How many poles does this Blue Sea 9077 AC Selector Switch have, and why does it matter? Blue Sea 9077 AC Selector Switch, 240V 63A OFF +3 AC Source Selector Switches

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How many poles does this Blue Sea 9077 AC Selector Switch have, and why does it matter? Blue Sea 9077 AC Selector Switch, 240V 63A OFF +3 AC Source Selector Switches

Status: Open Apr 29, 2026 - 11:19 AM

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Apr 29, 2026 - 11:19 AM

It is a 3-pole switch. In a standard North American 120/240V system, this allows the switch to simultaneously disconnect both "Hot" lines (L1 and L2) and the Neutral of one source before connecting to another. This ensures total isolation between power sources, which is a critical safety requirement.