Blue Sea 9011 Switch, AV 120VAC 65A OFF +2 Positions

The Blue Sea 9011 Switch is a heavy-duty 120VAC 65A AC source selector engineered for marine electrical systems where dual power sources require intelligent switching. This compact industrial-rated switch allows connection of one of two different AC sources to a single circuit, making it essential for vessels with generator and shore power configurations or backup AC systems. The 9011 operates at 2 poles with OFF plus 2 positions, providing fail-safe isolation when no source is selected.

With a rated capacity of 65 amps at 120VAC, the switch handles substantial AC loads commonly found on larger cruising vessels and offshore fishing boats. The two-pole design enables simultaneous switching of both conductors in a 120VAC circuit or independent control of 120V and 230V sources when used in dual-voltage applications. Panel mounting accommodates installations in marine grade enclosures up to 0.16 inches thick. Blue Sea Systems designed this switch as a standalone selector where circuit protection is provided by upstream breakers or fuses, streamlining panel layout and reducing redundant protection components.

This switch addresses a critical marine electrical need: safe, intuitive selection between multiple AC power sources without risk of backfeeding or simultaneous connection. Cruising boaters managing both generator and shore power, offshore anglers running AC compressors and welding equipment, and naval applications requiring reliable dual-source switching depend on this type of component. The industrial rating and compact form factor make it suitable for both new construction and retrofit installations on working vessels where panel space is at a premium.

Blue Sea Systems is recognized throughout the marine industry for electrical infrastructure products built to withstand saltwater corrosion and vibration encountered in real-world boating. The 9011 reflects this positioning as a foundational component in systems designed by naval architects and marine electricians for safety-critical applications.