Marine & Yachting

Configurable DC power control and circuit data for private recreational vessels, including superyachts.

The challenge

Electrical problems at sea are hard to fix.

Boats combine complex electrical systems with salt, moisture and limited access for repairs.

Corrosion and moisture

Salt air and water can damage switches, fuses and connections over time.

Battery drain and complex wiring

Onboard loads and years of add-ons drain batteries and make faults hard to trace.

Poor visibility

Without circuit data, it can be hard to tell what is drawing power while the boat is unattended.

How Hardwire helps

Configurable DC power control for vessels.

Configurable protection

Per-circuit electronic protection, set to suit each cable and load.

Load shedding

Configured shedding of approved non-essential loads, with essential loads defined.

Circuit data

Current data for connected outputs, viewable locally; remote monitoring not included.

IP67 enclosure

The PDM28 is rated IP67 and −55 to 90 °C (manufacturer specification); connectors still need care.

Typical applications

Where it’s used on board.

Selected 12/24 V DC circuits on privately operated vessels, including private superyachts. Each circuit is checked for current, inrush and cable rating at installation.

See the PDM28 → · Compare the range →

Lighting circuits

Cabin, deck and navigation lighting, with essentials defined.

HVAC controls

Control and fan supplies for climate systems.

Rated DC pumps

Bilge, freshwater and washdown pumps within rating.

Monitoring

Current data from connected outputs, viewed locally.

Electronics & displays

Chartplotters, radios and helm displays.

Auxiliary power

Refrigeration, USB and accessory circuits.

White paper

Vessel DC electrical systems

Free white paper

Vessel DC electrical systems: battery reserve, protection and monitoring

What breakdown and fire information does and does not show, and measures for privately operated vessels.

Download the white paper

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An overnight fire at Tauranga Marina in March 2025 affected 15 vessels; the cause was believed, but not confirmed, to be an electrical fault on one vessel.

Boating NZ, Tauranga fires highlight ongoing risks for boaties, March 2026 · Read the article →

of US towing calls were attributed to dead batteries in a 2018 BoatUS article (data period not stated).

Source: BoatUS Magazine, 2018, via 2019 reprint