GSL electronics RBC-12-NG Manual

Page 1 of 4
Installation & Operating Instructions
Please read these instructions before use
GSL’s RBC range is a new generation of brake controllers that operate in a pre-set braking force utilising microprocessor technology.
Available in both 12V and 24V, GSL’s RBC range eliminates the need for a separate reducer on 24V systems. This new generation of brake
controllers has been designed for both single and dual axle trailers using a negative earth (ground) systems only.
Rugged and compact, it is easily installed with the simple connection of four wires and comes with a remote control. The remote control is
simple to install and makes adjusting and monitoring the brakes even easier. This remote control can be located up to 1m from the brake
controller. Both the 12V and 24V models also incorporate an override function for independent braking of the trailer from the vehicle brakes -
helping to prevent potentially dangerous swaying and snaking.
6SHFL¿FDWLRQV RBC-12-NG RBC-24-NG
0LQLPXP,QSXW9ROWDJH 9 VDC 18 VDC
1RPLQDO,QSXW9ROWDJH 12 VDC 24 VDC
0D[LPXP,QSXW9ROWDJH 15 VDC 30 VDC
6XLWDEOH)RU97UDLOHU%UDNHV Yes Yes
1R&XUUHQW/RDG 30 mA
0D[LPXP/RDG 2 Axle / 12A Avg
'LPHQVLRQV 30mm x 57mm x 90mm
:HLJKW 200g
Models:
RBC-12-NG & RBC-24-NG 
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(Standard installation)
RBC-12-NG
RBCNG-R2
Unit 2, 110 Station Road, Seven Hills ,NSW, 2147, Australia
Page 1 of 4
1 x Remote brake controller
1 x Retaining nut (on unit)
1 x Washer (on unit)
1 x Remote control
1 x Dash mount decal
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More information https://www.caravansplus.com.au

Page 2 of 4
Installation & Operating Instructions
Please read these instructions before use
Models:
RBC-12-NG & RBC-24-NG 
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2. Determine a suitable mounting location inside the cabin
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4. Using a suitable drill bit, drill holes in the marked locations
5. Secure the brake controller in position with self-tapping screws. Take care to not strip the holes by
over-tightening the screws
6. Drill a hole for the 8.5mm remote control shaft in a suitably sized mounting panel in the dash with a wall thickness of less than 4mm
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pressure with the indicator facing the minimum position
8. Plug the remote control lead into the brake controller
9. Connect brake wiring as per wiring instructions and follow Set-up and Operation procedures
1RWHBoth the 12V and 24V model are load activated and cannot be tested without load. At no load,
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be measured with a voltmeter or test light.
RBCNG-R2
Unit 2, 110 Station Road, Seven Hills ,NSW, 2147, Australia
Page 2 of 4
Wiring Diagram
To Remote Control BLACK
BLUE
WHITE
RED
To Vehicle Brake Switch (Cold Side)
Or source that is pure DC when vehicle brake lights are on.
Note: Only Activated by Positive feed.
Earth
To Trailer Brake Coils.
Fuse must be fitted (Not Supplied)
To Positive Voltage Feed
i.e Battery Positive
FUSE
0RGHO Fuse
RBC-12-NG 20A
RBC-24-NG 15A
More information https://www.caravansplus.com.au

RBCNG-R2
Unit 2, 110 Station Road, Seven Hills ,NSW, 2147, Australia
Page 3 of 4
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1) Refrain from using the vehicle chassis as a conduit for the earth return for the brake coils. Facilitate a separate
ground wire. (See point 3 below)
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the brake light switch. If this is not an option for your vehicle, then any point that receives a straight DC voltage should
be applicable. For example- top rear tail light, brake light relay or the wire connecting to the stop lights on the trailer plug.
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lights directly. Please use the alternatives listed above.
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the negative battery terminal.
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:LUH*XLGH
:KLWH:LUH Negative Battery
%OXH:LUH Brake
%ODFN:LUH Positive Battery
Fuse : 12V 20A / 24V 15A
5HG:LUH Brake Switch
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,PSRUWDQW A brake control unit that is not properly grounded may operate intermittently or not at all.
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Connecting to the existing wiring may damage the vehicles wiring and cause trailer brake failure.
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Page 3 of 4
Installation & Operating Instructions
Please read these instructions before use
Models:
RBC-12-NG & RBC-24-NG 
5HPRWH%UDNH&RQWUROOHUV
More information https://www.caravansplus.com.au

RBCNG-R2
Unit 2, 110 Station Road, Seven Hills ,NSW, 2147, Australia
Page 4 of 4
Warranty Conditions: Our products come with guarantees that cannot be excluded under the Australian Consumer Law.
The customer is entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage.
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amount to a major failure.
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of two (2) years from the date of the original purchase by the customer as marked on the customer’s original invoice.
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the braking and a counter-clockwise will decrease it.
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To activate the override function, simply push on the adjustment knob. Releasing the knob disables the function.
127(when the override is active, the braking force is still determined by the knob position.
The override function works to apply the trailer brakes without applying the vehicle brakes. This feature can be used when the tow
vehicle begins to sway or enter a tail wag situation. Please consult towing professionals or towing training schools for advice on
how to use this feature correctly. In the event of an emergency situation, do not rely on the override button for additional braking
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Page 4 of 4
Installation & Operating Instructions
Please read these instructions before use
Models:
RBC-12-NG & RBC-24-NG 
5HPRWH%UDNH&RQWUROOHUV
1RWH8QLWZLOOÀDVKWLPHVDIWHUSUHVVLQJWKHEUDNHRUXVLQJWKHRYHUULGHWKHQUHWXUQWRVROLG
No power or trailer disconnected from vehicle
Trailer connected / brakes connected / all systems OK
Either : Ɣ Brake pedal pressed, controller activley braking
ƔOverride has been pressed
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LED Indication Status
More information https://www.caravansplus.com.au