Pilz 777150 PZE X5P 24VDC Safety Relay: Contact Expansion Module for Industrial Safety

Product Overview

The Pilz 777150 PZE X5P 24VDC safety relay is a high-performance contact expansion module engineered for seamless integration with safety-related control components. As part of the trusted PNOZ X series, this module is designed to expand existing safety circuits by providing additional output contacts. It is widely used in industrial automation environments where machine safety and reliable emergency stop monitoring are critical. The unit supports both single channel and dual channel input wiring configurations, with optional detection of shorts across contacts, ensuring maximum flexibility for various safety applications.

Key Features of Pilz 777150

This contact expansion module features 5 normally open (N/O) instantaneous safety contacts and 2 semiconductor outputs, making it suitable for expanding the contact capacity of existing safety relays. The module operates with a rated supply voltage of 24 V DC and has a compact width of 45 mm, allowing efficient use of space within a control cabinet. It utilizes plug-in screw terminals for secure and straightforward electrical connections. The device includes semiconductor outputs that provide status signaling, enabling the monitoring of the switch status of each channel, which facilitates diagnostics and maintenance.

Technical Specifications

• Manufacturer: Pilz

• Part Number: 777150

• Product Name: PZE X5P 24VDC 5n/o 2so

• Supply Voltage: 24 V DC

• Input Configuration: 1 or 2 channel wiring with or without short circuit detection across contacts

• Output Configuration: 5 normally open (N/O) instantaneous contacts, 2 semiconductor outputs

• Width: 45 mm

• Connection Type: Plug in screw terminals

• Mounting Type: DIN rail

• Net Weight: Approx. 260 g

Functional Description

The Pilz 777150 safety relay functions as a contact expansion device that is connected in series with a base safety relay to increase the number of available safe output contacts. It is used to monitor emergency stop circuits, safety gates, light curtains, and two hand controls. The module provides reliable isolation and switching of safety signals while maintaining the required safety integrity level for industrial machinery. The integrated semiconductor outputs deliver status feedback, allowing the higher level control system to verify the operational state of the relay. This functionality is essential for implementing Category 3 or Category 4 safety circuits according to ISO 13849 1 standards.

Wiring and Installation

The Pilz 777150 is designed for simple installation onto a standard DIN rail within an electrical enclosure. It features plug in screw terminals that accept solid or stranded conductors, ensuring reliable electrical connections. The wiring diagram includes clearly labeled terminals for input circuits, output contacts, and the power supply. For dual channel applications, the module can be configured with or without cross circuit detection, depending on the required safety level. It is essential to follow the installation guidelines provided in the product manual to ensure correct operation and compliance with safety regulations.

Applications

This safety relay is suitable for a wide range of industrial automation applications, including packaging machinery, conveyor systems, robotic cells, and material handling equipment. It is particularly useful in systems requiring multiple safety contact expansions when a single safety relay does not provide sufficient output capacity. The Pilz 777150 PZE X5P is also employed in retrofitting older machinery to meet current safety standards without replacing the entire control infrastructure.