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Hubbell HBL27W76 watertight locking connector, thermoplastic elastomer body, smooth finish, nickel-plated brass contacts

Hubbell Incorporated

Hubbell HBL27W76 Watertight Locking Connector L16-20R 20A 480V

SKU CH-HFSB-B6MG1

A watertight locking connector rated 20 A at 480 V AC, NEMA L16-20R three-pole four-wire, with IP69K enclosure and nickel-plated brass screw terminals for cable diameters 0.375 in to 0.875 in

  • TypeWatertight Devices
  • Watertight protection for harsh environments with IP69K and NEMA 4X ratings
  • Reliable power delivery via nickel-plated brass contacts rated 20A 480V
  • Secure locking connection using NEMA L16-20R three-pole four-wire configuration
  • Flexible installation accepting cable diameters from .375 in to .875 in
  • Durable construction with UV-stabilised thermoplastic elastomer body operating from -40°C to +60°C

Hubbell Watertight Locking Connector L16-20R

The Hubbell HBL27W76 is a 20-amp, 480V AC watertight locking connector built for industrial power distribution. It features a three-pole, four-wire NEMA L16-20R configuration with nickel-plated brass contacts and screw terminals. The thermoplastic elastomer body includes UV-stabilised Valox components for durability in harsh environments. It accepts cable diameters from .375 in to .875 in and wire sizes from 18 AWG to 10 AWG.

Suitable Applications and Limits

This connector suits three-phase systems requiring NEMA 12, 4, 4X, 6, and 6P enclosure ratings plus IP69K moisture ingress protection. It operates continuously from -40°C to +60°C. It is not for installations needing a different NEMA pin configuration, voltage rating, or amperage capacity. Buyers requiring a plug body instead of a connector body should look elsewhere.

Decisive Specification NEMA L16-20R

The NEMA L16-20R designation defines the exact three-pole, four-wire mating interface for 20-amp, 480V AC three-phase power. Mismatching this configuration prevents safe connection to the corresponding receptacle or inlet. Verify the mating device carries the identical L16-20R marking before installation.

Highlights

  • Watertight protection for harsh environments with IP69K and NEMA 4X ratings
  • Reliable power delivery via nickel-plated brass contacts rated 20A 480V
  • Secure locking connection using NEMA L16-20R three-pole four-wire configuration
  • Flexible installation accepting cable diameters from .375 in to .875 in
  • Durable construction with UV-stabilised thermoplastic elastomer body operating from -40°C to +60°C

Specifications

BrandHUBBELL
TypeWatertight Devices

Questions about this item

What is the maximum continuous operating temperature before the connector reaches its thermal limit?

The connector is rated for continuous operation up to +60 °C, so sustained loads beyond that temperature would exceed its thermal limit.

How much heat does the connector generate during all-day use at 20 A?

The nickel-plated brass contacts and thermoplastic elastomer body are designed for continuous 20 A operation without overheating within the -40 °C to +60 °C range.

What mating plug or inlet is required to complete the L16-20R connection?

A matching NEMA L16-20P plug (3-pole, 4-wire, 20 A, 480 V AC) is needed for the connector to function.

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