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JD1912 4-Pin 40A 12V Automotive Relay Harness Kit Specification
- 12AWG Tinned Copper Wire: Pin 30 Blue,To Positive Trigger Source
- 12AWG Tinned Copper Wire: Pin 87 Red,To Device
- 16AWG Tinned Copper Wire: Pin 85 Black,To Positive Trigger Source
- 16AWG Tinned Copper Wire: Pin 86 White,To Ground
- Life Expectancy Electrical: 100,000 Operations (at30 Operations/minute)
- Life Expectancy Machanical:10,000,000 Operations
- Temperature Range: -30 ~ +80 degrees Celsius
- Vibration Resistance: 10~55Hz, 1.5mm
- Shock Resistance: Operations Extremes: 10g. Damage Limits: 100g
- Hunidity: 40% ~ 85%
- Insulation Resistance: 100mΩ Min at500VDC
- Dielectric Strength Between Open Contacts: 500VAC (for one minute/sec)
- Between Contactw and coil: 750AC (for one minute/sec)
- Operate Time: 7ms Release Time: 5ms
JD1912 Automotive Relay Switch Kit
- Nominal Coil Voltage: 12VDC
- Coil Power: 1.8 W
- Coil Resistance: 80 Ω
- Must Operate Voltage: 6~8 V DC
- Must Release Voltage: 0.6~3.6 V DC
- Maximum Applied Voltage: 15.6 V DC
- Contact Ratings: NO 40A 14V DC
- Contact Resistance: 100mMAX (at6VDC 1A)
- Max Switching Current: 40A
- Max Switching Power: 560 W
Sealed 4 Terminals
- Reliable relay construction
- Make sure follow the wiring diagram in the picture. Be gentle when inserting the relay into the socket
Durable Insulation Material Shell
- Work in any harsh weather and conditions.
- Life Expectancy Electrical: 100,000 Operation,
- Life Expectancy Mechanical: 10,000,000 Operation.
12&16 AWG Tinned Copper Wires
- The primary leads Blue & Red are 12AWG and Black & White are 16AWG. The tinned copper wires are durable and reliable.
- The wires harness are colored for easy installation
4-Pin SPST Design
- 4-Pin and SPST design,Single Pole Single Throw
- Compatible with devices equipped with a 12 Volt DC power source.
Kevin B.
Reviewed in the United States on January 31, 2025
Check your wiring! I had to swap 3 wires to match the C/B numbering, I'm glad at least they posted that right! don't go by color coding and their drawing instructions! all in all it works.
Customer
Reviewed in the United States on January 18, 2025
Worked great! Used to isolate high and low beam headlights on my 86 Suburban. Good product, good price. Recommend.
Lee
Reviewed in the United States on December 30, 2024
I have not used these yet but I purchased them based on the 12 ga wiring for the load side of the relay. I am pleasantly surprised as they appear well made and the wiring size is as advertised, heavier than the others I saw.
DLBear
Reviewed in the United States on December 27, 2024
Well built, quality components. Always nice to have these on-hand for 12V wiring projects on motorcycles/toys/pickup. Having the wiring harness is a bonus that will make efforts easier too.I appreciate receiving these through the Vine program & will update if anything changes.
BR
Reviewed in the United States on December 26, 2024
This relay switch kit is well-designed with heavy-duty wiring and clear instructions. The 12AWG and 16AWG wires ensure solid connections, while the interlocking socket adds stability. The SPST 4-pin design is ideal for straightforward installations, and the 40A capacity makes it compatible with a wide range of devices. This kit is a great value for anyone needing a durable and efficient relay system for their vehicle or equipment.
Amanda
Reviewed in the United States on November 29, 2024
The Automotive Relay Switch Kit is a high-quality and dependable solution for any automotive wiring needs. The 4-pin 40A 12V relays are robust and work flawlessly for my car's electrical upgrades. The included harness sockets and tinned copper wires are durable and easy to work with, ensuring a secure and professional installation.I appreciate the SPST design, which makes it versatile for various applications across cars, trucks, motorcycles, and even boats. The pack of two is great value for the price, and the components feel well-constructed and reliable. If you’re tackling an automotive or marine wiring project, this kit is an excellent choice!
OO
Reviewed in the United States on November 25, 2024
I am adding some lights to my tractor and needed a relay to support the power requirements. I did not want to tap into the existing light wiring and add the additional electrical load to the wires that were not rated for the additional lights. I can run power from the battery for the lights and tap into the original light wires for activate the relay. The wires on the relay are a good gauge and will support my power needs. This is a four wire relay.
W. Vincent
Reviewed in the United States on November 17, 2024
The 12v outlets (cigarette lighter style) in my F150 are always on, the trouble with that is if I leave a USB charger connected it's a constant drain on the battery. So I'm rewiring them with these relays so that they'll only come on with the key, allowing me to leave charge adapters connected without worrying about any extra drain on the battery - especially important in the cold winter weather that'll be here any day now!The relays come plugged into sockets with pre-stripped pigtails making them easy to wire in, and if the relay fails some time in the future, it'll be a simple matter or replacing just the relay, not the whole wiring assembly.Great for my use case, or if you wanted to wire in some high-power LED light bars, etc, so you don't have to run full high amperage power through the switch.
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