The Pilz PSWZ X1P 0.5V/24–240VACDC COATED (Part No. 777959) is a highly versatile safety relay designed for precise voltage monitoring and reliable machine protection in demanding industrial environments. As part of Pilz’s robust PSWZ range, this relay combines broad supply compatibility, energy-efficient performance, and a protective coating that ensures durability even under challenging operating conditions.

One of the standout features of this device is its ability to operate on a wide supply voltage range from 24 to 240 V AC/DC. This flexibility allows seamless integration into diverse electrical environments without the need for multiple relay variants, making it a cost-effective and practical solution for global machine builders and operators. Whether the system is powered by low-voltage DC or standard industrial AC supplies, the PSWZ X1P ensures consistent safety performance.

With a power consumption of only 5 VA in AC mode and 3 W in DC mode, the unit offers energy-efficient operation. This reduces system load, limits heat generation within control cabinets, and supports long-term continuous use without increasing operating costs. Efficiency is especially valuable in systems where numerous relays operate in parallel, as energy savings multiply across installations.

A critical technical advantage of the PSWZ X1P is its hysteresis-based reset function. The relay uses a defined reset value of Uoff = 2 x Uon, ensuring stable switching behaviour and fault-free recovery. This precision prevents false trips and guarantees reliable machine restart conditions, even in systems subject to fluctuating signals or electrical disturbances. Such functionality is particularly important in safety-related applications, where both unwanted shutdowns and undetected hazards must be avoided.

The coated version of this relay is specifically designed for harsh environments, where exposure to dust, humidity, or corrosive atmospheres could otherwise compromise functionality. The protective coating shields the electronics and enhances long-term reliability, making this variant suitable for industries such as process automation, heavy manufacturing, food and beverage, and outdoor machinery installations.

Installation and integration are straightforward due to its compact design and standardised terminal layout, which minimise wiring effort and reduce commissioning time. Once installed, the relay provides maintenance-friendly operation, backed by diagnostic transparency that simplifies troubleshooting and enhances system uptime.

Applications for the PSWZ X1P coated version include voltage monitoring, machine shutdown functions, process safety, and fault detection in industrial power systems. It is particularly valuable in facilities where environmental factors could impact standard relays, ensuring both operator safety and equipment protection remain uncompromised.

In summary, the Pilz PSWZ X1P 0.5V/24–240VACDC COATED (777959) offers broad supply voltage flexibility, energy-efficient operation, precision reset functionality, and enhanced environmental protection. It is a rugged and reliable safety relay, purpose-built to deliver dependable performance and long service life in even the harshest industrial environments.