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Relay and Optocoupler Modules

Functionality in a Wide Range of Applications:

Whether relay sockets or pluggable relay and optocoupler modules, WAGO's array of relays and optocouplers offer a solution for any requirement. Use them in any sector of industry including process technology and power engineering, railway applications and machine engineering, as well as general control cabinet construction.


Your benefits:

  • Large range of coupling and timer relays
  • Easily connect conductors from 0.34 to 2.5 mm2 (22–12 AWG) without preparation
  • Switchable loads from 1 mA to 16 A (e.g., lamp loads)
  • Wide range of accessories (e.g., adjacent jumpers, markers, system cables)
  • Easy to operate and service

Product Overview

Our Relay and Optocoupler Module Products

Brief Current Peaks with Fatal Consequences

When lighting systems switch on, significant current spikes occur that can far exceed 100 times the nominal current. Even if this current is only present for a few milliseconds, it can cause the relay contacts to fuse.

Here you’ll learn how our relays work so you can enjoy your system for a long time.

Long Cable Lengths in Large Systems

In this video, you’ll see how sensor signals are transmitted in large systems with long cables through the example of a sewage treatment plant. In this application, WAGO relays with RC base load modules minimize unwanted voltages with low losses. In addition, they make defined switching behavior possible in order to keep large systems functioning perfectly.

Relay Sockets with a Miniature Switching Relay (788 Series)

WAGO's 788 Series Relay Sockets are ideal for switching applications in both industrial and process automation. These modules can be used either with two channels or for reliably switching higher loads (e.g., lamp loads) up to 16 A.

Advantages:

  • Quick and simple elementary relay replacement after a failure
  • Compact housing: just 15 mm (0.590 inch) wide
  • Commoning options on both control and load side
  • Tool-free connection via Push-in CAGE CLAMP®
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Relay Modules with a Miniature Switching Relay and Optocoupler Modules (859 Series)

WAGO's 859 Series Relay Modules with a Miniature Switching Relay and Optocoupler Modules are ideal for any industrial interface applications. Their slim design saves valuable control cabinet space. Simple commoning at the control and load side streamlines looping through of common input and output potentials.

Advantages:

  • Versatile relay modules for AC and DC applications
  • Slim 6 mm (0.236 inch) housing saves space
  • Low-profile design for optimum use in terminal boxes
  • Front-side jumpers streamline connections
  • Top-of-unit LED for status signal indication
  • Proven CAGE CLAMP® connection technology
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Pluggable Relay Modules (2042 Series)

WAGO's 2042 Series Pluggable Relay Modules plug directly onto the carrier terminal blocks from the WAGO TOPJOB® S Rail-Mount Terminal Block System for easy and secure installation. This combination of rail-mount terminal blocks and relay modules saves the user an extra wiring level.
Incredibly robust, the 2042 Series Modules withstand high vibration and shock loads, and meet both DIN EN 61373 (vibration and shock) and DIN EN 50121-3-2 (EMC) railway standard requirements.

Advantages:

  • Pluggable for WAGO Rail-Mount Terminal Blocks TOPJOB® S
  • Input voltage ranges from 16.8 V to 253 V
  • Designed for a temperature range of −40°C to +70°C
  • Ideal for railway and industrial applications thanks to EN 50155 and EN 61010 (safety regulations for electronic devices)
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DIN-Rail-Mount Carriers with a Miniature Switching Relay (287/288 Series)

WAGO's fully wired DIN-rail-mount carriers with a miniature switching relay (287/288 Series) provide direct, in-the-field switching of actuators and other coupling elements. They also permit fast and easy peripheral signal connections.

Advantages:

  • Faster and easier connection of peripheral signals
  • Pluggable relays for rapid and simple replacement
  • Easily connect conductors ranging from 0.08 to 2.5 mm2 (28–14 AWG)
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Relay Modules in a DIN-Rail-Mount Enclosure
(789 Series)

WAGO's 789 Series Relay Modules serve a wide variety of applications, from basic lighting control in building installations to industrial control cabinet installations. Just 17.5 mm (0.689 inch) wide, the compact DIN-rail-mount enclosure is ideal for distribution boards and meter cabinets.

Advantages:

  • Up to two break contacts and make contacts, or four make contacts
  • Available with manual operation
  • Commoning on each level via push-in jumpers
  • Clearly identified connection points
  • LED indicator for switching status
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Sockets with a Miniature Switching Relay or a Solid-State Relay
(857 Series)

WAGO's sockets with a miniature switching relay or a solid-state relay are the perfect combination of housing and electronics.

Advantages:

  • Pluggable MSR and SSR for DC and AC applications
  • Same profile allows the use of a single in-line, push-in jumper
  • Quick, easy replacement of relays in case of failure
  • Tool-free connection via Push-in CAGE CLAMP®
  • Ex approval (Zone 2)
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Sockets with an Industrial Relay (858 Series)

WAGO's DIN-35-rail-mount 858 Series Relay Sockets are designed for conventional industrial relays with standard pin spacing. These sockets carry relays equipped with two or four changeover contacts. During maintenance, they allow quick relay replacement without removing conductors.

Advantages:

  • Push-in termination of solid and ferruled conductors from 0.5 mm2 (20 AWG)
  • Dual conductor entries with Push-In CAGE CLAMP® connection technology
  • Manual operation in case of failure or during commissioning
  • Relay status indicator to stay updated visually
  • Relays with gold contacts for dry switching circuits
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New Product

Maximize Space in the Control Cabinet

New Solid-State Relay Module with Lower Power Loss at Higher Load Current

Making the best possible use of the limited space available is essential in control cabinet manufacturing. The new solid-state relay module (SSR module) can help: It switches a limiting continuous current up to 8 A. Due to its low power loss, it generates significantly less heat. This makes it possible to achieve high-density wiring – i.e., a larger number of switching elements – within a control cabinet with the same total power loss.

SSR modules are suitable for applications where a coupling level is required between the PLC and the load that is to be switched. Since they operate without moving parts, there is no mechanical wear. As a result, they offer a long service life, switch silently and are insensitive to shock and vibration. WAGO’s SSR modules use sockets that are pin-compatible with standard relays, making it very easy to replace a relay.

The Benefits for You:

  • New SSR module now switches loads up to 8 A.
  • Lower power loss reduces heat generation and allows higher-density wiring
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Your Contact Person at WAGO

Product Consulting

Mon-Thu 8 am - 5 pm CET
Fri 8 am - 4 pm CET

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