40Amp 12V 4 Pin Car Relay Waterproof And Dustproof For Motorcycle Truck Boat SPST No Heavy Duty Automotive Relay Built To Last For Headlamps And Engine Compartment Use

High-Performance 12V 4-Pin Relay for Automotive Circuits
✔️ 12V SPST-NO relay, 40A @14VDC, waterproof housing, copper pins

This rugged 12V four-pin automotive relay is designed to switch high-current devices in headlamps, engines, and other circuits in motorcycles, trucks, and boats. Built to withstand rain, snow, and dust, it delivers reliable operation in harsh environments.

✅ Contact form options: 1Z/1H/1D/1U; NO 40A @14VDC; NC 30A @14VDC
✅ Coil: 12V; max operate 7.8V; min release 1.2V
✅ Contact material: silver alloy with copper pins; low contact resistance
✅ Temperature range: -40°C to +85°C; waterproof insulated housing
✅ Dimensions: 1.09 x 1.09 x 1.6 inches (27.7 x 27.7 x 40.6 mm)

💡 What is a handy use for a 12V SPST NO auto relay?

This handy device makes it easy to control high-current loads with a small control signal. - Handy for headlamps, engine cooling fans, and fuel pumps in vehicles - Lets a dash switch or microcontroller drive a relay without handling heavy current directly - Improves reliability in rain and dust due to waterproof housing - Quick swaps in wiring harnesses for repairs or upgrades