The Pilz PSENME1S/1AR (manufacturer's part number 570001) is a mechanical safety switch specifically developed for the safe monitoring of movable protective devices in industrial environments. It functions as a safety door system with integrated latching and is equipped with a radius actuator that enables precise and reliable actuation. The latching mechanism is based on spring force, ensuring the door is securely held in the closed position. The switch features two normally closed and two normally open contacts, which can be used to control safety functions in machines and systems. The supply voltage is 24 V AC/DC, allowing flexible integration into existing control systems.

Applications
This switch is designed for use in industrial environments, particularly in machine building, manufacturing technology, and automation technology. It is used to safely monitor movable protective devices such as safety doors, grilles, or covers. The latching mechanism ensures that the door is only locked when fully closed, enhancing the safety of operators. Operating conditions include ambient temperatures from −25 to +70 °C, enabling use in production environments with varying climatic conditions.

Functions and Features in Detail
The switch operates with a radius actuator, ensuring smooth and jerk-free actuation of the contacts. Latching is achieved via spring force, providing a high latching force of 1,500 N. The extraction force is 27 N, defining the mechanical load capacity of the system. The contacts are configured as 2 n/o (normally open) and 2 n/c (normally closed), allowing flexible integration into safety circuits. An auxiliary unlocking feature is included to enable manual unlocking in emergencies without fully disabling the safety function.

Technical Details Explained Simply
The 24 V AC/DC supply voltage allows universal use in various control systems. Power consumption is 4.4 VA for AC and 4.4 W for DC, ensuring efficient energy use. The contacts are rated for a nominal voltage of 240 V (AC1) and 230 V (AC15), with a maximum current of 2.5 A in both cases. The IP67 protection rating means the enclosure is dust- and waterproof, suitable even for outdoor use. The enclosure is made of plastic and features an M20 cable gland, enabling secure and waterproof connection of the wiring. Connections are made via terminals, ensuring easy and reliable wiring.

Compatibility and Accessories
The switch can be combined with various accessories to extend its functionality. These include, for example, the M12-5sm cable in various lengths (3 m, 10 m, 20 m, 30 m) and the PSEN cable 200m-8x0,25mm², suitable for longer connections. Also available is the E/A module PDP67 F 8DI ION, which extends input and output functions. Additional compatible components include the PSEN me1AS and the PSENmag PAA, which can be used for additional safety functions.

Mounting and Installation
Mounting is done on the safety door or protective grille, positioning the radius actuator so that it is correctly actuated during the closing motion. The latching mechanism ensures the door is only locked when fully closed. The connection cables are routed through the M20 cable gland and connected to the terminals. Installation does not require special tools, but careful planning of positioning and cabling is necessary to ensure functional reliability.

Operational Advantages
The switch offers high mechanical durability due to the spring-force latching mechanism and reliable contact transmission. The IP67 protection rating makes it suitable for harsh environments, and the 24 V AC/DC operating voltage allows easy integration into existing systems. The auxiliary unlocking feature provides additional safety during maintenance work. The combination of mechanical reliability and electrical safety makes this switch a robust solution for industrial applications.

Additional Information
The product is certified with CE, BG, EAC, CCC, and cCSAus, confirming compliance with European and international safety standards. Dimensions are 184 × 42.5 × 51 mm, and the net weight is 335 g. The delivery includes only the switch itself; no additional components such as cables or mounting materials are included.