Relay w/ Built-In Fuse 40A

When you need dependable performance for your 12V electrical system, the 40A relay with built-in fuse delivers maximum reliability with minimal hassle. Designed for automotive, marine, and universal applications, this all-in-one relay solution ensures stable current control while protecting your circuits with a built-in 30A or 40A fuse. Say goodbye to messy wiring and separate fuse holders, this relay streamlines your setup while offering long-term peace of mind.

Unlike standard relays, the 40A relay with built-in fuse integrates high-load capacity and built-in circuit protection in one compact housing. It’s a single pole, normally open (SPNO) relay that’s engineered to handle high current demands with ease. Whether you’re powering aftermarket lights, cooling fans, or audio systems, this unit simplifies installation and reduces points of failure, perfect for DIY enthusiasts and professionals alike.

This 40A relay with built-in fuse is universally compatible with 12V systems and built to automotive-grade standards. With corrosion-resistant terminals and a rugged plastic housing, it's built to withstand harsh environments, off-road, on-road, or marine. It's the reliable backbone your power distribution system needs.

Features:

• Built-In Fuse Design – Protects circuits without needing a separate fuse holder, saving time and space.

• High Current Capacity – Rated at 40 amps to support high-draw components like fuel pumps, horns, and light bars.

• 12V Universal Compatibility – Ideal for cars, trucks, motorcycles, boats, and custom wiring projects.

• Durable Construction – Features weather-resistant housing and robust terminals for long-lasting reliability.

• Simple SPNO Function – Single Pole Normally Open (SPNO) design ensures clean, efficient switching.

• Plug-and-Play Installation – Easy to integrate into existing 12V systems for fast project completion.

If you've ever chased down a blown fuse or struggled with complicated wiring, this 40A relay with built-in fuse eliminates that frustration. It’s engineered to streamline your setup, combining power switching and circuit protection into one reliable unit. Get cleaner installations, fewer connection points, and faster troubleshooting, because your time and performance matter.

Specifications: