Supply voltage (V): 24 V
Type of supply voltage U1: DC
Switching voltage: 24 V
Ambient temperature: -25 – 70 °C
Max. ambient temp. at 2000 m: +70 °C

Reliable 24 V DC Supply: Operates consistently with a stable 24 V DC supply voltage, ensuring dependable integration into industrial safety systems.
Robust Environmental Resistance: Wide ambient temperature range from -25 °C to +70 °C allows use in challenging conditions and high-altitude applications up to 2000 m.
Precise Switching Functionality: Optimised for 24 V switching voltage, enabling accurate monitoring of guard positions in automated systems.
Integrated LED Indicator: Built-in LED provides clear visual status indication, simplifying diagnostics and maintenance.

The Pilz PSEN 2.1P-21/PSEN 2.1-20/8MM/LED/1 – 502221 is a high-performance safety switch designed to deliver reliable position monitoring and protection in automated environments. Built with the renowned precision of Pilz safety technology, this switch is ideally suited for safeguarding machinery, protecting operators, and ensuring compliance with international safety standards.

Engineered to operate on a 24 V DC supply, the PSEN 2.1P-21 offers stability and compatibility with modern industrial control systems. Its dependable switching voltage of 24 V ensures consistent performance, enabling accurate detection of guard positions, covers, or access doors. This makes it particularly valuable in environments where safety interlocking and controlled shutdowns are critical.

A standout feature of this model is its integrated LED indicator, which provides a clear and immediate visual signal of the switch status. This reduces downtime by allowing operators and maintenance personnel to diagnose issues quickly without the need for additional tools or complex checks. The LED functionality supports proactive maintenance, making the switch both efficient and user-friendly.

Durability is a defining characteristic of the PSEN 2.1P-21. With an operating temperature range from -25 °C to +70 °C, the switch is capable of performing reliably in harsh industrial settings, including cold storage facilities, outdoor machinery, and high-temperature production lines. Moreover, it is designed to maintain its full operating capability at altitudes up to 2000 metres, ensuring flexibility for installations across a wide range of applications and geographic conditions.

Pilz has engineered this safety switch with robustness in mind. Its design ensures long service life, even under frequent actuation, making it suitable for industries where reliability and uptime are essential. Typical applications include packaging machinery, robotics, assembly lines, and other automated systems where safety and operational continuity must go hand in hand.

The PSEN 2.1P-21/PSEN 2.1-20/8MM/LED/1 – 502221 combines the trusted safety standards of Pilz with practical features that enhance ease of use. From the integrated LED to its wide environmental tolerance, it delivers not only protection but also efficiency in day-to-day operations.

In summary, this Pilz safety switch is a robust, reliable, and user-friendly solution that safeguards machinery and operators while reducing downtime through intuitive diagnostics and durable design.