The Pilz PZA 30/230VAC 1N/O 2N/C – 774040 is a dependable safety relay designed to monitor protective devices and ensure the immediate disconnection of hazardous machine functions. Built to meet Pilz’s reputation for quality and reliability, this relay combines robust switching performance, auxiliary monitoring capability, and energy efficiency, making it a trusted choice for machine safety across industries.

Operating with a 230 V AC supply, the relay is optimised for standard industrial power systems, ensuring easy integration into existing machinery without the need for additional converters. With a power consumption of only 4.5 VA AC, it provides efficient performance, making it suitable for systems with multiple relays running simultaneously.

The relay offers a versatile contact configuration, consisting of 1 normally open (N/O) safety contact and 2 normally closed (N/C) safety contacts. This combination supports flexible safety functions, such as directly switching off actuators or motors while simultaneously ensuring feedback and redundancy in the circuit. Such versatility allows machine builders to design reliable and compliant safety architectures that meet specific application requirements.

Additionally, the PZA 30 includes 2 auxiliary contacts (delayed), providing extended functionality for system diagnostics and monitoring. These contacts can be used to report system states to higher-level controllers or monitoring devices, improving visibility of safety functions and enabling predictive maintenance strategies.

The relay is also engineered to support compatibility with maximum conductor cross sections specified for industrial cabling, ensuring reliable electrical connections and safe long-term operation. Clear terminal markings and a compact housing design make installation straightforward, reducing wiring time and potential errors.

Durable and built for continuous duty, the PZA 30 is designed to perform in demanding environments where safety relays must operate reliably under frequent actuation. Its robust design ensures a long service life, reducing replacement frequency and maintenance costs.

Typical applications include emergency stop monitoring, protective cover supervision, and integration into safety circuits for packaging machinery, manufacturing systems, process equipment, and material handling lines. By ensuring machines transition immediately to a safe state during emergencies, the relay provides essential protection for operators and equipment.

In summary, the Pilz PZA 30/230VAC 1N/O 2N/C – 774040 is a robust, efficient, and standards-compliant safety relay. With its 230 V AC supply, flexible contact arrangement, auxiliary monitoring capability, and compact design, it delivers a reliable solution for machine safeguarding across diverse industrial environments.