UNDERSTANDING THE ELECTRICAL WIRING IN YOUR NEW CARAVAN
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UNDERSTANDING THE
ELECTRICAL WIRING IN YOUR
NEW CARAVAN
Caravan Electrical Solutions have provided this information pack for
New Age customers to better understand the electrical components
on their newly purchased caravan. We have included detailed
information on the 12 Pin and Anderson Plugs that will assist in
ensuring that your car will be compatible with your new caravan
prior to pick-up and hand over.
For more information please visit our website;
www.caravanelectricalsolutions.com.au
or contact your dealership.
12 Pin Plug configurations
Caravan Electrical Solutions have wired the 12 Pin Plug on your
caravan as per the table below. Please ensure that you take this
diagram to an Auto Electrician when setting up your vehicle to tow
your New Age caravan.
Trailer Plug Description Cable Colour Cable Min.Cable
Pin No. Nominal
CSA(mm²)
1. Left Hand Yellow ECA3 1.13
Indicator
2. Reverse Signal Black ECA3 1.13
(If Applicable)
3. Earth Return White ECA5 3.25
4. Right Hand Green ECA3 1.13
Indicator
5. Service Brakes Blue ECA5 3.25
6. Stop Lights Red ECA3 1.13
7. Clearance Marker Brown ECA3 1.13
Lights
8. Fridge
Breaksafe RED 10
Charging
9. Breaksafe Purple ECA4 1.85
Remote
10. Earth Return Black 10
11.
12. Fridge 12v Sensor Pink ECA4 1.85
(If Applicable)
Please note: Whilst there are no formal standards for the 12 Pin Plug
configurations CES believe that the above table offers the best solutions for
both car and caravan compatibility whilst towing. If you have any concerns
regarding the above configurations please contact CES to discuss this with a
member of our friendly technical support team.
Pin numbers
1. Left-hand indicator: Wired to the left-hand indicator of the tow vehicle.
2. Reverse signal (if applicable): Wired to reverse lights of the tow vehicle.
3. Earth return: Wired to earth of tow vehicle.
4. Right-hand indicator: Wired to the right-hand indicator of the tow vehicle.
5. Service brakes: Wired to service brake controller of the tow vehicle.
6. Stop lights: Wired to stop lights of the tow vehicle.
7. Clearance/marker lights: Wired to parker lights of the tow vehicle.
8. Fridge supply/Breaksafe charging: Wired to battery positive (+) of the tow
vehicle. It is recommended that this supply is taken off a dual battery isolating
device that allows the power supply to the fridge to be fed only when the
alternator of the car is charging if a manual fridge is being installed. Is an
automatic fridge is being used, pin 12 will tell the fridge when to use 12v.
Wiring this way ensures that the tow vehicle’s battery will not be
discharged/run flat when left connected, with the vehicle switched off. This
cable should be 10mm² in cross-sectional area. Pin 8 runs the element on the
fridge; this requires a 10mm² cable due to voltage drop. A 30amp circuit
breaker is recommended.
Fridge information:
Part Number Current Draw (A)1on 12v 12v Sensing Wire
(Pin12)
DP150i Vitri-Frigo2 8.3 Not Required
DP2600 Vitri-Frigo2 8.3 Not Required
RPD190 Waeco2 9.6 Not Required
N314-E Thetford 9.4 Required
N514-E Thetford 12.2 Required
N3185-E Thetford 14.6 Required
Please Note: Thetford fridges with models ending in E and Dometic fridges ending in 5 or 6 need a sending wire on pin 12 even if not listed here.
1
Please note that figures mentioned are maximums. These figures will depend on
how fridges are used (temperature/door operation).
2
These nominated fridges are 12volt compressor fridges. These fridges are not
connected via the car and are connected to the caravan house battery.
Breaksafe charging on Pin 8 is connected on the caravan side, no action is
required as long as power is supplied to Pin 8
9. Breaksafe remote battery monitor: Wired to the Breaksafe battery remote
monitor (not supplied, part number: RM6000) that is located within the
vehicle. This is only required for NSW registration, this is not required in any
other state unless specifically requested.
10. Earth return: Wired to earth of tow vehicle.
11. Spare: This is free for future additions unless used on your van by request.
12. Fridge 12v sensing wire: This is an ignition fed signal that activates the 12volt
circuit in the fridge automatically. For an automatic/electronic absorption (3-
way) fridge to operate on 12volt, this pin needs to have 12-volt power. This
needs to be sourced from an ignition source so that it is live only when the
engine is running.Anderson Plugs
Red Anderson Plug:
Your caravan may also be fitted with a Red Anderson plug, this is used to
power the ALKO electronic stability control. It should be wired directly to the
towing vehicle’s battery using a 6mm cable through a 30amp fuse or circuit
breaker.
Please note: Not all caravans are fitted with ALKO ESC, your caravan plan will
determine if the Red Anderson plug is required.
Authorised Brake Controllers:
The following brake controllers are approved for use with AL-KO ESC:
“Tekonsha” Prodigy PT
“Tekonsha” Primus IQ
“Hayes” Energiser III
“Tekonsha” P3
“Tekonsha” Prodigy
“Tekonsha” Voyager
“Hayman Reese” 06000 CompactIQ
“Hayman Reese” Guardian IQ
“Hayman Reese” Victor
“Red Arc” Tow Pro Elite EBRH-ACCV2
“Red Arc” Tow Pro EBRH-ACC (Approved with manufacture date after
August 2014)
“Red Arc” EB
“Red Arc” EBTM
“Hayes” Lemmerz Synchroniser
“Predator” DX2
“GSL Electronics” RBC-12 Remote – with sticker R12R1 or RBCR12RI
“GSL Electronics” EBC-12
“GSL Electronics” XLE-12T
“AME Products” Part No 04-989031 – 12 Volt Trailer Mount Electronic
Brake Control “Baxters” ARBHBC – 12V Remote Brake Controller – with sticker
BRHBC12RI
“Low Voltage” LV1400 – 12V Electronic Brake Controller
“Low Voltage” LV1403 – 12V Trailer Mount Electronic Brake Controller.
“Low Voltage” LV1405 – 12V Remote Brake Controller – with sticker
RBCR12R1 or R12R1
If your caravan is fitted with AL-KO Electronic Stability Control, it will be wired
as per the above diagram.
There is more information regarding the AL-KO ESC system on their website;
www.alkoesc.com.auGrey Anderson Plug:
Your caravan will be fitted with a Grey Anderson plug next to the 12 pin plug. This is used
to charge the caravan battery from the car’s alternator. This is also recommended to be
supplied through a dual battery isolating device. 8mm² cable is to be used.
Please note, some modern 4x4 have a Variable Voltage or Temperature Compensating
alternator (smart alternators) which alter their output dependent on requirements of the
load. If the tow vehicle is fitted with this technology it is recommended that a DC to DC
charger be fitted. We do not recommend using a charger greater than 25amps.
A fully compatible DC-DC charger, the Miniboost, is available, speak with your new Age
Dealer for more information.
If a third party DC to DC charger is to be fitted to the vehicle or already is, some minor
alterations may be necessary to the caravan wiring, please contact Caravan Electrical
Solutions for further information.
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