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Black industrial NEMA L7-20R locking female connector with twist-lock design

LORDWORLD

LORDWORLD NEMA L7-20R 20A 277V Locking Female Connector

SKU CH-BJ9S-RMXQB

ETL-listed 20 A 277 V locking female connector for 10–18 AWG cord, rated 5 540 W

  • ETL listed for safety compliance with UL 498 and CSA C22.2#42 standards
  • Twist-lock design prevents accidental disconnection from NEMA L7-20P plugs
  • Supports 18-10 AWG cords for flexible wiring options
  • Rated 20 A at 277 V delivering up to 5540 W power
  • Clearly marked X, Y, Z, W, G terminals simplify installation

Industrial Locking Connector

The LORDWORLD NEMA L7-20R is a 20A 277V female cord-end connector built for industrial generator and power-distribution use. It carries an ETL listing to UL 498 and CSA C22.2 #42 standards. The twist-lock design mates only with a matching NEMA L7-20P plug.

NEMA L7-20R Rating

The single specification that decides fit is the NEMA L7-20R configuration rated 20 amps at 277 volts AC. The rotated T-shaped blade prevents accidental connection to other locking types. It supports cord gauges from 18 AWG up to 10 AWG with ampacity derating at smaller sizes.

Screw Terminal Wiring

Installation uses clearly marked screw terminals: line terminals labelled X, Y, Z; grounding terminal G; grounded terminal W. Strip the cord, insert wires under the correct screws and tighten. The most common error is reversing line and ground connections, which defeats the safety ground.

Highlights

  • ETL listed for safety compliance with UL 498 and CSA C22.2#42 standards
  • Twist-lock design prevents accidental disconnection from NEMA L7-20P plugs
  • Supports 18-10 AWG cords for flexible wiring options
  • Rated 20 A at 277 V delivering up to 5540 W power
  • Clearly marked X, Y, Z, W, G terminals simplify installation

Specifications

BrandLORDWORLD

Questions about this item

What does the 5540 W rating mean when this connector is installed in a generator circuit?

The 5540 W figure is the maximum continuous power the connector can carry at its full 20 A, 277 V rating, so a generator circuit protected at 20 A can deliver up to that load without overheating the contacts.

How does the NEMA L7-20R locking interface limit the amperage and voltage in practice?

The L7-20R standard defines a 20 A, 277 V AC rating; the twist-lock blades mechanically prevent mating with any other NEMA configuration, so the circuit cannot exceed those limits without a different connector.

What cable gauges and jacket types fit the terminal housing for a secure mount?

The connector accepts 10 AWG through 18 AWG three-conductor cords including SJT, SJTW, ST, STW, SJO, SJOW and similar jacket types; terminals are marked X, Y, Z for lines, W for grounded and G for grounding.

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