Sapphire Energy
DC Circuit Breakers (Marine Rated)
DC Circuit Breakers (Marine Rated)
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Manual Reset Circuit Breaker (100A / 200A / 300A)
A serious upgrade over the typical low-cost breakers. These heavy-duty manual reset circuit breakers are built for reliable high-current protection in demanding 12V and 24V DC systems.
Each unit uses robust internal components and proper contact pressure to deliver consistent performance — without the nuisance tripping and premature wear commonly seen in cheaper alternatives. It's quality you can actually feel.
Built for Real-World Use
An increased pressure, heavy-duty internal spring, ensures firm contact engagement, reduced arcing, and long service life — especially under sustained high loads.
Why You’ll Love It
- Selectable ratings: 100A / 200A / 300A (choose your variant)
- Nickel-plated brass studs (M8 / 5⁄16") for excellent conductivity
- Stainless steel nuts & lock washers for corrosion resistance
- Manual reset lever — simple, reliable operation
- Line & Load clearly marked for quick installation
- Waterproof construction suitable for marine environments
- Ignition protected — safe for enclosed or engine bay installs
- Heavy-duty internal design for long-term durability
Built Better Than Budget Breakers
Not all breakers are created equal. Many low-cost units use undersized internals, weak contact pressure, and poor-conductivity hardware — leading to heat buildup, voltage drop, and early failure.
These breakers combine high-conductivity brass studs with corrosion-resistant stainless hardware, giving you dependable protection and long-term performance where it matters most.
Installation Tip
Install as close as possible to the power source (battery or busbar) to properly protect downstream wiring and equipment.
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