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Black nylon locking connector with straight screw-terminal housing

Hubbell Incorporated

Hubbell Wiring Device-Kellems HBL7484V Midget Locking Connector ML3-15R 15 A 125/250V AC 3 Pole 3 Wire Black

SKU CH-BXT8-JDBK1

A straight 15 A locking connector rated 125/250 V AC with three poles, screw terminals and a shatter-resistant nylon housing

  • Type3 Pole 3 Wire
  • ColorBlack
  • Locking mechanism secures power connection with ML3-15R configuration
  • 15 A rating supports 125/250V AC single-phase loads
  • Shatter-resistant nylon housing withstands impact in IP20 environments
  • Screw terminals accept cable diameters from .3 to .43 in
  • Hinged wiring style speeds installation on 3-pole 3-wire circuits

Hubbell ML3-15R Locking Connector

The Hubbell HBL7484V is a straight midget locking connector rated at 15 A and 125/250V AC for single-phase circuits. Its three-pole, three-wire configuration suits equipment that requires a secure twist-lock connection in commercial or light-industrial settings. The black nylon housing resists shattering and cracking under mechanical stress. Screw terminals accept conductors sized for cable diameters between .3 in and .43 in.

Sustained-load behaviour

The IP20-rated nylon body and brass contacts maintain stable contact resistance during continuous 15 A operation without forced cooling. The shatter-resistant housing withstands vibration and thermal cycling that can loosen lesser connectors over time. Hinged wiring style keeps the terminal screws accessible for periodic re-torquing without disassembling the entire device. No shroud is present, so the installer must ensure adequate strain relief on the cable side.

Build and day-to-day use

The connector uses a hinged nylon shell that opens for wiring and snaps shut, eliminating loose caps or covers that can be lost on site. Screw terminals are standard, so no special crimp tools are required for field termination. The ML3-15R NEMA configuration mates only with matching inlets, preventing accidental cross-connection with other voltage ratings. Black colour coding aids quick visual identification in panels or on stage-power distros.

Highlights

  • Locking mechanism secures power connection with ML3-15R configuration
  • 15 A rating supports 125/250V AC single-phase loads
  • Shatter-resistant nylon housing withstands impact in IP20 environments
  • Screw terminals accept cable diameters from .3 to .43 in
  • Hinged wiring style speeds installation on 3-pole 3-wire circuits

Specifications

BrandHubbell Wiring Device-Kellems
ModelHBL7484V
Type3 Pole 3 Wire
ColorBlack

Questions about this item

How much heat does the ML3-15R generate when running at 15 A all day?

The connector is rated for 15 A continuous at 125/250V AC with an IP20 housing; it produces only normal resistive warmth and no forced cooling is required.

What cable and wiring tools are needed to install the HBL7484V?

Use 3-wire cable between .3 and .43 in diameter, strip the conductors and terminate them under the screw terminals with a standard screwdriver.

Will this ML3-15R connector mate with an older ML2-15R inlet I already have?

No — the ML3-15R is a 3-pole 3-wire configuration, while the ML2-15R is a 2-pole 2-wire design, so the blade patterns do not match.

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