Marine & Automotive Circuit Breaker Manufacturer & Supplier

Factory-direct DC circuit breakers (10A–250A, 12V/24V/48V) for marine, RV, truck, and industrial use. Hi-amp, resettable, ignition protected. OEM/ODM customization, small batches welcome.

Why Choose Our Circuit Breakers?

  • Β Global Compliance β€” Meets CE, SAE J1171 ignition protected, and UL standards
  • Durable Materials β€” Built with UL 94V0 thermoplastic housings and copper alloy terminals
  • OEM Customization β€” Support for circuit breaker logo engraving, labeling, and packaging
  • Flexible Orders β€” Accept small-batch prototyping as well as bulk export orders
  • Wide Selection β€” Available in resettable, thermal, and hi-amp circuit breakers trusted by global B2B buyers

Explore Our full circuit breaker product range:

circuit breaker
E91
thermal circuit breaker
E94
resettable circuit breaker
E96
hi-amp circuit breaker
E99
resettable circuit breaker
E98
waterproof circuit breaker
KT-E96-2

Hi-Amp Circuit Breakers (E9 Series)

  • Wide Current Range (25–300A): Perfect for high-amp applications in trucks, buses, RVs, marine systems, battery chargers, and DC audio.

  • Rugged & Durable: Flame-retardant UL94V0 housing + copper alloy studs ensure long service life in harsh environments.

  • Waterproof & Ignition Protected: IP67 + SAE J1171 compliance, safe for use in bilge compartments and engine rooms.

  • Flexible Mounting: Available in surface mount & panel mount, easy integration into different electrical panels.

  • Customizable: OEM/ODM support with logo, labeling, and packaging customization.

  • Reliable Performance: High interrupt capacity (3000A) + visual trip indicator for quick troubleshooting.

Branch Disconnect Circuit Breaker

  • Dual Function in One β€” Combines a traditional battery disconnect switch with circuit protection, saving OEM cost and installation space

  • Wide Current Range β€” Rated 10–70A, 32V DC, suitable for automotive, marine, and RV applications

  • High Safety Standards β€” Complies with SAE J553 and SAE J1171 (ignition protected) for safe use in engine compartments and marine systems

  • Durable Construction β€” Made with UL 94V0 flame-retardant thermoplastic housing and tin-plated copper alloy terminals for long service life

  • Strong Electrical Performance β€” Interrupt rating of 1.5–3kA @14V DC, endurance tested to meet UL1107 requirements

  • Resettable Design β€” Equipped with a PUSH TO RESET button for quick and easy circuit restoration

  • Easy Installation β€” Standard panel mount with 1/4″-28 stud terminals for universal compatibility

  • Versatile Applications β€” Ideal for trucks, RVs, boats, solar energy systems, and automotive electrical systems

Mid-Range Circuit Breaker

  • Wide Current Range / β€” 10–70A, 32V DC, ideal for trucks, buses, RVs & marine power

  • Ignition Protected & Waterproof Β β€” SAE J1171 compliance + IP66 rating

  • Durable Construction /Β β€” UL 94V0 thermoplastic housing with elastomer overmold

  • High Interrupt Rating Β β€” 2.5kA fault protection per ABYC E-11 standard

  • Resettable Design β€” Manual reset with trip indication, push-to-trip option (Series 55)

  • Flexible Installation β€” Panel mount with #8-32 threaded inserts or #10 clearance holes

  • Certified Safety Β β€” SAE J1625, ABYC E-11, CE, SAE J1171

Applications of Our Circuit Breakers

circuit protection

πŸ›₯ Marine Circuit Breakers

Provide reliable protection for winches, bilge pumps, navigation electronics, trolling motors, and windlasses. Built with IP67 and SAE J1171 ignition protection, ideal for harsh marine environments and engine compartments.

🚐 RV Circuit Breakers

Ensure safe and stable operation of refrigerators, LED lighting, heating systems, 12V/24V appliances, and solar charging systems. Resettable design makes them ideal for frequent use in mobile power applications.

SAE J1171 ignition protected breaker supplier

🚚 Automotive & Truck Circuit Breakers

Widely used in auxiliary power systems, HVAC units, electric winches, trailer connections, and distribution panels. High interrupt ratings up to 3kA protect vehicles against electrical faults and downtime.

Quality Assurance & Reliability Testing

πŸ”Ή Electrical Performance Tests

  • 100% Carry / Max. Voltage Drop
  • Overload Trip Rating – 135%
  • Overload Trip Rating – 200%
  • Effective Current Limitation (T1)
  • Voltage Breakdown Test (T1 & T2 only)
  • Interrupt Capacity

πŸ”Ή Endurance & Cycling Tests

  • Endurance Test @ 400% Rated Current
  • T1: 30 min.
  • T2: Battery 30 cycles
  • T3: 100 Γ— On-Off
  • T1 Extended Test: 4 hours
  • Transient Current Cycling
  • No Current Trip / Reset Temperature

πŸ”ΉEnvironmental Tests

  • Environmental Extremes Test

  • Temperature Test:-40C to +105C, 4cycled, 96hΒ 

  • Humidity Test: ’10 DAYS, 38C, 95% RH,

  • Salt Fog Test : Salt mist 5%, 35C, 48 h,

Why It Matters

Proven Safety & Durability β€” Each breaker passes electrical, endurance, and environmental validation.


Real-World Reliability β€” Testing simulates overloads, short-circuits, and harsh conditions in marine, RV, automotive, and energy systems.


Certified Compliance β€” Fully meets CE, SAE J1171 ignition protected, SAE J1625, and ABYC E-11 standards for global applications.

FAQ

What’s the difference between a fuse and a circuit breaker?


πŸ‘‰ Fuses must be replaced once blown, while resettable circuit breakers can be reused, saving cost and maintenance time.

πŸ‘‰ Yes, we offer IP67 waterproof and SAE J1171 ignition protected circuit breakers, suitable for marine and engine compartments.

πŸ‘‰ Yes, we supply both surface mount and panel mount designs for flexible installation.

πŸ‘‰ Our breakers cover a wide range from 10A up to 300A, with 12V, 24V, and 48V DC ratings to match different applications.


πŸ‘‰ All products comply with CE, SAE J1625, ABYC E-11, and SAE J1171 (ignition protected) standards


πŸ‘‰ They are widely used in marine vessels, RVs, trucks, buses, solar energy storage, and high-power DC audio systems.

πŸ‘‰ Yes, we support low MOQ orders and provide OEM/ODM customization including logos, labeling, and packaging.


πŸ‘‰ Standard models are usually available within 15 days, while OEM/ODM customization may take 20–30 days depending on quantity.


πŸ‘‰ Yes, every model is supplied with technical datasheets, wiring diagrams, and installation guides, helping engineers and buyers integrate them easily.


πŸ‘‰ Each breaker undergoes 100% testing, including endurance, overload, and environmental resistance tests, to guarantee consistent performance.

Looking For The Right Breaker For Your Industry?

Contact us for OEM/ODM solutions.

Β With wide current ranges (10A–300A), thermal resettable designs, and OEM/ODM customization, our circuit breakers are engineered to meet the needs of marine, automotive, RV, solar, and specialty vehicle manufacturers worldwide.