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Grey rectangular electronic dome switch with blue actuator and screw terminals

Grote

Grote 44440 electronic dome switch 15 A 9 to 16 V DC car electronics accessory

SKU CH-Y34M-V4KGN

Electronic dome switch rated 15 A at 9 to 16 V DC with built-in timer, four-wire design that avoids tapping the air-brake system, and operation from -40 to 185 °F

  • TypeFuses & Accessories
  • Operates reliably from -40 °F to 185 °F
  • 15 A rating handles heavy dome-light loads
  • Built-in timer adds automatic shut-off convenience
  • Four-wire design avoids tapping the air-brake system
  • Screw terminals give secure, vibration-resistant connections

Grote 44440 Electronic Dome Switch

The Grote 44440 is a 15 A electronic dome switch designed for 9 to 16 V DC automotive systems. It provides a timed on/off function for dome lights without tapping into the air brake delivery system. Fleet technicians and vehicle upfitters use it to add reliable interior lighting control to heavy-duty trucks and equipment.

Thermals noise and power draw

The switch operates across a temperature range of -40 degrees F to 185 degrees F. As a solid-state electronic device with no moving parts, it produces no audible noise during operation. It draws up to 15 A at the rated DC voltage to power connected dome lamps, with the internal timer circuitry consuming negligible additional current.

Four-wire design with integrated timer

The defining feature is the four-wire design that includes an integrated timer, eliminating the need to splice into the air brake delivery circuit. It uses screw termination for secure connections and features a blue actuator with a gray body. Buyers needing a simple manual switch without timed automatic shut-off should select a different model.

Highlights

  • Operates reliably from -40 °F to 185 °F
  • 15 A rating handles heavy dome-light loads
  • Built-in timer adds automatic shut-off convenience
  • Four-wire design avoids tapping the air-brake system
  • Screw terminals give secure, vibration-resistant connections

Specifications

BrandGROTE
TypeFuses & Accessories

Questions about this item

How do I wire the four-wire Grote 44440 switch into my dome-light circuit without tapping the air-brake line?

Connect the four screw terminals — power in, switched output to the dome light, ground, and the timer signal wire — following the included diagram; the design eliminates any need to splice into the air-brake delivery system.

What maintenance will the Grote 44440 electronic dome switch need over time?

No scheduled maintenance is required; the sealed electronic timer and screw-terminal connections are rated for the full operating range of -40 °F to 185 °F, so only inspect wiring if a lamp fails.

At what current will the 15 A Grote 44440 switch hit its thermal limit during continuous use?

The switch is rated for a steady 15 A at 9–16 V DC; sustained loads at or above that level will cause the internal protection to trip first.

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