Pilz PSEN 1.1p-20/PSEN 1.1-20 Magnetic Safety Switch, 2NO, 24V DC

The Pilz PSEN 1.1p-20/PSEN 1.1-20 magnetic safety switch is a high-performance component engineered for the reliable monitoring of safety guards and protective doors in industrial environments. By utilizing magnetic technology, this sensor provides non-contact position detection, ensuring that machinery only operates when safety barriers are securely closed. Its robust construction makes it suitable for demanding applications where precision and safety are paramount.

Advantages

This magnetic safety switch offers significant benefits due to its non-contact operating principle, which minimizes mechanical wear and extends the service life of the device. The design is highly resistant to vibration and environmental contamination, ensuring consistent performance even in challenging industrial settings. With its compact form factor and straightforward installation, it integrates seamlessly into existing safety circuits, providing a dependable solution for maintaining compliance with safety standards.

Suitable for

• Monitoring safety gates and protective covers
• Industrial automation systems
• Safety-critical machine guarding
• Environments where mechanical contact is undesirable

When it may not be suitable

This device is not intended for applications requiring high-current switching, as it is designed for signal-level monitoring within safety circuits. It may also be unsuitable for environments with extreme magnetic interference that could disrupt the sensor's operation.

Key specifications

• Contact configuration: 2 normally open (NO) contacts
• Operating voltage: 24V DC
• Technology: Magnetic non-contact sensing
• Application: Position monitoring of safety guards

How to use

The switch consists of a sensor unit and a corresponding actuator. Mount the sensor on the fixed part of the machine frame and the actuator on the moving guard, ensuring they are aligned according to the manufacturer's installation guidelines. Once installed, connect the 24V DC supply and the safety output contacts to your safety relay or control system. The device will detect the presence of the actuator within the specified operating range and close the contacts, enabling machine operation.

What to consider before purchase

• Ensure the safety relay or controller is compatible with 24V DC inputs
• Verify the mounting distance requirements for the actuator
• Check if the environmental conditions are free from strong external magnetic fields

Usage recommendations

Always perform a functional test of the safety circuit after installation to ensure the machine stops immediately when the guard is opened. Regularly inspect the sensor and actuator for alignment and physical damage to maintain safety integrity.