iRhapsody 12V 4-Pin Waterproof Automotive Relay Kit — 5-Pack 80A Switching, Heavy-Duty Wire

A rugged 12V DC, 4-pin waterproof automotive relay rated for 80A switching with heavy-gauge wiring, supplied as a 5-piece kit for reliable vehicle and marine electrical control.

This iRhapsody relay kit provides a compact, durable switching solution for high-current circuits such as auxiliary lights, electric fans, winches, and other 12V accessories. Built for harsh environments, the relay combines water-resistant casing, fast response times, and robust electrical ratings so you can route high loads through a small control circuit without running oversized switches. The kit contains five relays and is engineered for long electrical and mechanical life in automotive conditions.

How much current and power can this relay handle?

The relay switches a nominal maximum of 80A at 14V DC, with a peak switching power rating up to 560W. It’s designed for high-current applications where the control side only needs to carry a low coil current while the load side handles heavy draws.

• Contact rating: NO 80A at 14V DC
• Max switching current: 80A; max switching power: 560W
• Contact resistance: ≤100 mΩ (measured at 6V DC, 1A)

What environmental and durability specs ensure long-term use?

Engineered for vehicle and outdoor use, the relay tolerates wide temperatures and resists vibration and shock. Its water-repellent housing and dustproof construction lower the risk of corrosion and contamination, but it is not rated for continuous submersion.

• Operating temperature range: -30°C to +80°C
• Vibration resistance: 10–55 Hz, 1.5 mm amplitude; shock endurance to operational extremes of 10g
• Humidity range: 40%–85% and insulation resistance ≥100 MΩ at 500 VDC

How fast and reliable is the switching performance?

The relay operates with millisecond response times and is built for many cycles of use, making it suitable for repeated switching tasks like fan control or intermittent lighting. Electrical and mechanical life ratings indicate the relay will handle frequent operation over its service life when used within rated parameters.

• Operate time: approximately 7 ms; release time: around 5 ms
• Coil power: 1.8 W with 80 Ω nominal coil resistance
• Electrical life: ~100,000 operations at 30 ops/min; mechanical life: ~10,000,000 operations

Who should choose this relay? This iRhapsody 4-pin 12V waterproof relay kit is aimed at DIYers, mechanics, fleet technicians, and marine or off-road enthusiasts who need a compact, dependable high-current switch. If you’re wiring auxiliary systems—spotlights, compressors, winches, or aftermarket electrical accessories—and want a low-voltage control circuit to trigger a heavy-duty load, this relay gives a balance of performance, environmental resistance, and long cycle life. Make sure to size wiring and fuses appropriately, keep usage within the rated 80A limit, and follow proper wiring diagrams to ensure safe installation.

Package includes five 12V DC, 4-pin waterproof relays. Refer to the wiring diagram and vehicle manufacturer guidance when integrating into factory systems or aftermarket installations.