Products Desc.
250A High Current Master Battery Disconnect Switch - SPST Kill Cut-Off Switch with Brass Contacts for Battery Replacement
This high current battery switch effectively prevents battery drain during the storage and repair of cars and trucks. It helps to reduce the risk of auto theft. Ideal for use in trucks, cars, RVs, trailers, boats, marine applications, or any vehicle that requires a battery cut-off switch.

About This Item
HIGH CURRENT BATTERY SWITCH:
Designed for continuous duty ratings of 200 to 300 Amps and intermittent duty up to 1000 Amps, this switch is suitable for 12-48 VDC systems, allowing you to isolate and secure the electrical system effectively.
DURABLE METAL BODY:
Constructed with a heavy-duty metal casing, this switch offers excellent weather resistance, safeguarding its internal components even in the harshest environments, making it a robust and long-lasting shut-off solution.

SAFETY PROTECTION:
Our battery disconnect switch effectively cuts power to the electrical system, helping to prevent battery drain. It ensures safety and efficiency by allowing you to safely disconnect the battery when your car, boat, or RV is not in use.
EASY OPERATION:
This battery isolator switch features a faceplate for straightforward installation, comes with an on/off indicator, and provides a definitive click sound when switching on and off.
Product Parameter
| Product name: | Heavy Duty Master Battery Cut Off Power Isolator Disconnect Switch | Operation: | 2P SPST ON-OFF |
|
Rated Voltage: |
12V | Rated Current: | 200Amps DC |
| Max. Current: | 300A | Cranking Rating 30 Sec: | 1250A |
| Dielectric Strength: | 1500VAC/1min | Electrical Life: | 10000 Times |
| Material: | Plastic+Copper | Net Weight: | 500g |
Products Dimension

Wiring Diagram

On-off switch
48V 300A Battery Isolator Disconnect Cut-Off Switch for Auto, Car, Truck, Boat, and Camper Pickup
HIGH CURRENT BATTERY SWITCH: This switch is rated for continuous duty at 200 to 300 Amps and can handle up to 1000 Amps for intermittent use. It is compatible with 12-48 VDC systems, allowing you to effectively isolate and secure your electrical system.
DURABLE METAL BODY: Featuring a heavy-duty metal casing with excellent weather resistance, this switch protects its internal components, making it suitable for the harshest conditions. It is a robust and long-lasting shut-off solution.
SAFETY PROTECTION: Our battery disconnect switch cuts off power to the electrical system, helping to prevent battery drain. It ensures safety and efficiency by allowing you to safely disconnect the battery when your car, boat, or RV is not in use.
EASY OPERATION: Designed with a faceplate for simple installation, this battery isolator switch includes an on/off indicator and provides a definitive click sound when switched on and off.
WIDE APPLICATION: The Huazu master battery disconnect switch is ideal for a variety of applications, including ATVs, trailers, off-road vehicles, RVs, trucks, heavy vehicles, and other electrical equipment.



Appilcation
The RV Battery Disconnect Switch, with its specific features and capabilities, finds several important applications in the context of recreational vehicles (RVs) and marine environments. Here are some common applications:
1. Battery Isolation: One of the primary uses of this switch is to isolate the RV or marine batteries. When the switch is in the OFF position (red label), it disconnects the battery from the electrical systems, preventing any power drain when the vehicle or vessel is not in use for an extended period. This helps ensure that the battery remains charged and ready for use.
2. Safety and Emergency Shut-Off: The switch serves as a safety measure and an emergency shut-off. In case of an electrical problem or emergency, quickly turning the switch to the OFF position can cut power to all connected systems, reducing the risk of electrical fires or hazards.
3. Power Management: RVs and marine vessels often have multiple electrical systems and devices, including lighting, appliances, navigation equipment, and more. The switch allows users to selectively power these systems by switching the switch to the ON position (green label) when needed and turning it OFF when not in use. This helps manage power consumption efficiently.
4. Battery Bank Management: In applications with multiple battery banks, such as separate starting and house batteries on boats or RVs, the switch can be used to manage and switch between these banks. This ensures that each battery bank is used for its intended purpose, optimizing power distribution.
5. Preventing Electric Leakage: By locking multiple switches together, users can effectively prevent electric leakage. This is important to ensure that power is not inadvertently drawn from the batteries when the vehicle or vessel is not in use.

Installation Case
Note: The rated current of the switch is 275A, please do not exceed this value for a long time! Otherwise the switch will burn out. Please use the switch strictly according to the wiring diagram! Incorrect wiring will not have the effect of disconnecting the power.

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welcome to our factory
Founded in 2011, Dongguan Senreach Electronics Co., Ltd. is a professional circuit protection component manufacturer and solution supplier in China. We have 20 years of experience in manufacturing fuses, fuse holders, circuit breakers, thermal protectors, ntc sensors, etc.
We have a variety of advanced manufacturing and testing equipment. With the adoption of excellent quality management system, we make sure that each of our components are safe and stable. Senreach has passed ISO9001:2000 quality management system certification, and its products meet international standards including UL, UR, CSA, BSI, CUL, VDE, TUV, PSE, CE, CCC, ROHS certification etc.
We specialize in developing, manufacturing and selling over current, over temperature and over voltage circuit protection components of various properties, types and specifications. Products are widely used in consumer electronics, automobiles, ships, communication devices, power supplies, new energy, photovoltaic and other fields.

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Why Choose Us

Price Advantage
We have a complete suuply chain from raw materials to final packing which enables us to control the production cost at every step.

Guaranteed Quality
Every piece of product pass full inspection by both auto test equipment and our QA team.

Stock Wholesale
We have open stock for some universal standard products. Delivery time is just about 1 week.

One-Stop service
We have R&D, QA, sales and after-sales team to offer you a full service including selection recommendation, technical support, after-sales protection.

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