Newmar RA-2 Cable FEED-THRU 0.27-0.35 Inch Cable Diameter

The Newmar RA-2 Cable FEED-THRU is a purpose-built marine cable pass-through fitting designed for professional boaters and vessel builders who demand reliable deck penetration solutions. If you've spent time wiring a boat's electrical or data systems, you know that running cables through hull penetrations requires a component that seals properly, protects conductors, and stands up to saltwater corrosion. This feed-through assembly bridges that gap, allowing cables in the 0.27 to 0.35 inch diameter range to pass cleanly through bulkheads, decks, or cabin walls while maintaining watertight integrity.

Newmar engineered the RA-2 with a machined metal body and precision cable collar that grips conductors without crushing insulation or damaging jacket materials. The feed-through design minimizes stress on cable runs, reduces chafing at the penetration point, and maintains electrical shielding continuity—critical for instrument networks and high-frequency signals common on modern vessels. The compact 1-pound assembly installs quickly in tight spaces, making it ideal for retrofit installations where access is limited. Its marine-grade construction resists corrosion and salt spray degradation, ensuring years of reliable service in harsh saltwater environments.

Experienced captains and marine electricians choose the Newmar RA-2 for AC and DC power runs, data networking, and integrated systems on fishing boats, cruisers, and commercial vessels. The 0.27–0.35 inch cable diameter spec accommodates standard marine power cabling, control lines, and bundled network harnesses without requiring adapters or compromises. Installation is straightforward: secure the fitting to the penetration point, route cable through the collar, and tighten the compression nut for a watertight seal. Whether you're outfitting a new build or upgrading existing wiring infrastructure, this feed-through eliminates water ingress risk and simplifies future maintenance access.