Engineered for demanding automotive environments, this waterproof automotive relay delivers reliable 40A switching for 12V or 24V systems. Its sealed IP67-rated housing and durable copper terminals ensure consistent performance in wet, dusty, or high-vibration conditions, preventing electrical failures and extending component life. Features and Benefits
- IP67 Waterproof & Dustproof Housing - Provides complete protection against moisture, dirt, and grime for reliable operation in engine bays and underbody applications.
- High-Current 40A Capacity - Handles demanding loads from lighting, winches, and compressors without overheating or voltage drop.
- Premium Copper Terminals with Harness - Ensures maximum conductivity and corrosion resistance, while the included socket with pre-wired harness simplifies installation.
- Dual Voltage 12V/24V Compatibility - Versatile design works with standard passenger vehicles, trucks, and heavy-duty 24V commercial or marine systems.
- Robust 4-Pin & 5-Pin Relay Options - Offers flexibility for various circuit configurations, including changeover (5-pin) or simple on/off (4-pin) switching. Applications
- Off-Road & 4x4 Accessories - Power auxiliary LED light bars, air compressors, or winches with confidence in muddy or wet conditions.
- Commercial Vehicle Upfits - Reliably control strobe beacons, PTO systems, or hydraulic lifts on trucks and vans.
- Marine & Powersports - Ideal for bilge pumps, navigation lights, or audio systems on boats, ATVs, and motorcycles exposed to the elements.
- General Automotive Upgrades - A dependable solution for installing aftermarket horns, cooling fans, or fuel pumps.
Terminal Material: Copper. Contact Material: Silver Alloy (inferred for high power). Coil Power Consumption: ~1.6 W (typical, 12V coil). Operating Voltage: 12 V DC, 24 V DC. Contact Configuration: 4-pin (SPST-NO), 5-pin (SPDT). Dielectric Strength: >1000 V AC (typical). Electrical Life: >10^5 cycles @ rated load (typical). Insulation Resistance: >100 MΩ (typical). Maximum Continuous Current: 40 A. Mechanical Life: >10^7 cycles (typical). Operating Temperature Range: -40°C to +85°C (typical). Relay Mounting: Socket bracket. Sealing Standard: IP67 (inferred from "Waterproof"). Socket Type: Integrated harness socket. Socket Wire Gauge: 14-18 AWG (inferred from harness). Terminal Finish: Black, Red (Nickel-plated). Contact Material: Copper Alloy. Housing Material: Engineering Plastic (PA66 or equivalent inferred). Terminal Material: Copper. Coil Power Consumption: ~1.6W @ 12V, ~3.2W @ 24V (typical). Coil Voltage: 12V DC / 24V DC. Operating Temperature Range: -40°C to +85°C (typical automotive). Socket Wire Gauge Compatibility: 12-18 AWG. Maximum Continuous Current Rating: 40A. Contact Configuration (4-Pin): Normally Open (SPST). Contact Configuration (5-Pin): Changeover (SPDT). Contact Resistance: ≤ 50 mΩ (typical). Dielectric Strength: ≥ 1000V AC (typical for automotive relays). Electrical Life (at rated load): ≥ 100,000 cycles (typical). Mechanical Life: ≥ 1,000,000 cycles (typical). Mounting Type: Socket mount via harness bracket. Product Type: Electromechanical Automotive Relay. Sealing Type: Waterproof (IP67 or equivalent inferred). Socket Pin Count: Matches relay (4 or 5 pin). Socket/Harness Included: Yes. Terminal Color Coding: Black (85/86), Red (30/87/87a). Terminal Plating: Tin-plated. Vibration Resistance: Compliant with automotive standards (e.g., ISO 16750-3). Q: What are the exact specifications for this waterproof automotive relay? A: This is a high-power voltage relay rated for 40A. It is designed for 12V and 24V systems and comes in both 4-pin and 5-pin configurations with a harness and socket for easy installation.. Q: How durable and waterproof is this 40A car relay? A: This relay is built for durability with a waterproof housing to protect against moisture and dust in harsh automotive environments. The black and red copper terminals ensure a strong, corrosion-resistant connection for long-term reliability.. Q: Can this 12V/24V auto relay be used for aftermarket lights or a winch? A: Yes, this 40A relay is ideal for high-current applications like aftermarket LED light bars, fog lights, or small winches. The included harness and socket make it a direct plug-and-play solution for many common automotive upgrades.. Q: Does this automotive relay with harness come with any warranty or guarantee? A: While specific warranty terms are set by the seller, this product is manufactured to high standards for reliable performance. It is designed to be a dependable component for your vehicle's electrical system.. Q: Is this a good value compared to other automotive relays? A: Yes, this offers excellent value for DIY enthusiasts and professionals seeking quality without premium brand pricing. It delivers reliable performance for regular use and includes a convenient harness and socket, which are often sold separately..