LiTime 250A DC Circuit Breaker 12–48V Surface Mount with M10 (3/8") Posts — Resettable, Corrosion-Resistant

LiTime 250A DC circuit breaker is a surface-mount protective switch for 12–48V systems, built with M10 (3/8") posts to safeguard LiFePO4 batteries and DC circuits from overloads and short circuits.

This compact, high-current breaker is designed for vehicle, marine, and solar installations where dependable DC protection is essential. With a robust build and simple mounting, it fits into systems powered by LiFePO4 or other 12–48V battery banks and cuts power cleanly when a fault appears. The device emphasizes easy installation, corrosion-resistant materials, and broad compatibility so you can add a safety layer without complex wiring or special tools.

How does this breaker protect my 12–48V setup?

When current exceeds the 250A threshold or a short occurs, the breaker opens the circuit to prevent damage to wiring, batteries, and connected equipment. It responds quickly to overcurrent conditions and is rated for DC use across typical battery voltages.

• Automatic trip action under sustained overcurrent.
• Manual reset capability after fault removal for convenient reuse.
• M10 (3/8") posts provide secure high-current connections.
• Suitable across the 12–48V DC range common to vehicles, boats, and off-grid systems.

What makes installation straightforward for non-professionals?

The breaker uses a surface-mount footprint and standard M10 studs so you can bolt it into place and attach cable lugs without special adapters. Clear polarity and post access reduce installation time and help avoid common wiring mistakes.

• Surface-mount design for easy panel or bulkhead placement.
• Standard 3/8" posts accept common lug sizes and fasteners.
• No special calibration or tools required beyond basic hand tools.
• Durable housing simplifies placement in engine rooms or battery bays.

Is this breaker suitable for marine and solar use?

Yes—its materials and construction are selected to resist oxidation and handle vibration-prone environments, making it a practical choice for boats, RVs, and stationary solar arrays. It supports systems using LiFePO4 batteries where consistent DC protection is required.

• Corrosion-resistant components for humid or salty conditions.
• High-current rating for alternators, inverters, and charge controllers.
• Works with LiFePO4 battery chemistries common in modern installs.
• Compact profile preserves panel space in tight installations.

What reliability and assurance does the product offer?

Constructed from quality materials and designed for repeated use, the breaker aims to deliver long service life under typical DC loads. Manufacturer coverage includes product liability insurance effective May 22, 2026, adding a layer of post-purchase assurance.

• Robust materials resist wear and oxidation over time.
• Engineered for repeated trip/reset cycles without degradation.
• Backed by product liability insurance for added confidence.
• Simple mechanical design reduces failure points.

Who is this for: This LiTime 250A breaker is aimed at DIYers, electricians, and system integrators installing or upgrading 12–48V battery systems—especially in cars, trucks, boats, RVs, and small off-grid solar setups using LiFePO4 batteries. Choose it when you need a high-current, surface-mount DC protection device that’s easy to fit, rugged in real-world conditions, and compatible with standard M10 cable terminations.