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Black industrial locking receptacle, rectangular flush-mount body with four screw terminals, matte nylon finish

Hubbell Incorporated

Hubbell Incorporated HBL7410B Locking Receptacle 20A 120/208V AC 4 Pole 4 Wire Black

SKU CH-FQAA-C3RJ6

Industrial 20 A locking receptacle with four poles and four wires rated for 120/208 V AC in a black nylon housing

  • Type4 Pole 4 Wire
  • Length1.900
  • ColorBlack
  • Weight0.25
  • 20 A three-phase power for heavy-duty equipment
  • 120/208 V AC rating matches industrial supply
  • Four-pole four-wire layout carries all phases safely
  • Impact-modified PBT housing resists knocks and chemicals
  • Flush-mount design installs cleanly in panels

Industrial Locking Receptacle 20A

This 20 amp locking receptacle accepts four wires across four poles for three-phase power distribution. The straight orientation and screw-terminal wiring suit panel or flush-mount installations in commercial and industrial environments. Rated for 120/208V AC, it serves equipment that requires a secure, polarized connection. The black nylon housing resists impact in demanding settings.

NEMA 1 Enclosure Limits

The device carries a NEMA 1 enclosure rating, meaning it is intended for indoor use where falling dirt is the primary concern. It provides no protection against water, oil, coolant spray or corrosive atmospheres. Installations in wash-down areas, outdoor enclosures or hazardous locations will require a higher-rated receptacle or an additional protective enclosure. The non-flanged, single-gang body mounts flush without a cover.

Four-Pole Four-Wire Configuration

The defining specification is the four-pole, four-wire layout rated at 20 amps and 120/208V AC three-phase. This pin arrangement only mates with a matching locking plug of the same configuration; it will not accept standard NEMA straight-blade or other locking plugs. Buyers needing a different pole count, wire count, voltage split or current rating must select a different part.

Highlights

  • 20 A three-phase power for heavy-duty equipment
  • 120/208 V AC rating matches industrial supply
  • Four-pole four-wire layout carries all phases safely
  • Impact-modified PBT housing resists knocks and chemicals
  • Flush-mount design installs cleanly in panels

Specifications

BrandHubbell Wiring Device-Kellems
ModelHBL7410B
Type4 Pole 4 Wire
Length1.900
ColorBlack
Weight0.25

Questions about this item

Should I choose the 4-pole 4-wire version or a different pole count for my three-phase circuit?

This receptacle is built as a 4-pole 4-wire device rated 20 A at 120/208 V AC three-phase; select it only when your installation requires exactly four current-carrying conductors plus ground.

What does the 20 A rating mean when the receptacle is installed in a panel?

The 20 A rating is the maximum continuous current each pole can carry at 120/208 V AC three-phase when wired with screw terminals in a NEMA 1 enclosure.

Which wiring standard does the screw-terminal interface follow and what wire sizes does it accept?

The screw terminals accept standard copper conductors sized for 20 A circuits; the device is a non-NEMA locking configuration rated for 120/208 V AC three-phase.

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