Contact Cables Group B

SRC Group B Contact Cables: the electrical spare part your slot car needs

When we talk about electrical continuity in a slot car, every millimetre of wire and every contact point matters. The SRC Group B Contact Cables (reference SRCRM1503) are the specific spare part designed to restore or replace the contact wire set of these models, ensuring a clean and stable current transfer from the braids to the motor.

Kit Contents

• 2 DEC terminals: precision connectors that ensure a firm and low-resistance connection in the car's electrical circuit.
• 1 + 1 silicom-pro cable of 75 mm: flexible, high-conductivity silicone cable, cut to the exact length for this set. The silicone allows for a clean layout without stiffness that could interfere with the chassis mechanics.
• 2 braids: responsible for collecting current from the track and transmitting it to the car's electrical system. Their proper condition is essential for a smooth and uninterrupted response to the controls.

Function and Performance

The contact wire set is one of the most wear-prone elements in any slot car that accumulates running sessions. An oxidised wire, a crushed braid, or a loose terminal directly translate into power losses, erratic response to the controls, or even unexpected stops on the track. Replacing the entire set with this SRC kit allows for a fresh start with guarantees, without having to search for components separately or improvise solutions.

The 75 mm silicom-pro cable offers the necessary flexibility so that the layout does not create mechanical stress on the soldering points or terminals, which is especially relevant in tight chassis or with limited interior space.

Assembly and Preparation

The replacement process is straightforward for any enthusiast with basic experience in slot car preparation. It is recommended to:

1. Carefully remove the worn cables and braids without damaging the chassis anchors.
2. Clean the soldering points before installing the new DEC terminals.
3. Lay the silicom-pro cable without forcing tight bends to take advantage of its flexibility.
4. Check the pressure of the braids on the track before closing the chassis.

Ideal for…

This kit is designed for enthusiasts who prepare or maintain SRC cars from the Group B line and want to have the original spare part instead of generic adaptations. It is also useful for clubs or preparation workshops that work with several cars of this reference and need to have stock of electrical consumables on hand.

Frequently Asked Questions

Is this kit compatible with other SRC models besides Group B?

The reference SRCRM1503 is specifically indicated for the SRC Group B set. Although some components may be similar to those from other lines of the brand, we recommend verifying the exact reference of your model before installing this kit.

What are DEC terminals and why are they important?

DEC terminals are precision connectors designed to ensure a low-resistance electrical connection. A faulty terminal can cause voltage drops that are directly noticeable in the motor's response, especially at low speeds or during braking.

How often should the braids be changed?

It depends on usage and the type of track. On wooden tracks with heavy use, the braids may wear out faster than on plastic tracks. A periodic visual inspection (crushing, deformation, accumulated dirt) is sufficient to know when it is time to replace them.

Do I need to solder to install this kit?

Yes, the correct assembly of wires and terminals in a slot car requires soldering. It is recommended to use good quality solder and a fine-tipped soldering iron to work comfortably in tight spaces.

Does the silicom-pro cable withstand the heat generated by the motor well?

The silicone cable is precisely the usual choice in slot preparation due to its resistance to higher temperatures than conventional PVC cable, making it suitable for areas close to the motor or in the zones of highest thermal dissipation of the chassis.

The SRC SRCRM1503 Contact Cable Set for Group B is a direct replacement kit including two DEC terminals, a 75 mm silicom-pro cable (1+1) and two braids. Designed for SRC Group B slot cars, it ensures clean electrical contact and stable power delivery. A straightforward and reliable solution for club racers and slot car enthusiasts looking to keep their cars in top racing condition.