DC 12V 24V 275A Patented Ignition Protected Waterproof Battery Selector Switch | Marine Toggle Switch Panels, Fuses, Circuit Breakers Manufacturer | YIS Marine

YIS Marine's Battery Selector Switch (1-2-both-off) is a reliable solution for efficiently managing multiple battery systems in boats, RVs, and other offline applications. This switch offers easy and straightforward control, allowing you to select between two batteries, combine them, or completely disconnect them to suit your specific power requirements.

The Battery Selector Switch is designed to operate seamlessly with either DC 12V or 24V systems. Whether you're using it on a boat, car, or caravan, the switch ensures reliable performance across different voltage systems. Additionally, it can handle a DC 48V Max voltage rating, making it versatile for various applications.

YIS Marine Battery Selector switch offers a 1-2-Both-Off selection, providing four distinct positions to manage your batteries. Whether you need to isolate a single battery, connect both for increased power, or turn off the power completely, this switch provides the flexibility you need. It features a Continuous Rating of 275A, ensuring it can handle substantial power loads without compromising performance.

YIS Marine battery selector switch is featuring an Alternator Field Disconnect (AFD) function, ensuring that your alternator is protected from damage when accidentally turning off the battery switch without cutting off power of the alternator. The AFD feature is an extra fool-proof feature helping prevent alternator rectifying diodes from burning down when the alternator output is suddenly cut off. The YIS Marine switch series is the smallest battery switch with AFD feature in the market.

YIS Marine's Battery Selector Switch features conductive tinned copper studs that can accept battery cables up to 4/0 AWG. The M8 studs length allows for multiple (up to 4) cable terminations, providing flexibility during installation. These studs also accept imperial 5/16" nuts and ring terminals, ensuring compatibility with both metric and imperial standards. High conductivity studs are designed to handle more than one cable and are strong enough for the torque needed for secure connections. This ensures that your battery connections are reliable and efficient.

Unique Ergonomic and Aesthetic Knob Design: YIS Battery switch's knob is designed for both functionality and aesthetics. Its ergonomic design ensures easy operation, while its modern look enhances the visual appeal of your installation. In standard package, 16 pcs assorted stickers are included with the battery switches, so you can easily label the battery switch that best suits it application. YIS marine battery switch also features a glass fiber-reinforced nylon enclosure, providing exceptional durability and resistance to harsh marine environments.

YIS Battery switch series offers both surface and panel mount options, providing flexibility during installation. Its dimensions are compatible with YIS marine Heavy Duty Modular Fuse Box Series (BF43x), allowing for seamless integration into existing setups. Removable windows facilitate unobstructed wiring, simplifying the installation and maintenance process. This compatibility also ensures our battery switches’ seamless integration and easy installation with BEP Style configurations.

This battery selector switch has an IP66 waterproof rating, ensuring it is completely dust-proof and can withstand powerful water jets from a 12.5 mm nozzle at a distance of 3 meters away. This means the device can operate reliably in harsh environments, such as marine or outdoor settings. Additionally, the switch complies with ISO8846 or SAE J1171 ignition protection standards. ISO8846 ensures that electrical devices do not ignite flammable gases or vapors in marine environments, making them safe to use in engine rooms and fuel tank spaces, which can significantly save on wiring costs (as thick cables are expensive).
The switch is patented in Taiwan (D183413) and China (ZL201730358133.0), highlighting its unique and innovative design. This patent highlights YIS Marine's Research and Design capability and the importance of buying the product that is both original and with guaranteed quality.
YIS Marine offers extensive customization options for this switch. You can choose from various packaging options, including boxes, hanging boxes, and blister packs. Custom printing options are also available, allowing you to display your logo on the product and packaging. In addition, you can customize the label stickers prints, knob's or housing colors or even the knob's shape to differentiate your product from competitors in the market or to ensure it matches your brand image or personal preferences perfectly.

In addition to the BF442 model, YIS Marine offers a series of related battery switch products to meet various needs ,a battery selector switch (1-2-both-off) with AFD (BF442A)、battery main switch (On-Off) (BF441) and battery main switch (On-Off) with AFD (BF441A). Check below for related products sections for more associated products and accessories.

We take small orders as little as 50pcs, and sample orders are also welcome. With a low MOQ order and fast delivery times, YIS Marine ensures that you can get the products you need quickly and without hassle. Contact YIS Marine today to learn more about this innovative product. YIS Marine is a high-quality marines and boats DC 12V 24V 275A Patented Ignition Protected Waterproof Battery Selector Switch, 12v 24v marine boat car battery 3 way selector 4 position dual batterie switch master 1 2 both off 1/2/both BF442 /BF442A (with AFD) manufacturer from Taiwan, China since 1992. YIS Marine is a professional manufacturer devoted to providing high quality marine electrical and electronics products. By designing and manufacturing in-house and having quality control at Taiwan headquarter, we are able to offer high quality marine products at competitive prices.