T7Design Wiring Harness / Switch Kits For Ducted Electric Cab Heaters - Option 1

The T7Design Wiring Harness / Switch Kits provide a complete electrical connection solution for T7Design ducted electric cab heaters on 12V DC systems. Each kit is pre-assembled and supplied with Ripca relays, high quality wiring and terminals, glue lined heatshrink on high current connections, an in-line fused 12V supply cable with ring terminals, and dedicated control switches to ensure safe and reliable operation.Review the key features of these wiring harness and switch kits:Pre-Assembled Loom Construction: The harness is supplied fully assembled with correctly terminated cables and integrated components, which reduces installation time, removes guesswork when routing and connecting circuits, and ensures you achieve a consistent and reliable electrical setup from the outset.Ripca Automotive Relays: High quality Ripca relays are integrated into the circuit to manage the heater s current draw safely, allowing stable switching of high loads without overloading your vehicle s existing wiring and providing dependable heater activation every time you use it.Glue Lined Heatshrink on High Current Connections: All high current joints are protected with adhesive lined heatshrink tubing that seals against moisture and vibration, helping you maintain long term electrical integrity and reducing the risk of connection failure in demanding environments.In-Line Fused 12V Supply Cable: The dedicated 12V DC power feed includes an in-line fuse and pre-crimped ring terminals, providing circuit protection against overload or short circuit conditions while allowing secure connection directly to your power source for a safer installation.Integrated Heater Control Switches: Supplied switches are matched to the harness and heater requirements, giving you straightforward control of power delivery and fan operation so you can manage cabin temperature easily from your dashboard or control panel.High Quality Automotive Wiring and Terminals: The loom uses durable automotive grade cable and properly crimped terminals throughout, ensuring low resistance connections and stable voltage supply which supports consistent heater performance.You achieve a safe and organised electrical installation that protects your heater and vehicle wiring when using these harness and switch kits. The integrated relays, fused supply and sealed high current joints help you manage electrical load correctly on a 12V system, reducing the likelihood of faults. Adding this kit to your heater installation is a practical step that supports reliable cabin heating and forms a clean addition to your vehicle s electrical setup.Wiring Harness Options:Option 1 - Suitable for 600w and 400w ducted electric cab heaters this option has a single relay and on/off rocker switch for simple switching of the heaterOption 2 -  Suitable for 600W ducted electric can heater this option has 3 relays and a 4 position switch giving greater control over the heater. The 4 switch positions are OFF / Fan only / Fan + 400W heat / Fan + 600w heatOption 3 -  Suitable for 1000W ducted electric cab heater this option has 4 relays and 2 x 4 position switches, one for fan control and one for heat control. The fan control switch has OFF / Low speed / Medium speed / High speed and the heat switch has OFF / 400W heat / 750W heat / 1000W heat