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Blue Sea Systems

Battery main switch BWD 504

Art.-Nr.: 700123002

133,88 €
133,88 €
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The BWD 504 battery selector switch from the Blue Sea Systems HD series selects between two isolated battery banks and additionally allows them to be connected in parallel (Combine) to all loads. With 500 A continuous current, it is designed for large engines and high-performance onboard electrical systems in which two battery banks are to be used flexibly.

Advantages

  • 4 switch positions for selecting or combining two isolated battery banks
  • High continuous current of 500 A for high-performance onboard electrical systems and large engines
  • Tin-plated copper studs for maximum conductivity and corrosion protection
  • Studs for 1/2" (M12) ring cable lugs for connecting large cable cross-sections
  • Housing design allows both surface and rear panel mounting

Technical data & compatibility

  • Switching function: Selector 4 Position – selects between two isolated battery banks or combines them to all loads
  • Continuous current: 500 A
  • Peak current: 1,600 A / 30 sec. (intermittent 5 min.: 700 A)
  • Voltage: max. 32 V DC
  • Mounting type: surface or rear panel mounting
  • Connections: studs for 1/2" (M12) ring cable lugs, cables up to 4/0 AWG (120 mm²)

Which onboard electrical system is the BWD 504 suitable for?

The BWD 504 is the right choice for high-performance onboard electrical systems with two battery banks and high current demand, for example with large diesel engines where one bank is used as selected in normal operation and both banks are to be connected in parallel when required – for example for an emergency start.

This makes it suitable for larger yachts as well as high-performance off-road and expedition vehicles with two independent battery banks.

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 BWD 504
Battery main switch BWD 504
133,88 €
133,88 €


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 from a single source

We develop and manufacture philippi-brand products ourselves in Remseck am Neckar. Partner products, for example from Blue Sea Systems, Mastervolt or Studer, we source as an authorised distributor directly from the manufacturer. So you get both from a single source – with advice from people who build on-board systems themselves.

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. We repair philippi-brand devices in our factory in Remseck for as long as spare parts are available – well beyond the statutory warranty. For partner products, the respective manufacturer's warranty applies; just contact us if you have a warranty claim.

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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