Relay module

The Relay Module is the workhorse of the system, designed to safely and efficiently control up to 8 different 12V/24V DC circuits in your camper. Whether it is the fridge, the water pump, or the outdoor lighting; this module brings industrial-grade reliability to your installation.

Unlike standard relay boards, this module has been specifically engineered to withstand the constant vibrations and fluctuating conditions of a vehicle environment. Thanks to its integration with the Master Unit via a robust system bus, you can completely eliminate the typical rat’s nest of wiring to your switches. Instead, everything is smartly controlled via software (Home Assistant), sensors, or physical push buttons.

  • 8x Automotive Relays (20A DC): Heavy-duty relays specifically designed to handle the high inrush currents of inductive loads (such as compressor fridges and water pumps) and high-power lighting.
  • Energy-Efficient Design: The internal logic consumes virtually no power, which is critical for maximizing your battery capacity when staying off-grid.
  • Status LEDs per Channel: Easily see which appliance or circuit is active inside your electrical cabinet at a single glance.
  • The System Bus: For interference-free communication with the Master Unit.
  • Heavy-Duty M3 Screw Connectors: No cheap, flimsy terminal blocks, but solid metal screw connections of industrial quality that are guaranteed not to rattle loose while driving.
  • Night Mode: No Light Pollution in the Sleeping Area A unique feature of this Relay Module is the physical LED-Disable switch. This allows you to turn off all status LEDs on the board with a single action, without affecting the operation of the relays.
  • Manual Override: Always in Control, Even Without Software Each of the 8 channels on the Relay Module is equipped with a physical, manual switch on the top board. This provides a crucial hardware backup for emergencies, or during the initial build and testing phase of your installation when the software is not yet active.

Technical specifications.

Powersupply8-15V DC
SwitchingPowerMax 20A DC per kanaal.
Power:10mA
Bus-voltage12V DC
CommunicationI2C
Dimensions (lxbxh)90x95x60mm
VariantsAvailable as kit or digital file.

Switches
  • switch.relay_1
  • switch.relay_2
  • switch.relay_3
  • switch.relay_4
  • switch.relay_5
  • switch.relay_6
  • switch.relay_7
  • switch.relay_8
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