The Pilz PSEN ma1.1p-12/PSEN1.1-10/3mm/ix1/1unit (506412) is a non-contact safety switch from the Pilz PSEN product family, developed to provide reliable, tamper-resistant monitoring of safety gates, machine covers, and movable guards. Its robust design, energy-efficient operation, and wide environmental tolerance make it an ideal solution for safeguarding personnel and machinery in compliance with international safety standards.

Operating at a 24 V DC supply and switching voltage, the PSEN ma1.1p ensures stable integration into modern industrial control systems. Its non-contact principle offers distinct advantages over traditional mechanical interlocks: it reduces wear, eliminates mechanical alignment issues, and extends service life. This makes it especially suitable for applications where guards are opened and closed frequently, such as in packaging lines, robotic cells, and assembly equipment.

The switch is designed for tamper resistance, ensuring that only the corresponding actuator can trigger a valid signal. This significantly reduces the risk of manipulation or bypassing, a key consideration in maintaining operator safety. By delivering reliable monitoring of guard position, the device ensures that hazardous machine movements are stopped as soon as the guard is opened.

A major strength of this unit is its wide ambient temperature range. Capable of operating from -25 °C to +70 °C, it can be used in environments ranging from cold storage facilities to high-temperature production areas. The device also maintains full operational performance at altitudes up to 2000 m, ensuring adaptability to diverse installation sites across industries.

The 3 mm switching distance ensures reliable activation even when guard doors or covers experience slight misalignment due to mechanical wear or vibration. This tolerance improves operational reliability and reduces downtime caused by positioning errors, helping manufacturers maintain higher levels of productivity.

Designed for long-term durability, the PSEN ma1.1p integrates seamlessly with Pilz safety controllers such as PNOZ safety relays or PNOZmulti small controllers, forming a complete safety chain that guarantees immediate shutdown of dangerous machine movements when guards are breached.

Industries that benefit most from this device include automotive, packaging, logistics, robotics, and food and beverage, where reliable guard monitoring is essential to protect both operators and equipment. Its compact and rugged design ensures easy installation, while its non-contact principle provides ongoing reliability with minimal maintenance requirements.

In summary, the Pilz PSEN ma1.1p-12/PSEN1.1-10/3mm/ix1/1unit (506412) is a durable, energy-efficient, and tamper-resistant safety switch designed for modern industrial environments. With its 24 V DC operation, wide environmental tolerance, non-contact monitoring, and compatibility with Pilz safety systems, it offers an effective solution for safeguarding machinery while ensuring high availability and productivity.