The Pilz PZE 9 110–120VAC 8N/O 1N/C (Part No. 774143) is a high-performance safety relay designed for monitoring and controlling essential safety functions in industrial automation. With its powerful output configuration, dual-channel input monitoring, and compliance with international safety standards, the PZE 9 is a trusted choice for ensuring operator protection and machinery safety.

Operating on a 110–120 V AC supply, the relay is optimised for use in regions and industries where this voltage standard is common. Its power consumption of just 7 VA ensures reliable yet efficient operation, making it suitable for continuous use in demanding production environments.

The relay supports dual-channel input monitoring, with two inputs that provide redundancy and fault detection. This configuration allows for safe monitoring of devices such as emergency stop buttons, guard doors, enabling switches, or light curtains. The dual-channel system detects cross faults, wiring errors, or input failures, ensuring machinery cannot operate unless safety conditions are fully satisfied.

A key strength of the PZE 9 lies in its extensive output configuration. With 8 normally open (N/O) safety contacts, it is capable of safely disconnecting multiple actuators, contactors, or machine sections simultaneously. This makes it ideal for complex installations where multiple safety-related outputs must be controlled at once. In addition, the relay includes 1 normally closed (N/C) contact, which is typically used for feedback or signalling to a controller, HMI, or diagnostic system. This auxiliary contact enhances system transparency and allows operators to monitor relay status effectively.

The relay is designed to comply with EN 60947-4-1 (utilisation categories AC/DC1), ensuring it can reliably switch resistive loads and maintain performance in standard industrial switching environments. Its rugged internal design and high-quality components provide long service life, even under frequent operation, minimising downtime and reducing maintenance needs.

Installation is straightforward thanks to the compact design and clearly marked terminals, which simplify wiring and reduce commissioning time. Once installed, the PZE 9 provides consistent and maintenance-friendly operation, offering both safety and efficiency for plant operators and machine builders.

Typical applications for the PZE 9 include manufacturing, automotive, robotics, packaging, and material handling, where multiple safety outputs must be controlled simultaneously. It is particularly valuable in larger or more complex machinery setups that require robust shutdown capabilities and clear signalling.

In summary, the Pilz PZE 9 110–120VAC 8N/O 1N/C (774143) combines flexible dual-channel input monitoring, high-output switching capacity, energy-efficient AC operation, and compliance with international standards. It is a dependable safety relay engineered to protect operators and machinery while supporting efficient and safe operation in demanding industrial environments.