Sierra's 50-amp plug handles both 125 and 250 volts, making it compatible with most marina pedestals and onboard electrical systems. Built with reinforced yellow nylon and brass components for corrosion resistance in saltwater environments. NEMA SS2-50P configuration with 3-pole, 4-wire design ensures safe, reliable connections. ETL listed and meets UL and CSA safety standards—the connector you can trust dockside.