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4 PIN Automotive Relay 12v 30A Normally Open + 30A Fuse

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4 PIN Automotive Relay 12v 30A Normally Open + 30A Fuse

4 PIN Automotive Relay 12v 30A Normally Open + 30A Fuse

📝 4 Pin Automotive Relay 12v 30A Normally Open + 30A Fuse

This 4 pin 12v automotive relay is designed to handle high-current switching safely and reliably in vehicle electrical systems. Supplied with a built-in fuse socket and 30A blade fuse, it provides a compact, all-in-one solution for controlling accessories while protecting circuits from overload.

Ideal for automotive, caravan, and off-road applications, this relay is commonly used for lighting circuits, fans, horns, wipers, pumps, speakers, and other 12v accessories where dependable switching is required.


⭐ Essential Benefits

30A high-current capability – suitable for demanding automotive accessories.
Normally open (NO) operation – circuit closes only when the relay is energised.
Integrated fuse socket – includes a 30A blade fuse, eliminating the need for a separate holder.
Pre-wired relay harness – colour-coded wires for fast, clear installation.
Compact space-saving design – combines relay and fuse protection in one unit.
Interlocking socket design – allows multiple relays to be clipped together neatly.
Metal mounting bracket – enables secure and straightforward mounting.


⚙️ Functionality

This SPST (single pole, single throw) normally open relay activates when 12v power is applied to the coil, allowing high-current loads to be switched using a low-current trigger circuit.

The integrated fuse socket protects the load circuit, while the colour-labelled wiring harness simplifies correct connections for power, ground, trigger, and output. The interlocking socket edges allow multiple relays to be grouped together for clean, professional wiring layouts.


🔌 Applications

Driving lights and light bars
Fog lamps and work lights
Cooling fans and pumps
Wipers and starter circuits
Speakers and audio accessories
Traction control and auxiliary systems


🧰 Installation Difficulty

🟢 2/5 (Easy)
Straightforward wiring using the supplied harness and standard automotive connections.


🔍 Features

4 pin automotive relay
Normally open (NO) contact configuration
Built-in fuse holder with 30A blade fuse
Colour-coded relay harness
Interlocking relay socket design
Metal mounting bracket


📊 Specifications

Specification Detail
Relay type SPST normally open
Voltage 12v DC (max 14v)
Maximum switching current 30A
Contact material AgSnO12
Pins 4 pin
Fuse rating 30A blade fuse
Operating temperature –40°C to +85°C

📦 What’s Included

1 × 4 pin 12v 30A automotive relay
1 × relay wiring harness
1 × 30A blade fuse


🙌 Why Choose This Product?

This relay offers a reliable, space-efficient way to control high-current accessories while protecting your wiring. With an integrated fuse, colour-coded harness, and modular socket design, it’s ideal for both DIY builds and professional automotive installs.


🚀 Our Promise

Order today for same-day dispatch and explore our full range of automotive electrical components and accessories.

$4.34

Original: $14.46

-70%
4 PIN Automotive Relay 12v 30A Normally Open + 30A Fuse

$14.46

$4.34

Product Information

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Description

📝 4 Pin Automotive Relay 12v 30A Normally Open + 30A Fuse

This 4 pin 12v automotive relay is designed to handle high-current switching safely and reliably in vehicle electrical systems. Supplied with a built-in fuse socket and 30A blade fuse, it provides a compact, all-in-one solution for controlling accessories while protecting circuits from overload.

Ideal for automotive, caravan, and off-road applications, this relay is commonly used for lighting circuits, fans, horns, wipers, pumps, speakers, and other 12v accessories where dependable switching is required.


⭐ Essential Benefits

30A high-current capability – suitable for demanding automotive accessories.
Normally open (NO) operation – circuit closes only when the relay is energised.
Integrated fuse socket – includes a 30A blade fuse, eliminating the need for a separate holder.
Pre-wired relay harness – colour-coded wires for fast, clear installation.
Compact space-saving design – combines relay and fuse protection in one unit.
Interlocking socket design – allows multiple relays to be clipped together neatly.
Metal mounting bracket – enables secure and straightforward mounting.


⚙️ Functionality

This SPST (single pole, single throw) normally open relay activates when 12v power is applied to the coil, allowing high-current loads to be switched using a low-current trigger circuit.

The integrated fuse socket protects the load circuit, while the colour-labelled wiring harness simplifies correct connections for power, ground, trigger, and output. The interlocking socket edges allow multiple relays to be grouped together for clean, professional wiring layouts.


🔌 Applications

Driving lights and light bars
Fog lamps and work lights
Cooling fans and pumps
Wipers and starter circuits
Speakers and audio accessories
Traction control and auxiliary systems


🧰 Installation Difficulty

🟢 2/5 (Easy)
Straightforward wiring using the supplied harness and standard automotive connections.


🔍 Features

4 pin automotive relay
Normally open (NO) contact configuration
Built-in fuse holder with 30A blade fuse
Colour-coded relay harness
Interlocking relay socket design
Metal mounting bracket


📊 Specifications

Specification Detail
Relay type SPST normally open
Voltage 12v DC (max 14v)
Maximum switching current 30A
Contact material AgSnO12
Pins 4 pin
Fuse rating 30A blade fuse
Operating temperature –40°C to +85°C

📦 What’s Included

1 × 4 pin 12v 30A automotive relay
1 × relay wiring harness
1 × 30A blade fuse


🙌 Why Choose This Product?

This relay offers a reliable, space-efficient way to control high-current accessories while protecting your wiring. With an integrated fuse, colour-coded harness, and modular socket design, it’s ideal for both DIY builds and professional automotive installs.


🚀 Our Promise

Order today for same-day dispatch and explore our full range of automotive electrical components and accessories.