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Black and white industrial twist-lock female socket with T-shaped blade orientation

LORDWORLD

LORDWORLD NEMA L7-20R 20A 277V ETL Female Socket

SKU CH-WQMJ-H6P5D

ETL-listed NEMA L7-20R female socket rated 20 A at 277 V for 10–18 AWG cord, twist-lock design prevents accidental mating

  • ETL Listed for safety compliance with UL 498 and CSA C22.2 standards
  • NEMA L7-20R locking design prevents accidental disconnection from 277V plug
  • Supports 20A at 277V delivering up to 5540W for industrial equipment
  • Accepts 18-10AWG cords including SJT, ST, SJO and SJOW types
  • Clearly marked X, Y, Z, G, W terminals simplify correct wiring installation

Industrial Locking Socket

This LORDWORLD NEMA L7-20R is a 20 amp 277 volt female connector built for industrial generator and equipment wiring. The twist-lock design mates with a matching L7-20P plug and the rotated T-shaped blade prevents accidental cross-connection. ETL listing confirms compliance with UL 498 and CSA C22.2 No. 42 standards for safety.

Installers Rewiring Cords

Electricians and maintenance crews who need a field-wireable replacement end for 18 to 10 AWG three-conductor cord will find the clearly marked X, Y, Z, G and W terminals straightforward. Users who require a different voltage rating, a non-locking straight blade or a higher amperage device should select an alternative connector.

Sustained Load Behaviour

At the full 20 amp rating the socket delivers 5540 watts continuously; the ampacity drops to 18 amp with 14/13 AWG, 13 amp with 16/15 AWG and 10 amp with 17/18 AWG conductors. Heavy-duty conducting materials and the locking action maintain secure contact under vibration and thermal cycling.

Highlights

  • ETL Listed for safety compliance with UL 498 and CSA C22.2 standards
  • NEMA L7-20R locking design prevents accidental disconnection from 277V plug
  • Supports 20A at 277V delivering up to 5540W for industrial equipment
  • Accepts 18-10AWG cords including SJT, ST, SJO and SJOW types
  • Clearly marked X, Y, Z, G, W terminals simplify correct wiring installation

Specifications

BrandLORDWORLD

Questions about this item

What cord gauge range do I need to own for this NEMA L7-20R socket to accept the wiring?

The socket accepts 18-10 AWG three-conductor cords including SJT, SJTW, ST, STW, SJO, SJOW and similar types listed in the specifications.

Will my existing NEMA L7-20P locking plug mate correctly with this female socket?

Yes — the rotated T-shaped blade on the socket is keyed to prevent accidental connection and ensures a secure twist-lock fit with a standard NEMA L7-20P plug.

How can I verify the socket is wired correctly after installation?

Terminals are marked X, Y, Z for line conductors, G for grounding and W for grounded; confirm each conductor lands on its marked terminal and the twist-lock action engages fully.

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