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By Hubbell Wiring Device-Kellems 

Catalog ID: HBL504SS

By Hubbell Wiring Device-Kellems
Catalog ID:  HBL504SS
Locking Devices, Twist-Lock®, Marine Grade, Shore Power Inlet, 50A 125/250V, 3-Pole 4-Wire Grounding, Non-NEMA, Screw Terminal, Chrome Plated Brass
  • New quick connect with backwards compatibility
  • Self-closing Friction Tight Cover
  • Neoprene gasket on underside of cover for sealing
  • Base and Cover are stainless steel for corrosion resistance
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Product Details


Application Marine Wiring Devices
Color Stainless
Environmental Conditions Watertight
Insulation Insulated Body
Item Type Hull Mount Single
Material Thermoplastic
Material - Mounting Hardware Screw Mounting
Number Of Poles 3-Pole
OEM Brand Name Hubbell Wiring Device-Kellems
Performance Environmental - Moisture Resistance - IP56 Suitability
Temperature Rating Maximum Continuous: 75° C; Minimum Continuous: -40° C w/o impact
UPC 783585040585


Display Size Standard Sized Product

Electrical Ratings

Amperage Rating 50 A
Connectivity Pressure Terminal Screws
Current / Amperage Rating 50 A
Current Rating 50 A
Dielectric Strength Withstands 3000V Minimum in
Phase Single Phase
Voltage Rating 125/250 VAC
Wattage 12500

Conductor Related

Number Of Wires 4-Wire Grounding
Wire Size #6 AWG

Certifications and Compliance

Industry Standard(s) UL Listed


Carton Quantity 5

Resources and Downloads

Installation/Instruction Manual (IOM)


Marine Electrical Products