iRhapsody 12V 5-Pin Automotive Relay Kit — 6-Pack 80A SPDT Relays with Heavy-Duty Pre-Wired Pigtails, 12/16 AWG

iRhapsody's 12V 5-pin relay kit is a six-pack of heavy-duty SPDT automotive relays with pre-wired pigtails rated for up to 80A switching, built for high-current accessories and robust vehicle installations.

This bundle provides six identical 12 V DC relays with a five-pin (SPDT) layout and a molded pigtail harness. Each relay is designed for high switching loads (80A max) and long operational life, with tinned-copper wiring in 12 AWG and 16 AWG sizes for improved conductivity and corrosion resistance. The kit includes commonly used terminal assignments (30 = battery, 85 = ground, 86 = trigger, 87 = normally open output, 87a = normally closed output) for straightforward integration into automotive and marine electrical systems.

How sturdy and long-lasting are these relays?

These relays are engineered for extended mechanical and electrical endurance. They offer a rated electrical life of approximately 100,000 operations under specified conditions and a mechanical life up to ten million cycles, helping ensure reliable switching in repeated-use applications.

• Electrical life expectancy: ~100,000 operations (at 30 ops/min)
• Mechanical life expectancy: up to 10,000,000 operations
• Shock and vibration resistance suitable for vehicle environments
• Operating temperature range from -30°C to +80°C

What electrical performance and safety ratings should I expect?

Each relay features a nominal 12 V coil and low coil power draw, making it compatible with common automotive electrical systems. Insulation and dielectric specifications help protect contacts and coil from common voltage stresses encountered in vehicle circuits.

• Nominal coil voltage: 12 V DC, coil power ~1.8 W, coil resistance ~80 Ω
• Contact rating: NO 80A at 14 V DC, max switching power ~560 W
• Dielectric strength: 500 VAC between open contacts; 750 VAC between contact and coil
• Insulation resistance min: 100 MΩ at 500 V DC

How do the pigtail harness and pin assignments simplify installation?

The kit’s pre-wired pigtails reduce assembly time and lower risk of wiring errors. Color-coded leads correspond to standard relay terminals, making it easier to wire accessories like lights, winches, pumps, and auxiliary circuits with correct polarity and function.

• Color-coded wires: red (30), black (85 ground), white (86 trigger), blue (87 NO), yellow (87a NC)
• Includes 12 AWG and 16 AWG tinned-copper conductors for durability and corrosion resistance
• Recommended to keep load below rated capacity (stay ~10–15% under max) and tighten connections
• Typical operate/release times: ~7 ms operate, ~5 ms release for responsive switching

Which applications are these relays best suited for?

These relays are intended for high-current automotive and similar 12 V systems where reliable switching and resistance to vibration and environmental conditions are required. They work well for lighting, motors, pumps, and aftermarket accessories that demand robust contact capacity.

• Ideal for driving auxiliary lights, horns, winches, and fuel or water pumps
• Useful in marine, off-road, RV, and industrial low-voltage projects
• Designed to handle transient conditions within vehicle electrical systems

Who is this for: Installers, automotive hobbyists, fleet technicians, and DIYers looking for a ready-to-use pack of reliable 12 V SPDT relays with pigtail harnesses. If you need high-current switching with easy wiring and durable construction for vehicles, boats, or equipment, this six-pack provides spare units for multiple installations or replacements.