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💡 Power up your gear with confidence—see the switch in action!
The HD Switch 12V 40A Waterproof Relay is a rugged, IP68-certified SPDT relay featuring an integrated LED indicator for real-time diagnostics. Designed for heavy-duty applications like lawn mowers, tractors, and marine equipment, it delivers reliable 40-amp switching with silver alloy contacts. Each unit includes dielectric grease to prevent corrosion, ensuring long-lasting performance in demanding environments.
| ASIN | B08FTK8LCW |
| Best Sellers Rank | #247,560 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #415 in Electromechanical Relays |
| Brand | HD Switch |
| Coil Resistance | 40 Ohms |
| Coil Voltage | 12 Volts |
| Connector Type | Solder |
| Contact Current Rating | 40 Amps |
| Contact Material | Silver Alloy |
| Contact Type | Spdt |
| Current Rating | 40 Amps |
| Date First Available | August 13, 2020 |
| Item Weight | 1.44 ounces |
| Manufacturer | HD Switch |
| Maximum Switching Current | 40 Amps |
| Mounting Type | Through Hole Mount |
| Operation Mode | Automatic |
| Package Dimensions | 5.71 x 2.83 x 1.42 inches |
| Specification Met | Ip68 |
| Wattage | 3.24 watts |
D**N
Great for replacing a hardwired product
I had to replace my OEM relays on my boat due to corrosion. These are well made, have great wiring connections and sockets and work perfectly.
A**R
Easy to use!
Function exactly as described!
D**N
It fit and was the right switch.
every thing worked out fine.
J**K
Works with my installed electric fuel pump on my pickup.
I bought it for a spare, tried it after removing the original and it works great. Just wanted to have a spare incase needed.
T**N
Good quality direct fit replacement
My street rod has 2 of these relays. One to turn on the radiator cooling fan when a temperature is reached and the second as an override when the AC is turned on. I was experiencing intermittent fan operation so replaced both. Easy plug and play replacement. Like that these have a led indicator light when activated and that both are sealed from the elements as they are exposed to water, heat, and dirt. My issue was actually in the temp sender and not the relays but it is good to know that these shouldn’t be a future issue.
E**H
just what I needed
works great
T**S
RV or automotive relay.
This 40 amp control relay works great.
B**K
Just what I wanted
Just what I wanted
Trustpilot
4 days ago
1 week ago