MJ Sailing · video

What this video covers

Matt installs a custom electrical distribution system on a new catamaran using DIN rail-mounted Eaton breakers instead of a traditional marine panel.▶ 0:38 The setup features 30 breakers arranged in three rows, separated into 12-volt and 48-volt circuits to manage hotel loads and mission-critical electronics.▶ 2:23 By housing the breakers inside a cabinet with a solid door, the installation prevents accidental switching of critical systems like the autopilot.▶ 2:54 The Eaton breakers are UL 489 rated and offer global availability for easier replacement during international cruising.▶ 6:26 The design isolates navigation electronics on a dedicated circuit powered by a separate DC-to-DC converter and battery pack to protect against voltage spikes from other shipboard loads.▶ 3:53 While the current breakers handle up to 48 volts, Matt plans to source higher-voltage Eaton units for solar controller circuits that exceed this threshold.▶ 9:55 This modular approach allows for easier wiring from the front and simplifies future system modifications.▶ 5:09

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