Important
For your safety, REDARC recommends installation by a qualified auto electrician or technician. Our trusted REDNetwork is made up of professional auto electrical businesses certified by REDARC to install the complete of REDARC solutions. Find Your Local Installer
This information is applicable to the following products:
- BCDC Classic range (BCDC1225D, BCDC1240D, BCDC1250D)
- BCDC Core range (BCDCN1225, BCDCN1240)
Previous connection requirements
In earlier BCDC models, the blue wire had different connection requirements depending on the version:
BCDC12XX (Standard model): Blue wire connected to battery positive
BCDC12XX-LV (Low Voltage model): Blue wire connected to ignition
How the BCDC blue wire works
The BCDC1225D combines both Standard and Low Voltage (LV) functions into a single unit. This simplifies installation and removes the need to choose between separate models.
Blue wire connected to battery positive: The BCDC1225D will operate in Low Voltage (LV) mode.
Blue wire left disconnected: The BCDC1225D will operate in Standard mode.
This dual-function design gives installers and users more flexibility across different vehicle types and applications.
The diagram below illustrates the correct connection method for selecting either Standard or Low Voltage operation.
