We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black and white industrial twist-lock male plug with T-shaped blade

LORDWORLD

LORDWORLD NEMA L7-30P Locking Plug 30A 277V ETL Listed

SKU CH-JFV8-1CYB0

ETL-listed NEMA L7-30P locking plug rated 30 A 277 V for 10-12 AWG cord, twist-lock design prevents accidental mating

  • ETL certified for safe 277 V industrial use
  • Twist-lock L7-30P design prevents accidental disconnection
  • Accepts 10–12 AWG cords for flexible wiring
  • Terminals marked X, Y, Z, G, W for correct installation
  • Heavy-duty construction rated 30 A at 277 V

NEMA L7-30P Industrial Locking Plug

This ETL Listed NEMA L7-30P male plug provides a 30 amp 277 volt AC connection for industrial generators and equipment. The twist-lock design with a rotated T-shaped blade prevents accidental mating with incompatible receptacles. Terminals are clearly marked X, Y, Z, W and G for straightforward wiring. Heavy-duty conducting materials ensure a robust, reliable link.

Suited for 30A 277V generator leads

Installers terminating 10 AWG cable at 30 amps or 11 to 12 AWG cable at 25 amps will find the connector compatible with a wide range of SJT, ST, SJE and SJO cord types. The locking action secures the connection in high-vibration environments. Buyers needing a lower amperage rating, a different voltage class or a non-locking straight blade connector should look elsewhere.

Rated 30 amps at 277 volts AC for 10 AWG conductors

The single decisive specification is the 30 amp 277 volt rating paired with 10 AWG conductor capacity, dropping to 25 amps for 11 to 12 AWG wire. This figure determines whether the plug matches the circuit and cable in your application. Compliance with UL 498 and CSA C22.2 No. 42 confirms the rating for North American industrial use.

How it compares

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

Price $19.99
Cheaper than about 60% of the 5,998 comparable items (median $24.99).

Specifications

Product
Brand nameLORDWORLD

Questions about this item

What cord gauge and type does the L7-30P plug accept?

The plug is rated for 30 A at 277 V with 10 AWG cord and 25 A at 277 V with 12/11 AWG cord. Compatible 3-conductor types include SJT, SJTW, SJTR, SJTW-R, SJTO, SJTOW, SJTOOW, ST, STW, STOW, STOOW, SJE, SJEW, SJEO, SJEOW, SJEOOW, SJ, SHJ, SJO, SJOO, SJOW and SJOOW.

Which terminals are marked on the plug and how do they correspond to the wiring?

Line terminals are marked X, Y and Z; the grounding terminal is marked G and the grounded (neutral) terminal is marked W. Strip the conductors, insert each into its labelled terminal and tighten the screws before assembling the housing.

What ongoing checks does the locking plug need after installation?

Periodically verify that the twist-lock action engages fully with the matching L7-30R receptacle, inspect the terminal screws for tightness and examine the cord grip and insulation for signs of heat damage or wear.

More in Tech Gadgets & Accessories

Similar items