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Axel Joost Elektronik

E - Harness

547,40 €
incl. 19% VAT
plus shipping and handling

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Universal digital harness for cars


This set is the first choice for the supply of all 12 Volt devices in e-mobility vehicles and for the restauration of classic cars if you need to change the original harness due to it´s age.


The E-Harness contain a dashboard control module and 2 power modules what control the 12 Volt power to all lights and other 12 Volt devices in a car. All switches and buttons at the dashboard are connected to the dashboard module. The modules "talk" via a small 2 - wire data line. The main power to the modules is supplied from the dashboard module when you switch on the ignition switch. The 2 power modules are identical and are installed at the front side and rear side of the car. A small bridge against ground decide if the modul is mounted at the front side or rear side. Almost all power outputs are short circuit protected and self resetting after the short circuit. This reduce the dimensions of the fuse box. This digital harness saves more than 100 meter cable in a typical car installation. The length of the power cables to the lamps are shorter and the installation time is shorter as well compare to a "traditional" harness.


Schematic (click it for zoom):

RB-10 Relaybox


Manual (pdf)



Each module: 104 mm length x 50 mm wide x 25 mm height

Body material:

ABS plastic, water resist potted

Case Color:


recommended cables:

0,14 qmm for inputs, 1,5 qmm for power outputs

Power consumption in operation:

20 mA, outputs off

Maximum temperature:

80 degree Celsius

Maximum output current: 50 Ampere for control module, 2 x 25 Ampere for power modules

Input voltage range:

7 - 18 Volt

Maximum input current 

50 Ampere

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This product was added to our catalog on Wednesday 13 November, 2019.

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