EGON DC-Hub and DC-Hub Dual Installation Guide
Each DC-Hub and DC-Hub Dual 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 to get the digital version. If you prefer to print these out, the quality is good enough for you to then use a printed guide. These guides are backed up by installation videos on our YouTube channel.
EGON DC-Hub Installation Guide
What you will need to get started:
- Cable cutters
- Screw drivers
- The Installation and Operations Manual (here)
The EGON DC-Hub is suitable for 12 and 24V systems with high-output connectors upgraded from 50A to 80A each.
It also has the addition of the permissible input current increased to two 40A connectors that reduce voltage-drop during long-duration, high-current charging from DC-DC chargers
Connector Explanation
- The house (aux) battery (AGM, LiFePO4, flooded Lead Acid, etc.) connects to connector P3 and requires an external 150A fuse at the house battery bank. Any size battery bank can be used.
- The start battery connects to P8 and needs an external fuse at the start battery of your vehicle.
- Solar panels can connect to P7.
- Your P8 & P7 positive cables link to P6 for a seamless connection to your DC/DC charger with integrated MPPT controller (i.e. Redarc BCDC range, Enerdrive DC/DC, etc.). These can all be connected to P5 with charger output and ground, or connector P6 for solar and start battery input.
- All ground connections of every single connector are linked on the circuit board.
- All loads (compressors, fridges, lights, charge ports, etc.) can now be connected to the remaining connectors and will be automatically connected to the house battery.
Please take note:
- Connectors P4 & P5 can handle a constant 80A load. To prevent the Maxi Fuses from overheating, please use 2 Maxi Fuses.
- Example: When connecting a DC/DC charger to connector P5 that requires a 60A fuse, insert 2 x 30A fuses into fuse holder F13 & F13A.
- Do the same with connections to connector P4 and use the fuse holder F14 & F14A.
- Connectors P9 & P10 can only handle 40A constant load or 80A intermittent load.
- Currents of 40A must not be exceeded for more than 10 minutes at a duty cycle of 50% (10 minutes on / 10 minutes off) to allow the contacts to cool.
ATTENTION:
- Fuses are meant to fit tightly in the sockets on the DC-Hub Board.
- Do not attempt to pry open the receiving sockets to make fuses easier to remove.
- The tight nature of the fuse in their holders ensures minimal voltage-drop.
- If they 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.
- If you find a fuse that is not tight in its holder, we recommend using pliers, gently squeezing the connector before inserting the fuse.
- Pay special attention to the DCDC charger connection fuse (P5).
A Closer Look At The DC-Hub
DC-Hub with Redarc
This is an example of a standard Redarc DC system with a mid-sized inverter, a single house battery shunt, solar panel(s), DC/DC charger with an integrated MPPT controller, and an EGON Relay-Hub switching system.
The above also depicts an integration of a shunt to monitor the state of charge of the house battery. If your inverter exceeds 80A fuse ratings, it can be integrated using an external fuse from the house battery (shown above).
DC-Hub with Victron
This example shows a more complex DC system. It includes: a 50A DC/DC charger, 50A roof solar controller, 20A solar blanket charge controller, 3KVA Multi Plus inverter/charger, shunt, Cerbo GX, and a Touch-50 screen, all working alongside an EGON Relay-Hub switching system.
This configuration is a powerhouse and works beautifully in caravans, camper trailers, Troopcarriers, or even a canopy setup. The DC-Hub brings everything together, handling your high charge current and battery capacity like a pro, while keeping the whole system streamlined and easy to manage.
DC-Hub with Redarc and Victron
This example shows how to connect the BCDC Alpha range from Redarc. To get the most out of this charger setup, it is recommended that you connect your roof/fixed solar panels to an additional Victron MPPT. These chargers are inexpensive and allow your BCDC Alpha to maximise its charging potential from the alternator while the roof solar works in parallel. For example, you might receive about 50 A from the alternator and an additional 10 A from a 200 W roof panel via the Victron MPPT, giving roughly 60 A while driving in sunshine, instead of 50 A when relying on the BCDC Alpha’s internal MPPT for fixed solar. Instead, use the BCDC’s internal MPPT for a portable solar blanket. Another advantage of this approach is that the fixed panels can operate at a higher voltage than the solar blanket.
EGON DC-Hub Dual Installation Guide
Running a more intricate setup? DC-Hub Dual permits a configuration that combines two different start batteries with two alternators, even if they are producing different charge voltages. Add in a Redarc DC/DC charger, the Redarc Manager 30 with shunt, a Redarc TVMS Rogue switching system, a 2KVA inverter, a solar blanket connector, and a roof solar panel, and you’re officially operating at expert level. But the DC-Hub DUAL makes this so simple!
Want to build a 100A charging system? Pair up 2 x BCDC 1250D or BCDC Alpha 50, and voilà - 100A of charging power. Here’s the best part: this setup matches the performance of a Redarc Manager Alpha-100 but at a fraction of the cost.
Connector Explanation
- The house (aux) battery (AGM, LiFePO4, flooded lead acid, etc.) connects to connector P3 and requires an external 150A fuse at the house battery bank. Size doesn’t matter - DC-Hub doesn’t discriminate.
- Your start battery connects to P8 and P14 and needs an external fuse at the start battery of your vehicle.
- You can choose to supply the DC Hub-Dual from just one start battery to both DC/DC chargers or use two different start batteries which can also be supplied from two different alternators with different supply voltage, in case your DC/DC chargers are compatible with these voltages.
- Connect solar panels to P7 and P13.
- Your P8 and P7 positive cables link to P6 and P13 and P14 positive cables link to P12 for a seamless connection to both your DC/DC chargers with integrated MPPT controller (i.e. Redarc BCDC range, Enerdrive DC/DC, etc.). These can all be connected to P5 and P11 with charger output and ground, and connector P6 and P12 for solar and start battery input.
- What about the ground connections?! Simple. They’re all linked on the circuit board.
- The most important part. The fridge! Well, all of your loads (compressors, fridges, lights, charge ports, etc.) can now be connected to your remaining connectors. They’ll even automatically connect to the house battery. Simple!
- Handy hint from the experts: The connectors P4, P9, P10 and the 25A Outputs can also be used as Inputs to connect chargers, solar regulators, etc…
Please take note:
- Connectors P4 and P5 and P11 can handle a constant 80A load. To prevent the Maxi Fuses from overheating please use two Maxi Fuses. Also note not to exceed the total load of 150A for the DC-Hub Dual to the House battery.
- Example: When connecting a DC/DC charger to connector P5 that requires a 60A fuse, insert 2 x 30A fuses into fuse holder F13 and F13A. And when connecting a DC/DC charger to connector P11 that requires a 60A fuse, insert 2 x 30A fuses into fuse holder F15 and F15A.
- Do the same with connections to connector P4 and use the fuse holder F14 and F14A.
- Connectors P9 and P10 can only handle 40A constant load or 80A intermittent load.
- Currents of 40A must not be exceeded for more than 10 minutes at a duty cycle of 50% (10 minutes on / 10 minutes off) to allow the contacts to cool.
ATTENTION:
- Fuses are meant to fit tightly in the sockets on the DC-Hub Dual Board.
- Do not attempt to pry open the receiving sockets to make fuses easier to remove.
- The tight nature of the fuse in their holders ensures minimal voltage-drop.
- If they 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.
- If you find a fuse that is not tight in its holder, we recommend using pliers, gently squeezing the connector before inserting the fuse.
- Pay special attention to the DCDC charger connection fuse (P5).
DC-Hub Dual with Redarc
This wiring configuration works in boats with two alternators and different charge voltages but can easily adapt to a single start battery/alternator for canopies, Troop carriers, wagons, caravans and camper trailers.
DC-Hub Dual with multiple Victron chargers
This connection example features 2 x Victron Orion XS DC/DC chargers, 50A roof solar, 20A solar blanket connection, the EGON Relay-Hub switching system, a smart shunt, Cerbo GX with Touch-50 display, and a Multi Plus inverter/charger. Maxing out at 150A of house battery charging, it’s the ultimate solution for RVs, caravans, camper trailers with more complex setups.
DC-Hub Dual with Redarc Manager ALPHA 100
Curious how the Redarc Manager Alpha-100 fits into the EGON architecture? Easily. Add a shunt, TVMS display, 2KVA inverter, TVMS Rogue switching system, roof solar, and solar blanket connections, and you’re good to go. Perfect for caravans, camper trailers, canopies, large wagon setups, and RVs.
DC-Hub Dual with Enerdrive
This connection example shows how to connect 2 x Enerdrive DC/DC chargers to the EGON DC-Hub Dual. It also showcases all the wiring dimensions and fuse ratings. The inputs for these chargers come from one start battery through 2 x 6B&S twin core cables. This system also includes a Simarine monitoring system with 1 main shunt and 4 optional low current shunts to measure power consumption for fridges or other loads individually and an Enerdrive 3KVA Inverter/Charger.
Final Words
- All batteries MUST be fused as close to the battery as possible. Do not rely on the fuses built into the DC-Hub or DC-Hub Dual for this. Read that again. Now.
- Cables that are too thin can cause heat build-up and reduce the efficiency of chargers and accessories. That’s no fun for anyone!
- We’ve made connecting cables extremely easy! But you can still get them wrong. After all, we’re only human. The copper must be clean and enter into the connection cleanly and the screw tightened firmly. (See torque settings for guides).
- Fuses protect the cables from burning in case of a short-circuit. So fuses must be capable of handling the current required to run the accessory, but NOT MORE THAN 25% of that. Accessory manufacturers recommend fuse sizes for a reason. Cue: “We didn’t start the fire” by Billy Joel.
Fuses
The DC-Hub and DC-Hub Dual are not supplied with any fuses.