RGL RTT7105-12V High Current 80A Automotive Relay 4-Pin JD1912 – 12VDC
80A Heavy-Duty Automotive Relay – RGL RTT7105-12V JD1912 4-Pin 12VDC
Upgrade your vehicle's electrical system with the RGL RTT7105-12V 80 Amp automotive relay, engineered for high-current applications that demand reliable, heavy-duty switching. Unlike standard 30A or 40A relays, this JD1912 4-pin relay handles up to 80 Amps, preventing voltage drop, switch burnout, and electrical failures on power-hungry accessories.
Why Choose the RGL RTT7105 80A Relay?
This 12V DC SPST relay is built for automotive enthusiasts, mechanics, and DIY installers who need dependable performance for high-load circuits. The durable red housing ensures easy identification in your fuse box or engine bay, while copper alloy terminals deliver superior conductivity and corrosion resistance.
Key Features & Benefits
- 80A High Current Capacity: Safely switch heavy loads without overheating or contact welding
- Standard 4-Pin SPST Configuration: Fits most automotive relay sockets and fuse boxes
- 12V DC Coil Voltage: Compatible with all 12-volt automotive electrical systems
- Copper Alloy Terminals: Enhanced conductivity and long-term reliability
- Flame Retardant Housing: Red plastic shell for safety and easy identification
- Normally Open (NO) Design: Circuit activates only when energized
Common Applications
This heavy-duty car relay is essential for installing and controlling:
- Electric cooling fans and radiator fans
- High-powered HID and LED headlight kits
- Air horns and train horns
- Heavy-duty fuel pumps and water pumps
- Car audio amplifiers and subwoofer systems
- Winches, off-road lighting, and auxiliary power circuits
- Electric heaters and defrosters
4-Pin Relay Wiring Guide
Standard automotive relay pinout for easy installation:
- Pin 30: High Power Input (Battery Positive +)
- Pin 87: High Power Output (To Load/Accessory)
- Pin 85: Coil Ground (Chassis Ground)
- Pin 86: Coil Trigger (Switch Positive +)
Technical Specifications
| Specification | Value |
| Model Number | RTT7105-12V / JD1912 |
| Coil Voltage | 12V DC |
| Rated Current | 80 Amps |
| Contact Configuration | SPST (Single Pole Single Throw) – Normally Open |
| Number of Pins | 4-Pin |
| Terminal Size | 6.3mm / 9.5mm (High Current Pins) |
| Housing Material | Flame Retardant Plastic |
| Color | Red |
| Weight | 28 grams |
Package Contents
- 1 x RGL RTT7105-12V 80A 4-Pin Automotive Relay (JD1912)
Installation Tips
Always use appropriate gauge wire for 80A applications (minimum 8 AWG recommended). Install inline fuses close to the battery for safety. Ensure proper grounding and secure all connections to prevent voltage drop and heat buildup.
Upgrade to professional-grade electrical control with the RGL RTT7105 80A relay – trusted by automotive technicians across Pakistan for reliable, high-current switching.