Description
Product Overview
The Enafu rotary 3‑speed blower switch is a manual, touch‑activated control designed for 12 V automotive HVAC applications. Constructed with a solid copper contact material and a black plastic housing, it offers durability and reliable performance. The unit includes five spade terminals—three for fan speed leads (H, M, L), one power‑in (B), and one for clutch or thermostat (C). Its 1/4″ D‑shaft fits a standard plastic fan knob, providing a smooth rotary action across three positions.
Usage
This switch is suited for vehicles with existing three‑speed blower motors, such as many under‑dash A/C units. Install it in place of a worn or faulty switch to restore full fan speed control. It works with a variety of makes, including Honda, Freightliner, Kenworth, Mack and universal applications. Ideal for DIY enthusiasts and professional mechanics seeking a straightforward replacement.
Why Choose Us
Enafu is known for precision engineering and high‑quality components. The rotary switch features robust copper contacts for low resistance and long life, a corrosion‑resistant IP00 rating suitable for interior use, and a compact 2.8 x 1.3 x 1.26 in package for easy fitment. Each unit undergoes strict quality testing to ensure reliable operation in demanding automotive environments.
Key Features
- Manual touch‑activated rotary control with three fan speeds
- Copper contacts for superior conductivity and durability
- Five spade terminals for flexible wiring configurations
- Black plastic housing with a sturdy 1/4″ D‑shaft knob
- Compatible with 12 V systems and a wide range of vehicle makes
FAQ
Can this switch convert a single‑speed motor to three speeds?
No. The switch is intended for motors that already have three speed settings. It simply provides the control interface.
What wiring configuration is required?
Connect the H, M, and L terminals to the respective fan speed leads, B to the power source, and C to the clutch or thermostat circuit as specified in your vehicle’s wiring diagram.
Is the switch waterproof?
The IP00 rating indicates it is not protected against water ingress, so it should be installed in interior, dry locations only.
Will the knob fit my existing fan assembly?
The 1/4″ D‑shaft and 3/8″ threaded length are standard for most aftermarket fan knobs, ensuring a secure fit.
Is this product covered by a warranty?
Yes, Enafu offers a one‑year limited warranty against manufacturing defects.
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