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Yellow industrial male plug with pin-and-sleeve contacts, 100A 120/208V 30Y rating

Hubbell Incorporated

Hubbell Incorporated 100A 120/208V 30Y Male Plug

SKU CH-WK4T-D7QV3

A 100 amp, 120/208 volt male plug built to UL and ABYC standards for marine shore power connections

  • 100 amp shore power rated for demanding marine electrical loads
  • 120/208 volt 30Y configuration matches standard three-phase dock supplies
  • Pin-and-sleeve design developed with NEC and ABYC for trusted compatibility
  • Watertight Zytel nylon housing resists corrosion in saltwater environments
  • UL listed and ABYC compliant for verified safety on board

100A 120/208V Male Plug

The Hubbell M5100P9 is a 100 ampere pin-and-sleeve male plug rated for 120/208 volts in a 30Y configuration. It is built for marine shore-power connections where a watertight, corrosion-resistant inlet is required. The device carries UL listing and AB02029 YC compliance for dockside installations.

30Y Pin Configuration

The single specification that determines fit is the 30Y pin arrangement combined with the 100 ampere, 120/208 volt rating. This layout matches only inlets and connector bodies wired to the same 3-pole, 4-wire standard. Using a different pole count or voltage rating will prevent a safe connection.

Installation Notes

The plug mates with a compatible shore-power inlet using a gasketed locking ring that creates a watertight seal when fully tightened. No mounting hardware is included with the plug itself. The most common issue is cross-threading the locking ring or failing to seat the gasket, which compromises the watertight integrity.

Highlights

  • 100 amp shore power rated for demanding marine electrical loads
  • 120/208 volt 30Y configuration matches standard three-phase dock supplies
  • Pin-and-sleeve design developed with NEC and ABYC for trusted compatibility
  • Watertight Zytel nylon housing resists corrosion in saltwater environments
  • UL listed and ABYC compliant for verified safety on board

Specifications

BrandBeckson Marine, Inc.

Questions about this item

What does the 100A rating mean when the plug is connected to a shore-power system?

It indicates the plug can carry a continuous 100 ampere load at 120/208V three-phase, suitable for high-demand marine electrical service.

How does the 30Y pin-and-sleeve interface limit the connections I can make?

The 30Y configuration provides three poles and four wires at 120/208V, so it only mates with matching 100A 30Y inlets and connector bodies.

What mounting-hole spacing and rear clearance does the matching inlet require?

The mating inlet uses mounting holes on 4.88 in. centers and needs a 3.94 in. diameter cut-out behind the panel.

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