12V 30/40A 5-Pin SPDT Automotive Relays – 10 Pack

Description

Control compatible high-current automotive and marine accessories with this 10-Pack of 12V 5-Pin SPDT Electrical Relays. Each relay allows a low-current control circuit to switch a higher-current electrical load, making the set suitable for auxiliary lighting, horns, cooling fans, pumps, compressors, alarms, and other compatible 12-volt equipment.

The single-pole, double-throw configuration provides both normally open and normally closed switching options. Each relay is rated for up to 30 or 40 amps, depending on the terminal and circuit configuration, supporting a wide range of vehicle electrical projects.

Suitable for cars, trucks, SUVs, off-road vehicles, boats, trailers, tractors, and utility equipment, this bulk relay set is ideal for repairs, replacements, custom wiring, and workshop inventory.

✨ Features

⚡ 12V Electrical Operation

Designed for compatible 12-volt DC automotive and marine systems.

Suitable for switching selected accessories powered by a vehicle battery.

🔄 SPDT Switching Configuration

The single-pole, double-throw design provides normally open and normally closed outputs.

Allows flexible control for multiple compatible circuit designs.

🔌 Five-Pin Relay Design

Features a standard five-pin electrical configuration.

Works with compatible relay sockets, terminals, and wiring harnesses.

💪 30/40-Amp Capacity

Supports compatible electrical loads up to the relay’s specified terminal rating.

Ideal for selected lighting, fan, horn, pump, and accessory circuits.

📦 Convenient 10-Pack

Includes ten electrical relays for multiple installations or replacements.

Useful for workshops, fleet maintenance, custom projects, and spare-parts storage.

💡 Auxiliary Lighting Applications

Suitable for compatible LED light bars, driving lights, fog lights, and work lamps.

Allows low-current switches to control higher-current lighting circuits.

🚗 Automotive Applications

Useful for cars, trucks, SUVs, off-road vehicles, tractors, and trailers.

Can support selected horns, cooling fans, pumps, compressors, and alarms.

🚤 Marine Compatibility

Suitable for compatible 12V boat and marine electrical projects.

Marine installations may require sealed connectors and additional moisture protection.

🧰 Professional & DIY Use

Ideal for automotive electricians, mechanics, workshops, and experienced DIY installers.

A practical component for repairs, upgrades, and custom wiring systems.

📋 Specifications

Product Type: Automotive Electrical Relay Set
Relay Configuration: SPDT — Single Pole, Double Throw
Pin Count: 5 Pins
Operating Voltage: 12V DC
Current Rating: 30/40 Amps, Depending on Circuit Configuration
Package Quantity: 10 Relays
Switching Options: Normally Open & Normally Closed
Suitable Applications: Auxiliary Lights, Horns, Fans, Pumps, Compressors, Alarms & Compatible Accessories
Suitable Vehicles: Cars, Trucks, SUVs, Boats, Trailers, Tractors & Utility Equipment
Recommended Use: Electrical Repairs, Accessory Installation, Custom Wiring & Relay Replacement

⚠️ Compatibility & Installation Note

Confirm the relay pin layout, coil voltage, terminal ratings, accessory current draw, fuse size, wire gauge, and socket compatibility before installation. Relay terminal arrangements can vary, so follow the markings shown on each relay rather than relying only on wire color or socket position.

Disconnect the battery before wiring. Install a correctly rated fuse close to the power source, use secure insulated terminals, and route wiring away from sharp edges, moving parts, exhaust components, and high-temperature areas.

Do not exceed the relay’s rated current. Marine or exterior installations may require waterproof relay sockets, sealed connections, and corrosion-resistant terminals.

⭐ Why You’ll Love It

✅ ⚡ Designed for Compatible 12V Systems
✅ 🔄 Provides SPDT Switching Control
✅ 🔌 Features a Standard Five-Pin Design
✅ 💪 Supports 30/40-Amp Applications
✅ 📦 Includes Ten Electrical Relays
✅ 💡 Ideal for Auxiliary Lighting Circuits
✅ 🚗 Suitable for Multiple Vehicle Types
✅ 🚤 Useful for Compatible Marine Projects
✅ 🧰 Great for Repairs and Custom Wiring
✅ 🔧 Keeps Spare Relays Ready for Replacement