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Blue Sea Systems

Battery Selector Switch BWS 303

Zuletzt aktualisiert:

Art.-Nr.: 700106008

€69,44
€69,44
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The BWS 303 battery selector switch from the Blue Sea Systems m-series selects between two starting batteries for motorboats. Unlike the BWS 304, it does not have a "combine" position – the battery banks remain strictly isolated from each other in every switch position.

Advantages

  • 3 switch positions: Battery 1, Battery 2, or OFF
  • Battery banks remain electrically isolated in all positions – no accidental paralleling
  • Tin-plated copper studs for maximum conductivity and corrosion protection
  • One-piece stud design that won't loosen under vibration
  • Insulating cover protects rear contacts, label set included

Technical Data & Compatibility

  • Switch function: Selector 3 Position – switches isolated battery banks to all consumers, without a combine function
  • Continuous current: 300 A
  • Peak current: 900 A / 30 sec. (Intermittent 5 min.: 500 A)
  • Voltage: max. 32 V DC
  • Mounting type: universal flush, surface, or panel mount
  • Connections: Studs for 3/8" (M10) ring terminals, cables up to 4/0 AWG (120 mm²)

What application is the BWS 303 suitable for?

The BWS 303 is suitable for on-board electrical systems where two starting batteries must remain strictly separate and no paralleling option is desired – for example, if different battery types or capacities are installed that should not be discharged together.

This makes it a simple, safe alternative to the BWS 304 for anyone who only wants to switch between two batteries but not combine them.

Kontaktdaten des Herstellers:

Navico Group EMEA B.V.
Snijdersbergweg 93
1105AN Amsterdam

⚠️Safety data sheet can be found under Downloads!
⭳ Downloads

Deutsche Downloads

Blue Sea Systems Batteriewahlschalter BWS 303
Battery Selector Switch BWS 303
€69,44
€69,44


Technology that convinces – Service you can rely on

Individual Consultation

Not sure which product suits your electrical system? We can help you – personally, competently and directly. Our team knows every component and will advise you so that everything works reliably from day one.

Tested Quality – Made in Germany

All philippi products are developed, manufactured, and tested by us in Remseck before delivery. What you buy from us meets the highest quality standards – and reliably performs even under demanding conditions on board.

After-sales support – we're still with you

Questions about installation, integration into the existing electrical system, or operation? We are here for you even after your purchase. Should something not work as expected, we will repair philippi devices as long as spare parts are available – so that your investment is protected in the long term.

Our FAQ

Here you will find our customers' most frequently asked questions!

Most philippi components are designed for compatibility with common marine and vehicle electrical systems. Before ordering, please check the technical specifications (dimensions, voltage, connection type) in the product description. If you are unsure, our support team will be happy to assist you.

Available items are usually shipped within 2–3 business days. You can see the current stock status directly on the product page. Shipping is free for purchases over €250.

You can return your order within the statutory right of withdrawal. Please use our return form or contact our support team – we can also help you find a suitable replacement product.

Yes. philippi products are manufactured and tested in our own factory in Remseck. In the event of a defect, we repair devices as long as spare parts are available – even far beyond the statutory warranty.

All available documents (dimensioned drawings, data sheets, safety instructions) can be found in the "Downloads" section directly on the respective product page.

Many components such as circuit breakers, terminals, or connectors are designed for self-assembly. For questions regarding proper installation or for more complex systems, we recommend contacting our consulting team in advance.

Contact our team by phone or email, or book a personal consultation. We know every component and will work with you to find the right solution for your project.

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