RPA

<p><strong>Marine Reverse Polarity Safety Alarm</strong></p><p>For boaters who often connect to shore power at unfamiliar docks, a reverse polarity alarm is essential. This device alerts users to incorrect wiring, which can vary significantly at different marinas and between plugs. Many boats feature a polarity indicator, typically a light on the AC electrical panel or an audible alarm, yet its importance is often overlooked by owners.</p><p>Standard for any boat equipped to connect to a 120-volt AC shore power outlet, this alarm helps ensure the safety of anyone relying on marina power. It operates by illuminating or sounding an alert when hot and neutral wires are swapped, informing boaters of potentially hazardous wiring conditions.</p>