Hubbell HBL61CM52W 50A 250V 50ft White Marine Shore Power Cord

The Hubbell HBL61CM52W (Hubbell part HBL61CM52W) is the 50-amp 250-volt 50-foot white shore power cord in the Hubbell Wiring Device-Kellems marine product line. The cord that connects a dock pedestal to a boat's shore power inlet for 50-amp 250-volt single-phase service. Factory-assembled with molded-on Hubbell devices at both ends, #6 AWG STOW heavy-duty cable in a flexible white vinyl jacket, the metallic threaded sealing ring on the boatside connector that creates an IP56 watertight seal at the inlet, and the 50-foot length that covers the typical dock-to-inlet distance for slips and side-tie moorings.

What 50A 250V means. 50-amp 250-volt single-phase shore power is one of the larger recreational marine shore power configurations. The 250V single-phase variant uses two hot conductors at 250V between them (no 125V neutral leg), with separate ground. Total continuous power: 50 A x 250 V = 12,500 watts. The 250V single-phase is less common in U.S. recreational marine than the 50A 125/250V split-phase configuration (which provides both 125V and 250V from the same connection), but it's the right configuration for European-spec boats, certain commercial vessels, and any boat where the onboard equipment all runs on 250V without needing 125V.

50-foot length. 50 feet is the typical shore power cord length for marina slips where the dock pedestal sits at the head of the slip and the boat's inlet is at the stern or transom area. Sufficient distance for typical 25-50 foot boats in standard finger pier slips. For longer reach (boats with the inlet in unusual locations, larger boats, or marinas with offset pedestals), Hubbell offers the same cord in 75-foot variant. For shorter reach (small boats with the inlet near the pedestal), the 25-foot variant.

#6 AWG STOW conductor. The cable internal conductors are #6 AWG (American Wire Gauge), the right gauge for 50-amp continuous service over a 50-foot run with acceptable voltage drop. The cable jacket is STOW: Service grade, Thermoplastic insulation, Oil-resistant, Water-resistant. STOW is the standard rating for marine and outdoor power cords - the jacket survives oil exposure (typical at marina pedestals near other boat equipment), water exposure (rain, splash, immersion at the dock edge), abrasion from coiling and uncoiling, and stays flexible at low temperatures (down to about -25 F) where lesser cables would stiffen and crack.

White vinyl jacket. The jacket color is white to match typical marine cord standards. White stays cool in direct sun (vs. black which absorbs solar heat and can soften the jacket over time), is easy to see on the dock or coiled on deck, and matches the typical white-themed exterior of most recreational boats. The vinyl material specifically chosen for marine grade resists UV degradation, salt-water corrosion, and dock-edge abrasion better than the cheaper jacket compounds in non-marine cords.

Threaded sealing ring at the boatside connector. The connector end (the end that plugs into the boat's shore power inlet) has a metallic threaded sealing ring. After plugging the connector into the inlet, you rotate the threaded ring clockwise onto the inlet's matching threaded collar. The ring tightens against an O-ring seal at the inlet face, creating an IP56 watertight seal that prevents water entry into the connection even under direct hose spray or rough-water splash. The threaded ring is the difference between a connection that stays dry under all marina conditions and one that lets in water at the first heavy rain.

IP56 boatside rating. IP56 is the protection rating for the boat-side connection (when properly seated and the threaded ring is tightened). The 5 means dust-protected (some dust may enter but not enough to interfere with operation). The 6 means powerful water jets from any direction won't enter in harmful quantities. Combined, IP56 is the right rating for the marine inlet connection that lives outdoors at the boat's hull side, exposed to spray, rain, and the occasional direct hose washdown.

Factory pre-wired with molded-on devices. Both connector ends are pre-wired and molded onto the cable at the Hubbell factory, not field-terminated. Pre-molding gives a seamless cable-to-connector transition with no internal connections that could fail over time, no exposed splice points to corrode, and a fully sealed body. The molded transition also has the right strain relief to prevent cable flexing from working the wires loose at the connector internally over many years of use. Factory pre-molding is the standard for premium marine shore power cords.

Made in the United States. The Hubbell Wiring Device-Kellems marine product line is manufactured in the USA. UL listed, CSA approved (Canadian), and CE certified (European) for global compliance. The made-in-USA aspect matters for marine quality control - U.S. manufacturing maintains the dimensional tolerances and material quality that the marine application demands.

Plug compatibility. The pedestal end (the end that plugs into the marina pedestal) uses Hubbell's standard 50-amp 250-volt single-phase Twist-Lock pin pattern. The boatside end uses Hubbell's standard 50-amp 250-volt boatside connector with the threaded sealing ring. Compatible with marina pedestals fitted with Hubbell HBL61 series 50A 250V receptacles, and with boats fitted with Hubbell HBL61 series 50A 250V inlets. For 125/250V split-phase service (the more common U.S. recreational marine configuration), see the Hubbell 125/250V cord variants - those have a different pin pattern that doesn't interchange with this 250V single-phase variant.

Coiling and storage. When coiling for storage, use the figure-eight coiling technique rather than tight wraps - figure-eight prevents kink stress on the cable internal conductors. Store coiled in a dry locker (not in standing water in the bilge) to maximize jacket service life. With proper care, marine shore power cords typically last 8-12 years before the jacket starts showing wear that suggests replacement.

Specs at a glance. 50 amps current capacity. 250 volts single-phase. 50 feet length. #6 AWG STOW conductor. White vinyl jacket. Metallic threaded sealing ring on boatside connector. IP56 boatside rating. Factory pre-wired with molded-on Hubbell devices. UL Listed, CSA approved, CE certified. Made in USA.

What's in the box. The 50-foot shore power cord, factory-assembled with both connectors molded on. Spare parts (threaded sealing ring O-ring, etc.) are sold separately if ever needed.

Hubbell limited warranty applies. Same-day shipping before 3 PM ET on in-stock units. Note: 50-foot oversize cord may incur freight surcharges from carriers on certain routes.