300 Amp Automotive Circuit Breaker

The 300-amp automotive circuit breaker is a current protection device designed for applications such as car audio, video systems, ships, sailing, and bicycles. It can effectively prevent damage to electrical equipment caused by current surges or short circuits by automatically disconnecting the circuit when the current is overloaded. Its appearance is similar to that of a traditional fuse, but it has the advantage of being reusable and does not require frequent replacement.

Product Details

Model: Car Audio Inline Circuit Breaker Fuse DC 30A / 40A / 50A / 60A / 70A / 80A / 100A / 120A / 150A / 200A / 250A / 300A available.

Application: Car audio video system, marine, sailing, bicycle use. Prevent surges from damaging your amplifier. Mount on panel or firewall.

Function: Avoid excessive current and protect electrical appliances. In self-test, the circuit breaker will automatically trigger when the current is overloaded.

International products have separate terms and are sold from foreign countries and may differ from local products, including suitability, age rating, and language of products, labels or instructions.

Description:

Easy to use and durable.

Function: Avoid overcurrent and protect electrical appliances.

Use when connecting audio power lines.

Use instead of inline fuse holder.

Suitable for overload protection of car audio/video systems.

Specifications

Ampere Range: 30A / 40A / 50A / 60A / 70A / 80A / 100A / 120A / 150A / 200A / 250A / 300A.

Material: Plastic and Metal.

Dimensions: Approx. 75 x 49 x 45 mm

Function

Current protection: The circuit breaker can cut off the circuit when an overload current is detected, thereby preventing the equipment from being damaged by excessive current.

Amplifier protection: Installed in car audio and video systems to prevent current surges from damaging the amplifier or other key components.

Circuit management: It also supports manual reset function, so users can quickly restore circuit operation without replacing components.

Features

Multiple rated currents: Provide a variety of options from 30A to 300A to meet the current requirements of different devices.

High sensitivity trigger: Quick response when the current is overloaded, automatically disconnect the circuit protection device.

Easy installation: Support panel or firewall installation, suitable for various complex circuit layouts.

Durable material: Made of high-strength materials, it can withstand harsh environmental conditions and extend service life.

In-line design: Save space while ensuring the simplicity and stability of circuit connection.

Advantages

Reusable: Unlike traditional fuses, the circuit breaker does not need to be replaced and can continue to be used by simple reset.

Cost-effectiveness: Reduces the cost of equipment replacement caused by overload damage and improves the overall reliability of the system.

Strong environmental adaptability: Suitable for harsh conditions such as high temperature, humidity and vibration in automobiles, ships and outdoor use.

Versatility: Widely used in many fields such as car audio, video systems, and marine electronic equipment.

Application areas

Car audio and video systems: Provide stable current protection to prevent the amplifier of audio equipment from being damaged by current shock.

Ship and marine electronic equipment: Protect electronic equipment in humid and high-salinity environments.

Bicycle lighting and electrical equipment: It can also provide efficient protection in small electrical equipment.

Industrial field: Used for small motor and circuit protection to ensure the safe operation of production equipment.

Maintenance and precautions

Regular inspection: Check the wiring port of the circuit breaker regularly to see if it is loose or corroded.

Keep clean: Make sure there is no dust or oil on the surface of the circuit breaker to avoid affecting the heat dissipation effect.

Waterproof protection: When installing in a humid environment, it is recommended to use a waterproof cover or sealing measures.

Avoid excessive frequent triggering: If the circuit breaker is triggered frequently, check whether the circuit is short-circuited or overloaded.

Correct selection: Choose a circuit breaker with a suitable rated current value according to the current demand of the equipment to avoid oversized or undersized models that affect the protection effect.

The 300-ampere automotive circuit breaker has become an indispensable component in vehicle-mounted and marine equipment with its excellent protection performance and diverse application scenarios. Its reusable and easy installation characteristics not only save maintenance costs for users, but also significantly improve the safety and reliability of electrical systems.