Electrical Connectors & Wiring
Electrical Connectors & Wiring — FAQ
What are Deutsch DT connectors and why are they used in automotive wiring?
Deutsch DT connectors are sealed, waterproof plugs designed for harsh automotive, marine and 4WD environments where dust, water and vibration are a constant. They use precision contacts and silicone seals to keep a reliable connection on lights, sensors and accessory circuits. You will find them in 2, 4, 6 and 12-way configurations here, so you can match the plug to the number of wires in your circuit.
Which Deutsch kit and crimp tool should I choose?
Pick a kit based on how many terminations you expect to do and whether you want the tooling included. The smaller assortments like the 117-piece and 4-way kits suit occasional repairs, while the 550, 1000 and 1700-piece kits with a genuine Deutsch crimp tool are better for regular workshop use. For a clean, repeatable crimp, choose a proper closed-barrel Deutsch crimper such as the iCrimp DT12 or DT20 rather than generic pliers.
How do I connect a caravan or trailer with different plug types?
Trailer wiring comes in several standards, so an adaptor lets you tow without rewiring the plug. The 7 pin flat to 12 pin flat adaptor bridges a common mismatch between vehicle and trailer connectors, while the 50A Anderson style plugs handle heavier power feeds for fridges, batteries and solar. Confirm the pin count and layout on both your vehicle and trailer before selecting an adaptor.
Are these connectors and leads suitable for outdoor and marine use?
The Deutsch DT range and Anderson style connectors are built with sealed, corrosion-resistant contacts intended for exposed automotive and marine applications. The industrial extension leads are rated for their listed current and length for site and outdoor duties. Always match the connector rating to your circuit and keep unused Deutsch cavities fitted with sealing plugs to maintain the waterproof rating.
How do I get a reliable, long-lasting crimp on Deutsch contacts?
Start by stripping the correct length of insulation for the contact and using wire in the recommended AWG range, such as 14-16AWG for many DT contacts. Use a matched closed-barrel crimper so the contact grips both the conductor and insulation evenly, then give each wire a gentle tug to confirm it is seated. Once crimped, push the contacts in until they click and fit the wedge lock to stop them backing out over time.

