M4100B12R - Hubbell 100A 125/250V Inlet | Aztek Computers
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SKU: UG5IUVHPOZ |  Mfg. Part: M4100B12R  | UPC: 783585410012  |  0 Reviews  |     Share Make an offer

M4100B12R - Hubbell 100A 125/250V Inlet

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Product Overview

Hubbell Marine was the first to offer 100 amp marine grade devices that are considered second to none.

Hubbell developed the standard for 100 amp Pin and Sleeve devices with the National Electric Code and the American Boat and Yacht Council.

Only Hubbell offers 3, 4 and 5 wire 100 amp cable sets for your shore power requirements.

Cable sets manufactured in factory controlled conditions using specially compounded cable to accommodate a full 100 amp.

100 Amp pin and Rugged, watertight, sleeve devices. UL listed, AB02029 YC compliant, corrosion resistant.

100 Ampere, 125/250 Volt 3 Pole 4 Wire Ship-to-Shore Devices

M4100B12R
Gray nylon shore power inlet has gasketed, spring-loaded cover which closes automatically when not in use and is watertight when securely fastened. Mounting holes are 4.88 in. (123.8) on centers and rear portion has 3.94 in. (100.0) diameter. Mounting screws and gasket included.

M4100C12R
Yellow Zytel® super tough nylon watertight connector body has gasketed locking ring to make inlet/connector interface watertight. Note: This device mates with shore power inlet only.

M4100P12
Yellow Zytel® super tough nylon watertight plug has gasketed locking ring to make plug/receptacle interface watertight.

M4100R12
Gray nylon dockside receptacle has gasketed, spring-loaded cover. Closes automatically when not in use and is watertight when securely fastened. Mounting holes are 4.88 in. (123.8) on centers. Mounting screws and gasket included.

M4100C12
Yellow Zytel® super tough nylon watertight connector body for mating plug to connector interface on extension cords or adapters. Note: It cannot be mated to the shore power inlet.

100 Ampere, 3 Y 120/208 Volt and 3 Y 277/480 Volt 4 Pole 5 Wire Ship-to-Shore Devices

M5100B9R
Gray nylon shore power inlet has gasketed, spring-loaded cover which closes automatically when not in use and is watertight when securely fastened. Mounting holes are 4.88 in. (123.8) on centers and rear portion has 3.94 in. (100.0) diameter. Mounting screws and gasket included.

M5100C9R
Yellow Zytel® super tough nylon watertight connector body has gasketed locking ring to make inlet/connector interface watertight. Note: This device mates with shore power inlet only.

BB1001W
15° angle cast aluminum back box has corrosion resistant gray finish and top hub with 1 in. N.P.T. 100A receptacles can be mounted directly to it.

BB100N
15° angle non-metallic back box, made of high-grade engineered thermoplastic Valox® to resist chemicals, abuse and U.V. rays. Has integral grounding plate, 1 in. N.P.T. hub size and 120 cu. in. capacity (hub is not included - Raco part number 1706 is recommended).

M5100P9
Yellow Zytel® super tough nylon watertight plug has gasketed locking ring to make plug/receptacle interface watertight.

M5100R9
Gray nylon dockside receptacle has gasketed, spring-loaded cover. Closes automatically when not in use and is watertight when securely fastened. Mounting holes are 4.88 in. (123.8) on centers. Mounting screws and gasket included.

M5100C9
Yellow Zytel® super tough nylon watertight connector body for making plug to connector interface on extension cords or adapters. Note: It cannot be mated to the shore power inlet.













Expert Overview

The Hubbell M4100B12R is a 100 Ampere, 125/250 Volt, 3-pole, 4-wire shore power inlet designed for marine applications. This device is suitable for IT and facilities managers responsible for maintaining power infrastructure on vessels requiring high-current shore power connections. It addresses the need for a robust and watertight power interface, ensuring reliable electrical supply from shore to ship. The inlet features a gray nylon construction with a gasketed, spring-loaded cover that automatically closes when not in use, providing watertight integrity. It is UL listed, AB02029 YC compliant, and corrosion resistant, meeting established standards for marine-grade devices. Mounting holes are spaced 4.88 inches on centers, with a rear portion diameter of 3.94 inches. Mounting screws and a gasket are included for installation. This inlet is designed to mate specifically with compatible shore power connectors.

Product Details

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  • Hubbell
  • M4100B12R
  • B007IA41VO
  • 783585410012
  • New
  • 5 lbs
  • 5 X 5 X 5
  • Jul 27, 2026
  • Nov 24, 2025
Product Identifiers: Brand: Hubbell • Part #: M4100B12R • UPC: 783585410012 • ASIN: B007IA41VO

Frequently Asked Questions

What are the electrical specifications of this inlet?

The Hubbell M4100B12R is rated for 100 Ampere, 125/250 Volt, and features a 3 Pole 4 Wire configuration for ship-to-shore power connections.

What are the physical dimensions for mounting this inlet?

The inlet has mounting holes spaced 4.88 inches (123.8 mm) on centers. The rear portion of the inlet has a diameter of 3.94 inches (100.0 mm).

What is included with the Hubbell M4100B12R?

The M4100B12R shore power inlet comes with mounting screws and a gasket for installation.

What type of connector is compatible with this inlet?

This device is designed to mate with a compatible shore power connector body, such as the M4100C12R, which has a gasketed locking ring to ensure a watertight interface.

M4100B12R - Hubbell 100A 125/250V Inlet

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