WAGO Interface Relay 4PDT DIN Rail Mount 24V DC Coil, Plug-In, Silver Alloy Contacts, 858-304

The WAGO 858-304 Interface Relay is a high-performance electromechanical relay designed for industrial automation and control systems. Featuring a 4 pole double throw (4PDT) contact configuration, this relay is ideal for switching multiple circuits simultaneously, providing maximum flexibility in complex control circuits. It is specifically engineered to be mounted on a standard DIN rail, enabling rapid installation within control cabinets and panels.

This relay operates using a 24V DC coil, ensuring efficient and reliable switching in environments where low-voltage control is preferred. The plug-in terminal design streamlines the process of installation, maintenance, and replacement, reducing overall downtime and facilitating field serviceability. Silver alloy contacts are utilized to deliver excellent electrical conductivity and extended service life, even under demanding switching conditions.

The WAGO 858-304 can switch loads of up to 36.9mA and is rated for up to 250V AC switching voltage, providing robust performance across a range of electrical control applications. With compact dimensions of 31mm length, 31mm width, and 97mm height, it can be integrated into panels where space is at a premium. The device is suitable for operation in challenging environments, supporting an operating temperature range between -25°C and 70°C, which ensures reliable functionality in industrial, building automation, and infrastructure projects.

This interface relay meets several international standards and approvals, including UL 508, EN 61810-1, EN 60664-1, and maritime certification 858-304:GL. Its plug-in design, draw-out replaceability, and DIN rail compatibility make it an industry-standard solution for signal isolation, amplification, and interfacing in PLC, DCS, and other logic systems.

Common use cases include manufacturing automation, process controls, HVAC systems, building management systems, and industrial machinery, where safe and effective relay operation is critical. WAGO's proven reliability in harsh environments and demanding applications is evidenced by the robust construction and the quality of materials used.

For engineers and panel builders, the WAGO 858-304 Interface Relay streamlines wiring, enhances system reliability, and reduces maintenance effort, establishing itself as a preferred choice for professional installations.

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