EGON Relay-Hub Installation Guide

All-in one relay and compact DC distribution board. Profit-making, time-saving, quality improving. Game-changing simplicity.

Each Relay-Hub is supplied with a QR code to enable you to view on your PC, laptop or phone the installation instructions with guides and common wiring examples. Also, as part of these pages, there are links to videos and installation tutorials.

I suggest you click HERE if you would like a digital version. These guides are backed up by installation videos on our YouTube channel.

The EGON Relay-Hub is a robust 12-24 Volt combined switching and fusing hub designed for easy integration into DC electrical systems.

Whether you’re adding switches or expanding circuits, the Relay-Hub simplifies the process while offering reliability and flexibility.

Below, you’ll find step-by-step instructions, diagrams, and links to resources to help with your installation.

Technical Specifications

  • Voltage: 12V / 24V
  • Maximum Current: 80A
  • Output Circuits: 5 x 25A
  • Torque Settings for 25A Connectors: 0.6 Nm
  • Dimensions with Bracket: 7cm(H) x 20cm(L) x 20cm(W)

Included Components

  • EGON Relay-Hub
  • EGON Relay-Hub Bracket and Cover (optional)

Note: EGON Relay-Hub Bracket and Cover and Fuses are not included and can be purchased separately.

Video Installation Guides

Watch step-by-step instructions to get the most out of your EGON Relay-Hub:

Introduction to the EGON Relay-Hub
EGON Relay-Hub - Unboxing and Assembly
EGON Relay-Hub - Circuit Overview
EGON Relay-Hub - Wiring to Battery Box
EGON Relay-Hub - Wiring for Driving Lights
EGON Relay-Hub - Wiring to the EGON DC-Hub

EGON Relay-Hub Installation Guide

What you will need to get started:

  • Screwdriver

  • Allen key

  • Spanner

  • The installation guide (here)

Things You Should Know

  1. There’s one main power supply, but more can join the party!

    • The Egon Relay-Hub, as long as it is configured correctly, can connect multiple power supplies of different voltages to different load outputs and relays through its five alternate supply connectors.

  2. 5 x 25A output circuits and 5 individual switching / constant power supply circuits.

    • Getting your head around the workings isn’t too complicated the circuits are labelled e.g. Supply 1, Load 1, Alt. Supply 1, and Switch Input 1 are all for the same circuit.

  3. This party has plenty of lights! There are LEDs for each fuse to indicate if it is blown and LEDs that light up for active outputs, allowing for easy fault finding.

  4. There are override switches that can be used if your external switching fails (also super handy for fault finding).

Please take note:

  • When connecting the Main Supply with an external fuse, use 80A maximum.
  • The recommended torque setting for 25A connectors is 0.6Nm.
  • When connecting additional power supplies through the Alt. Supply, use an exterior fuse.

Connector Explanation

EGON Relay-Hub

Main Supply

Connect the Main Supply with an external fuse (80A max) to a power supply (e.g., DC-Hub, Battery Box, House Battery, Auxiliary Battery, or even your Start Battery). This connection provides power to the electrical system.

Fuses

Once the power supply is established, add a fuse to the Supply # circuit. This will power the corresponding Alt. Supply # and Load Relay # circuits.

Load Relay

Switching the Load Relay on powers the corresponding Load terminals. The LED next to the Load terminals will light up to indicate the active output.

Egon Relay-Hub | Power Distribution

External Switch

To connect an external switch:

  • Use a 3-core cable (up to 7 for multiple switch circuits) from the Switch Input terminals on the board to your switch.
  • Add a fuse (3A max) to the Power Out circuit to supply power to the Switch Input terminals.

The Switch Inputs (1 through 5) act as signal returns to activate the corresponding relays:

  • Switch Input 1 activates Load 1 relay.
  • Switch Input 2 activates Load 2 relay, and so on.

Switched Load

To connect a switched load (e.g., light, pump, oven):

  • Use twin-core cable and connect it from your load to the Loads terminals on the board.

Constant Power Load

To connect a constant power load (e.g., fridge, communications equipment):

  • Use twin-core cable and connect it from your load to the Alt. Supply terminals on the board.

ATTENTION:

  • If fuses become loose-fitting, the connection may heat up, and voltage drop and efficiency will be reduced and damage can occur due to heat build up on the fuse holder.

Connection Diagrams

Circuit diagram. Simple schematic

Egon Relay-Hub Simple Setup Diagram

The Relay-Hub is supplied with 12V or 24V power to the Main Supply from the system’s house battery. When inserting a fuse into Supply-1, Supply-2, Supply-4 and Supply-5, power from the house battery becomes available for switching the Work light at Load-1 and the oven at Load-2. There is also constant power available at Alt. Supply-4 and Alt. Supply-5 from the house battery to run constant power lights and a fridge. The switches can be supplied from Switch Inputs Power Out and the trigger signal can be returned to the board’s Switch Inputs.

The Relay-Hub is also being supplied with 12 Volt or 24 Volt at Alt. Supply-3 from the start battery. This is a separate battery circuit and it needs to be fused externally and NOT on the Relay-Hub. Do not insert a fuse on the Relay-Hub when you supply the unit externally (please read that again and make sure you understand this!). This setup can be used to run the driving lights through the Relay-Hub. Just use the High-beam signal at Switch Input-3 to trigger the driving lights.

IMPORTANT: You can mix a 24-Volt start battery system and a 12-Volt house battery system or vice versa. You can even use a 24-Volt and a 12-Volt input trigger signal to the same switch input. Just make sure you separate the two with diodes to prevent return current through the cables to the Switch Input.

Circuit diagram. More complex schematic

Egon Relay-Hub Complex Setup Diagram

Here, three work lights and two pumps are connected to the Relay-Hub. Each product can be controlled individually. The Relay-Hub gets supplied with power from the battery of choice to the Main Supply connector. Each circuit gets fused on the board. Pump-2 has got a UV filter that turns on as soon as Pump-2 is switched on. The lights can be controlled through the switches or the remote control. Channel-4 of the remote control can switch all three lights on at the same time. To prevent return current on channel-4, all channels are separated with diodes. The pumps can be switched with the switches. The remote is being supplied with constant power through the Supply-5 fuse.

All switches are supplied from the Relay-Hub Power Out. The return signals from the switches are connected to Switch Inputs 1 to 5. A standard 7-core trailer cable can be used to make the connection of the switches quick and simple. The switches have a control light diode built in (like most switches do) which will illuminate when the output is active. The way this diagram is drawn, the light switch control lights will also illuminate when the remote control turns the work lights on.

Additional switch panels can be added the same way the Remote Control has been added.

Time for Mounting

The Egon Relay-Hub comes with a stainless-steel mounting bracket and cover to protect the relay hub and allow for easy connections. Fastening nuts and screws are provided to hold the circuit board in place.

Step One:

Peel off the proactive covering and attach all the nuts to the bracket using the small holes in the base — four for the corners and ten staggered in the centre. It’s important to attach all the nuts to make sure the board is supported properly.

Step Two:

Find a place and bolt it down. The large holes in the back provide several options for securing the bracket in the ideal place for the project you’re working on.

Step Three:

Insert the board into the bracket, ensuring that the connection holes in the brackets line up with the connectors (the left and right edges of the bracket are different). Attach the board to the bracket by screwing it onto the nuts you placed earlier. Finally, screw the cover in place.

Final Words

Well, firstly, if you’ve just experienced the delight of installing your first Egon Relay-Hub, then We're jealous! Enjoy the time saved and future time that this device will save you for many more installations down the line.

Remember:

  • 80A maximum current through the board. We’ve used the best parts, but please don’t push your luck! Having an Egon Relay-Hub makes you lucky enough.

  • Locate the device in a safe place. When your client goes 4WD and floods the engine, we don’t want the Egon Relay-Hub flooding with it. It’s really not a great swimmer.

  • Take care when getting complicated. The Egon Relay-Hub is a versatile piece of kit that can mix multiple battery supplies and switch source voltages on the same board. However, external diodes may be required depending on what you’re doing. Heiner has some great tips in the videos.

  • Our connectors are reliable. The recommended torque settings for 25A connectors is 0.6Nm.

Other Useful PDFs for installation:

Related Products

Support

For further assistance: