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White nylon flanged locking inlet with five blades, 30A 120/208V three-phase

Hubbell Incorporated

Hubbell Incorporated HBL2815 30A 120/208V 3PH L21-30P 4P5W video accessory

SKU CH-EJ4F-FCD3B

A 30 A three-phase flanged locking inlet rated for 120/208 V AC with a NEMA L21-30P configuration

  • Product typeLocking Devices
  • Overall length4.3
  • Product colorWhite
  • Product weight0.25
  • 30 A three-phase power for demanding equipment
  • L21-30P locking plug prevents accidental disconnection
  • IP20 and NEMA 12/4X ratings resist dust and moisture
  • Impact-resistant nylon housing withstands tough environments
  • Compact 4.3 in flanged inlet fits standard flush mounts

Hubbell HBL2815 30A Three-Phase Inlet

The Hubbell HBL2815 is a 30-amp flanged locking inlet rated for 120/208 V AC three-phase power. It uses the NEMA L21-30P configuration with four poles and five blades. The nylon housing and flange provide impact and moisture resistance. This inlet suits industrial or commercial installations that require a secure, flush-mounted connection point.

IP20 Rating and Nylon Construction

The device carries an IP20 rating and NEMA Type 12, 4X enclosure ratings for protection against dust and splashing water. White impact-modified PBT and nylon materials resist mechanical stress and environmental exposure. With a face diameter of 2.23 in and flange diameter of 3.06 in, it fits standard flush-mount cutouts. Normal operation stays within the 30 A continuous current rating without special cooling.

Three-Phase Load Handling

Under sustained three-phase loads the inlet maintains its 30 A rating up to 3 hp at the rated voltage. The grounded, five-wire wiring style supports balanced distribution across all phases. Locking blades prevent accidental disconnection during vibration or cable movement. Installations should verify that branch-circuit protection and conductor sizing match the 30 A rating for continuous duty.

How it compares

Measured against everything we stock in AV Accessories & Components, at today’s prices. Recalculated every night.

Price $53.99
Pricier than about 58% of the 3,838 comparable items (median $41.99).

Specifications

Product
Brand nameHubbell Wiring Device-Kellems
Model nameHBL2815
Product typeLocking Devices
Product colorWhite

Questions about this item

How do I install the Hubbell HBL2815 flanged inlet and what step is often missed?

Mount the 3.06 in flanged inlet flush, secure with standard wiring, and connect all five blades including the ground terminal — the ground connection is the step most often missed.

What maintenance or replacement will the Hubbell HBL2815 need over time?

The impact-modified PBT housing and nylon flange resist moisture and impact; inspect the five blade contacts periodically and replace the inlet if any blade shows pitting or overheating.

What limit appears first on the Hubbell HBL2815 during sustained three-phase loads?

The 30 A continuous rating at 120/208 V AC is the first limit; sustained three-phase current above 30 A will trip upstream protection before the 3 hp horsepower rating becomes a factor.

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