12V–48V High-Amp Manual Reset Universal Circuit Breaker (100A / 150A / 200A / 300A)

Understanding the Universal Circuit Breaker

This heavy-duty manual reset circuit breaker is a must-have for any serious 12V or 24V setup. Designed for high-current applications, it protects your wiring, batteries, and gear from overloads and short circuits while keeping everything neat and serviceable.

Perfect for 4WDs, touring rigs, campers, caravans, boats, solar setups, audio systems and winches. When something goes pear-shaped, the breaker trips instantly — no blown fuses, no mess. Fix the issue, hit the reset button, and you’re back in business.

Built with a tough, heat-resistant housing and solid copper alloy studs, this breaker is made to handle harsh Aussie conditions. Fully sealed and splash-resistant, it’s suitable for engine bays, battery boxes and marine environments.

Ideal for anyone sick of spaghetti wiring and disposable fuses — clean, reliable power protection done properly.

Available current ratings:
• 100A
• 150A
• 200A
• 300A

Key Features:
• Manual reset button – no fuse replacement required
• High-amp protection for 12V, 24V and 48V systems
• Protects against overload and short circuit
• Heavy-duty construction with copper alloy terminals
• Splash-resistant housing for harsh environments
• Keeps wiring tidy and easy to diagnose
• Universal fit – suits automotive, marine and solar setups

Applications:
• 4WD & touring vehicles
• Campers & caravans
• Boats & marine systems
• Winches & inverters
• Audio & accessory power distribution
• Solar and auxiliary battery systems

If you’re building a proper power setup, this is one of those parts every bloke should have in the kit.
 

What is a Universal Circuit Breaker?

A Universal Circuit Breaker is an essential protective device that safeguards electrical systems from overload and short circuits. It operates within a voltage range of 12V to 48V, making it versatile for various applications. This product is available in multiple amperage ratings, including 100A, 150A, 200A, and 300A, which ensures that users can choose the right break point suitable for their equipment. Its manual reset feature is particularly beneficial; it allows users to restore power quickly after a trip, minimizing downtime and improving efficiency.

Why Choose High-Amp Ratings?

Choosing a high-amp rating for your circuit breaker is crucial because it determines how much current the breaker can handle before it trips. For example, a 300A breaker is ideal for high-demand applications, such as power distribution boards or industrial machinery. However, if a 100A breaker fits your needs, it will prevent overcurrent while being more cost-effective. Therefore, understanding the demands of your system will help you select the perfect universal circuit breaker.

Installation and Safety Tips

Installing a Universal Circuit Breaker is straightforward, but safety should always be the top priority. First, ensure that you turn off the power before installation. Proper wiring according to the manufacturer’s instructions is essential for performance. Additionally, because this breaker is a reset type, familiarize yourself with the reset process after a trip. This knowledge is important for ensuring continuous operation of your electrical system, so you can get back to work with minimal interruptions.