Ancor Marine Grade Electrical Wire Seal - Flat Cable, 14/3 to 12/3 AWG, 3/4" NPT

The Ancor Marine Grade Electrical Wire Seal for flat cable (14/3 to 12/3 AWG, 3/4" NPT) provides a low-cost, watertight cable entry solution for marine electrical panels and junction boxes. UL and CSA approved for round cable applications, this liquid-tight wire seal is engineered to withstand the corrosive marine environment—resisting saltwater, gasoline, alcohol, ketones, and mineral oil. It's rated safe for underwater use to 300 feet at 150 PSI, making it suitable for both recreational and commercial boating applications where electrical integrity is non-negotiable.

The 3/4" NPT threaded connection accommodates flat cable in the 14/3 to 12/3 AWG range with a minimum/maximum clearance of 0.34 to 0.60 inches and a 1.05-inch clearance hole. These specifications ensure reliable sealing without over-compression of the cable jacket, which can degrade insulation over time. The marine-grade materials provide superior resistance to salt spray and UV exposure compared to standard electrical seals, extending service life in harsh saltwater environments where corrosion typically accelerates component failure.

Weekend fishermen upgrading helm wiring, offshore anglers running complex navigation and sonar systems, and commercial fishing operators benefit from this seal's proven reliability. It's equally suited for cabin cruisers, center consoles, sport-fishing vessels, and auxiliary power systems where water ingress at electrical penetrations can trigger cascading failures. The liquid-tight design prevents moisture from compromising panels during washdowns, wave action, and prolonged rain exposure—critical for vessels operating in unpredictable marine conditions.