Blue Sea 3119 SMS Surface Mount System Panel Enclosure - 120/240V AC / 50A ELCI Main - 1 Blank Circuit Position

The Blue Sea 3119 SMS Surface Mount System Panel Enclosure is the marine electrician's answer to reliable, code-compliant shore power distribution on vessels equipped with 120/240V AC systems. After years running boats on the water, any serious skipper knows that proper electrical infrastructure separates a safe, trouble-free vessel from a floating liability. This enclosure is purpose-built to house ELCI (Equipment Leakage Circuit Interrupter) main breakers and other large-frame devices, meeting ABYC E-11 standards when paired with an appropriate ELCI main breaker and mounted within the required distance from entry points.

The 3119 panel enclosure delivers a compact yet robust surface-mount design with a 50A ELCI main capacity and one blank circuit position for future expansion. Its steel construction and weatherproof design withstand the harsh marine environment—salt spray, humidity, and vibration—while the integrated mounting feet and accessible knockouts simplify installation in tight galley and engine room spaces. The single blank position allows flexibility in circuit configuration, letting you add dedicated circuits for AC loads (air conditioning, water heater, or shore power outlets) as your vessel's electrical needs evolve.

This panel is ideal for cruising sailboats, trawlers, and coastal powerboats that rely on consistent shorepower connectivity during extended stays. Whether you're retrofitting an aging electrical system or engineering a new build, the 3119 serves as the backbone of a modern, compliant AC distribution network. Installation requires positioning the enclosure within 10 feet of the vessel's shore power inlet—a critical detail for meeting ABYC standards and ensuring rapid fault isolation in the event of a short or equipment failure. Pair it with properly rated feeder cables and marine-grade breakers for complete peace of mind.