Electrical system planning
Electrical system planning at philippi means: we plan the complete 12, 24 or 48 V on-board electrical system of your boat or vehicle and size every component according to your requirements and wishes – from the consumer balance to battery capacity, charging sources and fusing through to the switch panel. You receive professional advice, a fully designed system and, on request, drawings. We plan brand-independently: we recommend what suits your project.
Who it is for
- Owners and converters who want to build a new on-board electrical system or convert an existing one – for example to lithium
- Shipyards and vehicle builders who want a series or one-off system designed in compliance with standards
- Refit projects in which an old system that has grown over time is to be assessed and restructured
What the planning includes
- Consumer balance: daily consumption of all consumers and, from this, the required battery capacity
- Energy generation: coordination of alternator, charge booster, solar, shore power and generator
- Distribution and fusing: cable cross-sections based on voltage drop, fuses matched to the cross-section, battery main switches and busbars
- Control and monitoring: switch panel, battery and tank monitoring, digitally via P-BUS and PCU on request
- 230 V side: shore power connection, residual current protection and source changeover according to ISO 13297
- Drawings: plans and drawings for installation on request
How it works
- Initial consultation: we clarify the boat or vehicle, usage profile, requirements and wishes.
- Survey: existing system, consumers and installation spaces.
- Design: we plan and size the complete on-board electrical system and agree it with you.
- Result: you receive the fully planned system, with drawings on request.
- Implementation: on request, we manufacture made-to-measure switch panels and distribution units and supply all components from a single source.
The starting point is a consultation. Its cost is credited when you place an order.
Planning and manufacturing from a single source
Because we manufacture switch panels, shore power units, chargers and the P-BUS system ourselves, the planning turns directly into a matching system – as a custom build, as a small series for shipyards or as a refit panel. Read more about our manufacturing on the Manufacturing page.
Frequently asked questions about electrical system planning
Is planning worthwhile for smaller boats or campers too?
Yes, especially there. In small systems, a few kilograms, centimetres and amperes decide on self-sufficiency and safety. Planning prevents typical mistakes such as cross-sections that are too small, incorrectly sized fuses or a battery that does not match the charging source – and therefore often saves more than it costs. For simple questions, the cable configurator also helps in advance.
Which standard is the planning based on?
On boats, we design the DC and AC sides according to ISO 13297, which has covered both sides in a single standard since 2020. Different regulations apply to vehicles, but the physical principles are the same: fusing according to cross-section, separate DC and AC sides, clean ground and limited voltage drop.
Do you only plan with philippi products?
No, we plan brand-independently. What matters is what suits your boat or vehicle, your usage profile and your budget. Many customers then have their switch panels and distribution manufactured by us, because planning and manufacturing then fit together exactly – but this is not a condition.
