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Wago Relay and Optocoupler Modules

Explore our comprehensive range of Wago Relay and Optocoupler Modules, designed to enhance your electrical systems with reliability and precision. Whether you’re working on automation, control panels, or industrial applications, Wago modules provide seamless integration and superior performance. Trust in Wago’s advanced technology to ensure efficient signal transmission and electrical isolation. Equip your projects with the best in relay and optocoupler solutions for unmatched quality and dependability.

Browse the range below to compare formats and features, and visit our main Wago Shop to browse our full brand range and pair with compatible products.

Showing all 20 results

Wago 788-303 Wago 788 Relay Module with 1 Changeover Contact - 12V DC 16A 2.5 mm² Grey 1Wago 788-303 Wago 788 Relay Module with 1 Changeover Contact - 12V DC 16A 2.5 mm² Grey 2

Wago 788-303 Relay Module with 1 Changeover Contact – 12V DC 16A 2.5mm² Grey
Available to Order
Estimated Lead Time:
Usually 3 - 5 Working Days
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SKU: 788-303
£8.75
Wago 788-304 Wago 788 Relay Module with 1 Changeover Contact - 24V DC 16A 2.5 mm² Grey 1Wago 788-304 Wago 788 Relay Module with 1 Changeover Contact - 24V DC 16A 2.5 mm² Grey 2

Wago 788-304 Relay Module with 1 Changeover Contact – 24V DC 16A 2.5mm² Grey
9 In Stock
More available within:
Usually 3 - 5 Working Days
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SKU: 788-304
£7.35
Wago 788-384 Wago 788 Relay Module with 2 Driven Changeover Contacts - 24V DC 6A 2.5 mm² Grey 1Wago 788-384 Wago 788 Relay Module with 2 Driven Changeover Contacts - 24V DC 6A 2.5 mm² Grey 2

Wago 788-384 Relay Module with 2 Driven Changeover Contacts – 24V DC 6A 2.5mm² Grey
Available to Order
Estimated Lead Time:
Usually 3 - 5 Working Days
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SKU: 788-384
£23.79
Wago 788-354 Wago 788 Relay Module with 1 Changeover Contact for Lamp Loads - 24V DC 16A 2.5 mm² Grey 1Wago 788-354 Wago 788 Relay Module with 1 Changeover Contact for Lamp Loads - 24V DC 16A 2.5 mm² Grey 2

Wago 788-354 Relay Module with 1 Changeover Contact for Lamp Loads – 24V DC 16A 2.5mm² Grey
11 In Stock
More available within:
Usually 3 - 5 Working Days
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SKU: 788-354
£13.94
Wago 788-311 Wago 788 Relay Module with 2 Changeover Contacts - 12V DC 8A 2.5 mm² Grey 1Wago 788-311 Wago 788 Relay Module with 2 Changeover Contacts - 12V DC 8A 2.5 mm² Grey 2

Wago 788-311 Relay Module with 2 Changeover Contacts – 12V DC 8A 2.5mm² Grey
13 In Stock
More available within:
Usually 3 - 5 Working Days
Read More
SKU: 788-311
£9.04
Wago 788-312 Wago 788 Relay Module with 2 Changeover Contacts - 24V DC 8A 2.5 mm² Grey 1Wago 788-312 Wago 788 Relay Module with 2 Changeover Contacts - 24V DC 8A 2.5 mm² Grey 2

Wago 788-312 Relay Module with 2 Changeover Contacts – 24V DC 8A 2.5mm² Grey
Available to Order
Estimated Lead Time:
Usually 3 - 5 Working Days
Read More
SKU: 788-312
£7.60
Wago 288-437 Wago 288 Relay Module with Driven Contacts - 2 Changeover Contacts - 24V DC 5A 2.5 mm²

Wago 288-437 Relay Module with Driven Contacts – 2 Changeover Contacts – 24V DC 5A 2.5mm²
Available to Order
Estimated Lead Time:
Usually 3 - 5 Working Days
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SKU: 288-437
£64.14
Wago 788-515 Wago 788 Relay Module with 2 Changeover Contacts - 115V AC 8A 2.5 mm² Grey 1Wago 788-515 Wago 788 Relay Module with 2 Changeover Contacts - 115V AC 8A 2.5 mm² Grey 2

Wago 788-515 Relay Module with 2 Changeover Contacts – 115V AC 8A 2.5mm² Grey
Available to Order
Estimated Lead Time:
Usually 3 - 5 Working Days
Read More
SKU: 788-515
£10.07
Wago 788-516 Wago 788 Relay Module with 2 Changeover Contacts - 230V AC 8A 2.5 mm² Grey 1Wago 788-516 Wago 788 Relay Module with 2 Changeover Contacts - 230V AC 8A 2.5 mm² Grey 2

Wago 788-516 Relay Module with 2 Changeover Contacts – 230V AC 8A 2.5mm² Grey
Available to Order
Estimated Lead Time:
Usually 3 - 5 Working Days
Read More
SKU: 788-516
£11.98
Wago 788-512 Wago 788 Relay Module with 2 Changeover Contacts - 24V AC 8A 2.5 mm² Grey 1Wago 788-512 Wago 788 Relay Module with 2 Changeover Contacts - 24V AC 8A 2.5 mm² Grey 2

Wago 788-512 Relay Module with 2 Changeover Contacts – 24V AC 8A 2.5mm² Grey
8 In Stock
More available within:
Usually 3 - 5 Working Days
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SKU: 788-512
£8.82
Wago 288-512 Wago 288 Relay Module with 2 Changeover Contact - 24V AC/DC 6A 2.5mm² Grey 1Wago 288-512 Wago 288 Relay Module with 2 Changeover Contact - 24V AC/DC 6A 2.5mm² Grey 2

Wago 288-512 Relay Module with 2 Changeover Contact – 24V AC/DC 6A 2.5mm² Grey
Available to Order
Estimated Lead Time:
Usually 3 - 5 Working Days
Read More
SKU: 288-512
£46.93
Wago 857-358 Wago 857 Relay Module with 1 Changeover Contact - 230V AC/DC 6A 2.5mm² Grey 1Wago 857-358 Wago 857 Relay Module with 1 Changeover Contact - 230V AC/DC 6A 2.5mm² Grey 2

Wago 857-358 Relay Module with 1 Changeover Contact – 230V AC/DC 6A 2.5mm² Grey
3 In Stock
More available within:
Usually 3 - 5 Working Days
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SKU: 857-358
£18.36
Wago 857-354 Wago 857 Relay Module with 1 Changeover Contact - 24V AC/DC 6A 2.5mm² Grey 1Wago 857-354 Wago 857 Relay Module with 1 Changeover Contact - 24V AC/DC 6A 2.5mm² Grey 2

Wago 857-354 Relay Module with 1 Changeover Contact – 24V AC/DC 6A 2.5mm² Grey
Available to Order
Estimated Lead Time:
Usually 3 - 5 Working Days
Read More
SKU: 857-354
£14.45
Wago 857-304 Wago 857 Relay Module with 1 Changeover Contact - 24V DC 6A 2.5mm² Grey 1Wago 857-304 Wago 857 Relay Module with 1 Changeover Contact - 24V DC 6A 2.5mm² Grey 2

Wago 857-304 Relay Module with 1 Changeover Contact – 24V DC 6A 2.5mm² Grey
Available to Order
Estimated Lead Time:
Usually 3 - 5 Working Days
Read More
SKU: 857-304
£12.88
Wago 857-724 Wago 857 Solid-State Relay Module - 3A Grey - 24V DC Input - 0-24V DC Output 1Wago 857-724 Wago 857 Solid-State Relay Module - 3A Grey - 24V DC Input - 0-24V DC Output 2

Wago 857-724 Solid-State Relay Module – 3A Grey – 24V DC Input – 0-24V DC Output
Available to Order
Estimated Lead Time:
Usually 3 - 5 Working Days
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SKU: 857-724
£24.92
Wago 858-304 Wago 858 Manual Operation Relay Module with 4 Changeover Contacts - 24V DC 5A 1.5mm² Grey 1Wago 858-304 Wago 858 Manual Operation Relay Module with 4 Changeover Contacts - 24V DC 5A 1.5mm² Grey 2

Wago 858-304 Manual Operation Relay Module with 4 Changeover Contacts – 24V DC 5A 1.5mm² Grey
1 In Stock
More available within:
Usually 3 - 5 Working Days
Read More
SKU: 858-304
£15.57
Wago 859-730 Wago 859-730 Optocoupler Module - 3A Grey - 24V DC Input - 3-30V DC Output 1Wago 859-730 Wago 859-730 Optocoupler Module - 3A Grey - 24V DC Input - 3-30V DC Output 2

Wago 859-730 Optocoupler Module – 3A Grey – 24V DC Input – 3-30V DC Output
Available to Order
Estimated Lead Time:
Usually 3 - 5 Working Days
Read More
SKU: 859-730
£28.47
Wago 859-794 Wago 859 Railway Optocoupler Module - 0.1A Grey - 24V DC Input - 9-60V DC Output 1Wago 859-794 Wago 859 Railway Optocoupler Module - 0.1A Grey - 24V DC Input - 9-60V DC Output 2

Wago 859-794 Railway Optocoupler Module – 0.1A Grey – 24V DC Input – 9-60V DC Output
Available to Order
Estimated Lead Time:
Usually 3 - 5 Working Days
Read More
SKU: 859-794
£11.76
Wago 859-390 Wago 859 Railway Relay Module with 1 Changeover Contact - 24V DC 5A 2.5mm² Grey 1Wago 859-390 Wago 859 Railway Relay Module with 1 Changeover Contact - 24V DC 5A 2.5mm² Grey 2

Wago 859-390 Railway Relay Module with 1 Changeover Contact – 24V DC 5A 2.5mm² Grey
Available to Order
Estimated Lead Time:
Usually 3 - 5 Working Days
Read More
SKU: 859-390
£13.08
Wago 859-304 Wago 859 Relay Module with 1 Changeover Contact - 24V DC 5A 2.5mm² Grey 1Wago 859-304 Wago 859 Relay Module with 1 Changeover Contact - 24V DC 5A 2.5mm² Grey 2

Wago 859-304 Relay Module with 1 Changeover Contact – 24V DC 5A 2.5mm² Grey
Available to Order
Estimated Lead Time:
Usually 3 - 5 Working Days
Read More
SKU: 859-304
£13.03

Showing all 20 results

Wago Relay & Optocoupler Modules for Reliable Control & Signal Isolation

Our range of Wago relay and optocoupler modules is designed for clean, dependable switching and signal interfacing in control panels, building services, and industrial automation. Whether you need to drive a load from a PLC output, add galvanic isolation, or create a service-friendly interface between field wiring and control equipment, these slim DIN-rail modules help keep panel wiring organised and easy to maintain.

Relay Interface Modules for Switching Loads from PLC Outputs

Relay modules are commonly used to switch higher-current or different-voltage loads from low-power control signals. Typical applications include:

  • Switching contactors, solenoids and valves
  • Driving fans, pumps and heaters (via suitable switching devices)
  • Interfacing PLC outputs to field devices
  • Adding changeover/NO/NC contacts where required

Select the correct module by matching coil/control voltage, contact type, and load rating to your circuit design.

Optocoupler Modules for Galvanic Isolation & Signal Conditioning

Optocoupler modules provide electrical isolation between input and output circuits, helping to protect sensitive control electronics from noise, spikes, or differing potentials. They’re often used for:

  • Isolating digital inputs/outputs
  • Reducing interference in long cable runs
  • Protecting PLC I/O and control cards
  • Interfacing different signal levels (where specified)

Always check the product details for input/output voltage range, switching characteristics, and any required suppression components.

Choosing the Right Wago Module for Your Panel

When choosing relay or optocoupler modules, pay particular attention to:

  • Control/coil voltage (e.g. 24V DC, 230V AC — varies by model)
  • Contact configuration (NO/NC/changeover) and switching capacity
  • Input/output characteristics for optocouplers (logic level, current draw, response time)
  • Terminal type and compatibility with your wiring method
  • Any integrated features such as LED indication, test points, or pluggable relays (where listed)

For like-for-like replacements, matching the exact series and part number is usually the safest route.

Panel Build & Compliance Notes

Relay and isolation modules should be selected in line with the panel design, applicable standards, and the requirements of the controlled load. Always verify ratings, approvals, and installation guidance in the manufacturer datasheet, and ensure adequate spacing/ventilation where heat dissipation is a consideration.

Visit Our WAGO Shop

Looking for more? Visit our WAGO Shop to browse the full range,  all with fast UK delivery and trade pricing.

Fast UK Delivery on WAGO Relay Modules

Most items show stock/lead-time status on the listings. Free UK Mainland next-day delivery is available on orders over £100 + VAT for in-stock items, with a 3pm cut-off.






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Next Day Delivery

Cut-Off Time and Order Information
To ensure your order qualifies for next day delivery, please place your order by 3:00 PM. This is subject to all items being available on the shelf at the time of your order. For orders where the total value exceeds £200 + VAT (double our standard carriage-paid order value of £100 + VAT), we are happy to split the delivery into two shipments if some items are needed urgently and others are not immediately available. If you have any questions or need further assistance, feel free to reach out to us via WhatsApp for live support. We’re here to help!

In Stock Delivery Policy

Free Next-Day Delivery Over £100 + VAT:
Orders above £100 + VAT qualify for free next-day delivery via DPD for in-stock items. While we strive for timely dispatch, we recommend placing orders early to avoid potential delays. Once dispatched, unexpected issues may arise despite the courier’s efforts.

Orders Below £200 + VAT:
To keep costs manageable, we dispatch your order once all items are ready, including products with longer lead times.

Need items faster? You can pay for an additional delivery service to receive in-stock items sooner. Simply email us with your order details, and we’ll send you a payment link for the extra delivery cost.

Orders Above £200 + VAT:
For larger orders, we can split delivery at no extra cost. In-stock items will be sent immediately, with the remaining items dispatched once available.

Supplier Lead Time & Availability

This item may be sourced from our supplier before dispatch.
The lead time shown is an estimate only and is based on the usual supplier timeframe. It is subject to supplier availability and is not a guaranteed delivery date.
We do not have a live supplier stock feed, so supplier stock can change without notice.
Delivery timers and courier estimates apply once the item is available for dispatch.
If the item is unavailable, we will contact you with the available options, including waiting for stock, choosing an alternative product, cancellation, or a refund for the unavailable item.
This does not affect your statutory rights.

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Delivery info

WAGO items that are not available from our shelf stock will usually be ordered from WAGO and delivered within an estimated 3–5 working days. Stock availability, order cut-off times and courier schedules may affect the timing.

Where an item is not available from WAGO’s UK stock and must be imported from Germany, delivery will take longer. We will contact you to confirm the estimated lead time and the available options before proceeding.

For mixed orders containing products from other suppliers, dispatch arrangements may vary, and the order may follow the longest delivery estimate shown.

In the unlikely event that an item becomes unavailable, we will contact you with the available options, which may include waiting for stock, choosing an alternative product or cancelling the unavailable item for a refund.

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