Wago 788-303 Relay Module 12V DC 1-Pole Grey

The Wago 788-303 is a professional-grade 1-pole relay module engineered for industrial automation and control systems. Operating on a 12V DC power supply, this compact unit facilitates reliable signal switching and provides essential electrical isolation between control circuits and field devices. Its robust construction and grey housing are designed for seamless integration into standard electrical control cabinets, ensuring long-term operational stability and consistent performance in demanding environments.

Advantages

This relay module offers high reliability for industrial applications, ensuring precise switching operations whenever required. The compact design allows for efficient use of space within control panels, while the high-quality materials used in its construction guarantee durability and resistance to standard operational wear. By providing effective electrical isolation, it protects sensitive control electronics from potential interference or voltage spikes, contributing to the overall safety and longevity of the automation system.

Suitable for

• Industrial automation and control systems
• Signal switching in electrical cabinets
• Electrical isolation between control and load circuits
• Integration into PLC-based control architectures

When it may not be suitable

This module is designed specifically for 12V DC systems and will not function correctly if connected to AC power or higher DC voltages. It is not intended for high-power switching applications that exceed the current rating of the internal relay contacts.

Key specifications

• Operating voltage: 12V DC
• Configuration: 1-pole
• Colour: Grey
• Dimensions: 15 x 86 x 54 mm
• Weight: 45.86 g

How to use

The Wago 788-303 is designed for mounting on standard DIN rails within a control cabinet. Ensure the power supply is disconnected before installation. Connect the control signal wires to the input terminals and the load circuit wires to the output terminals according to the wiring diagram provided by the manufacturer. Once securely mounted and wired, verify the connections before restoring power to the system.

What to consider before purchase

• Verify that your control system operates on a 12V DC supply.
• Ensure the physical dimensions fit within your existing control cabinet layout.
• Check that the 1-pole configuration meets your specific switching requirements.

Usage recommendations

Always ensure that the relay module is installed in a clean, dry environment within a protected enclosure to prevent exposure to moisture, dust, or extreme temperatures, which could affect the performance of the electrical components.