Description
Product Overview
The DaierTek 12V Door Pin Switch is engineered for reliable vehicle lighting control. Featuring a normally‑closed (NC) momentary ON/OFF design, the switch activates when the door or hood is opened and deactivates when closed, ensuring lights operate only when needed. Constructed from nickel‑plated iron, the contacts resist corrosion and maintain conductivity over thousands of cycles. A rubber waterproof cap protects the unit from moisture, making it suitable for marine and off‑road applications. Dimensions are compact at 1.57 x 0.73 inches, with a 0.37″ (9.5 mm) mounting hole that can be trimmed for a perfect fit. The package includes three switches and matching wires, ready for panel‑mount installation.
Usage
Designed for 12V DC vehicle systems, this switch is ideal for controlling hood lights, trunk illumination, dome lights, and auto‑notice indicators. Whether installed in a car, boat, or RV, the switch integrates seamlessly with existing wiring, providing a clean, momentary signal to the lighting circuit. Its panel‑mount style and flange connector allow easy placement on dashboards, door jambs, or custom panels. 
Why Choose Us
DaierTek combines robust materials with precise engineering to deliver a switch that endures harsh automotive environments. The nickel‑plated contacts ensure long‑term reliability, while the waterproof rubber cover guards against water ingress and dust. Each unit undergoes strict quality testing, guaranteeing consistent performance across the 20 A rating. Our customer support is ready to assist with installation guidance, ensuring a hassle‑free experience.
Key Features
- Nickel‑plated iron contacts for superior corrosion resistance
- Waterproof rubber cap protects against moisture and dust
- Normally‑closed design provides automatic light control
- Adjustable 0.37″ mounting hole for versatile installation
- Includes three switches and wiring for immediate deployment
FAQ
What voltage and current does the switch support?
The switch is rated for 12 V DC systems and can handle up to 20 A continuous current.
Can the switch be used in marine environments?
Yes, the waterproof rubber cover and corrosion‑resistant contacts make it suitable for boats and other wet applications.
Is the switch compatible with both cars and RVs?
Absolutely. It works with any 12V DC vehicle electrical system, including cars, trucks, RVs, and marine vessels.
How is the switch installed?
Mount the flange onto a panel using the 0.37″ hole, solder the provided wires to the contacts, and secure the rubber cap over the unit.
What does “normally closed” mean for operation?
In its default state the circuit is closed (lights off). When the door or hood opens, the switch opens, allowing current to flow and turning the light on.
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