Inlets & Receptacles
    Hubbell M5100R9 watertight receptacle in gray
    Hubbell

    Hubbell M5100R9 100A 3 Phase Y 120/208 VAC Watertight Receptacle - Gray

    SKU HUB-M5100R9

    Our Price$742.86MSRP $873.95
    BackorderLead time: 42 days

    Hubbell M5100R9 watertight receptacle, 100 A, 3 Phase Y 120/208 VAC.

    Amperage
    100 A
    Voltage
    3 Phase Y 120/208 VAC
    Ingress protection
    IP67
    Poles
    4-Pole
    Color
    Gray
    Phase
    Three Phase
    Style
    Standard Service
    Wires
    5-Wire

    Lead time: 42 business days. 30-day returns on unused stocked items. Exclusions apply. Return policy · Shipping policy

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    About this product

    Hubbell M5100R9 watertight receptacle, 100 A, 3 Phase Y 120/208 VAC

    The Hubbell M5100R9 is a watertight receptacle. Its published electrical configuration is 100 A, 3 Phase Y 120/208 VAC, 4-Pole, 5-Wire.

    Key features

    • Amperage: 100 A
    • Voltage: 3 Phase Y 120/208 VAC
    • Poles: 4-Pole
    • Wiring: 5-Wire
    • Conductor range: #3 AWG to #1/0 AWG
    • Connectivity: Pressure Terminal Screws

    Application & installation notes

    It uses pressure-terminal screw connections for #3 AWG to #1/0 AWG conductors. Construction/material: Thermoplastic. Hubbell lists IP67 ingress suitability.

    Hubbell PD1160 specifies copper conductors and 75 in-lb (8.5 N·m) terminal-screw torque for the covered marine inlet/receptacle family. Use the exact product’s published conductor range, do not tin conductors, and install the device de-energized.

    Product details

    Amperage
    100 A
    Voltage
    3 Phase Y 120/208 VAC
    Ingress protection
    IP67
    Poles
    4-Pole
    Color
    Gray
    Phase
    Three Phase
    Style
    Standard Service
    Wires
    5-Wire
    Series
    Corrosion Resistant
    Function
    Watertight Receptacle
    Ip Class
    IP67
    Material
    Thermoplastic
    Mounting
    Screw Mounting
    Wire Size
    #3 AWG to #1/0 AWG
    Nema Rating
    Non-NEMA
    Connectivity
    Pressure Terminal Screws

    Shipping & returns

    • Lead time: 42 business days.
    • 30-day returns on unused stocked items. Exclusions apply. See policy
    • Custom and quoted items are non-returnable once production begins.

    Warranty

    Backed by the original manufacturer’s warranty plus our workmanship guarantee on assembled harnesses. Contact us with your invoice and we’ll coordinate any covered repair or replacement.

    Read the full warranty terms

    Technical support

    Need help choosing the right part?

    Our marine electrical team can review your setup and recommend compatible products. Send a photo, a sketch, or your circuit list and we'll come back with a parts list that fits the boat.

    Certifications & training

    • ABYC-aware build practices
    • OEM-grade marine wire & terminals

    Additional capabilities are based on hands-on experience building marine wiring systems rather than third-party certification.

    Share your project

    Have you used this product in a project? Send us photos of your install for consideration in our project gallery.

    Why buy from Common Ground Marine

    • 20+ years building marine wiring harnesses, panels, and shore-power systems.
    • Engineers — not a phone tree — review every custom build before parts are cut.
    • OEM-grade components: tinned copper, sealed connectors, marine-rated jackets.