode

Model Number: PSEN SL-0.5P 1.1

Unique RFID coding (tamper-proof); integrated diagnostics via LED; slim, space-saving design.

Key Technical Specifications:

  • Uses unique or fully unique RFID coding, meaning the switch can only be triggered by its specific paired actuator—it cannot be “cheated” with a spare key.

  • Supports “Safe Series Connection,” allowing up to 32 sensors to be wired together to one evaluation device without losing the safety integrity level.

  • Being non-contact, there is no mechanical wear or friction, making it ideal for high-speed automated lines where mechanical keys would eventually snap.

Schmersal | AZ & AZM Series

Schmersal is a specialist in “Safety Technology for Every Environment.” Their catalog is famous for its breadth, offering everything from tiny switches for 3D printers to massive, heavy-duty interlocks for mining conveyors. They are particularly sourced for their AZ series, which is a global industry standard for mechanical guard monitoring.

AZ 16

Model Number: AZ16-12ZI-B1

Individually coded; high level of contact reliability; insensitive to soiling; compact dimensions.

Key Technical Specifications:

  • Offers various coding levels to comply with EN ISO 14119, preventing operators from bypassing safety protocols with simple tools.

  • Can be ordered with an “Ejection Force” that physically pushes the door open slightly when unlocked, providing a clear visual that the gate is open.

  • Features three cable entries (M16 or M20) or M12 connectors, allowing for easy cable routing regardless of the mounting position.

AZM 161 / 400

Model Number: AZM161-B6

Guard locking (holds door shut until machine stops); 2,000 N to 10,000 N locking force; Power-to-Lock/Unlock.

Key Technical Specifications:

  • Ensures that a heavy machine with “run-down time” (like a large saw) cannot be opened until the hazardous motion has completely stopped.

  • The AZM 400 model offers a massive 10,000 N of locking force, making it nearly impossible for a door to be forced open even in high-stress environments.

  • Equipped with a manual release or “Emergency Exit” handle on the inside, ensuring personnel cannot be accidentally locked inside a robotic cell.

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