Main ST Collective NEMA L16-30P & L16-30R Grounding Locking Plug and Connector Set

30 Amp • 480 Volt AC • Heavy-Duty Industrial Twist Lock Power Set

Available in 1PK, 2PK, 4PK, 6PK, 8PK, 10PK, 12PK, 15PK & 20PK

Power your equipment with confidence using the Main ST Collective NEMA L16-30P & L16-30R Grounding Locking Plug and Connector Set. Designed for demanding commercial and industrial applications, this complete twist-lock power set provides one matching locking plug and one matching locking connector per set, delivering a secure, dependable electrical connection for 480V equipment.

Whether you're building custom extension cords, servicing industrial generators, wiring manufacturing equipment, powering commercial facilities, outfitting race trailers, operating portable power distribution systems, or maintaining heavy-duty machinery, these industrial-grade locking devices are engineered for long-lasting performance. The twist-lock design helps prevent accidental disconnects while providing reliable power in environments subject to vibration, movement, and continuous use.

Available in multiple pack sizes, these complete plug and connector sets are ideal for electricians, contractors, maintenance departments, fabrication shops, fleet service, industrial facilities, and professionals who regularly build or repair heavy-duty power cords.

About Main ST Collective

Main ST Collective is the in-house hardware and electrical parts brand of Main Street Eshop, created for automotive enthusiasts, RV owners, racers, fabricators, contractors, commercial facilities, industrial users, and professional technicians.

Our mission is simple—to provide dependable, commercial-quality products that perform in real-world applications. From electrical connectors and replacement plugs to automotive hardware and workshop essentials, Main ST Collective products are selected for durability, reliability, and value.

About Main Street Eshop

Main Street Eshop supplies premium automotive, electrical, industrial, RV, racing, trailer, and shop equipment for professionals and DIY customers alike.

Whether you're wiring a commercial facility, maintaining industrial equipment, powering specialty machinery, outfitting a race trailer, servicing generators, or upgrading your workshop, Main Street Eshop offers dependable products designed to keep your equipment operating safely and reliably.

Product Features

✔ Complete NEMA L16-30P Plug & L16-30R Connector Set

✔ One Matching Plug & Connector Per Set

✔ 30 Amp • 480 Volt AC Rating

✔ 3 Pole • 4 Wire Grounding Configuration

✔ Heavy-Duty Industrial Construction

✔ Twist-Lock Design Helps Prevent Accidental Disconnects

✔ Heavy-Duty Brass Internal Components

✔ Secure Screw Terminal Wire Connections

✔ Easy Wire Assembly

✔ Designed for Long Service Life

✔ cUL Listed

✔ NEMA Rated

Specifications

Plug

Configuration: NEMA L16-30P

Current Rating: 30 Amps

Voltage Rating: 480 VAC

Grounding: Yes

Connection Type: Twist Lock

Construction: Heavy-Duty Commercial / Industrial Grade

Connector

Configuration: NEMA L16-30R

Current Rating: 30 Amps

Voltage Rating: 480 VAC

Grounding: Yes

Connection Type: Twist Lock

Construction: Heavy-Duty Commercial / Industrial Grade

Shared Specifications

Poles: 3

Wires: 4

Terminal Material: Heavy-Duty Brass

Color: Black

Certification: cUL Listed

NEMA Designation Molded into Device

Why Choose Main ST Collective Electrical Products?

Main ST Collective electrical products are engineered to provide dependable performance wherever secure, reliable power is required.

Ideal for:

✔ Industrial Equipment

✔ Manufacturing Facilities

✔ Commercial Buildings

✔ Workshops & Garages

✔ Race Trailers

✔ RV Service Equipment

✔ Portable Generators

✔ Temporary Power Distribution

✔ Fabrication Shops

✔ Construction Sites

✔ Agricultural Equipment

✔ Maintenance Departments

✔ Mobile Service Vehicles

✔ Custom Heavy-Duty Power Cords

The twist-lock system provides a secure electrical connection that resists vibration and accidental unplugging, making it ideal for demanding industrial and commercial environments.

Installation Features

• Complete matching plug and connector set

• Twist-lock connection provides a secure, vibration-resistant electrical connection

• Easy-to-wire screw terminal assembly

• Heavy-duty brass contacts maximize conductivity

• Commercial-grade construction built for demanding applications

• Designed to resist wear and overheating during continuous operation

Available Pack Sizes

Choose the quantity that best fits your project:

• 1 Pack (1 Plug + 1 Connector)

• 2 Pack (2 Plugs + 2 Connectors)

• 4 Pack (4 Plugs + 4 Connectors)

• 6 Pack (6 Plugs + 6 Connectors)

• 8 Pack (8 Plugs + 8 Connectors)

• 10 Pack (10 Plugs + 10 Connectors)

• 12 Pack (12 Plugs + 12 Connectors)

• 15 Pack (15 Plugs + 15 Connectors)

• 20 Pack (20 Plugs + 20 Connectors)

Perfect for individual repairs, contractors, electricians, maintenance departments, fabrication shops, industrial facilities, and commercial inventory.

Common Applications

✔ Industrial Power Distribution

✔ Manufacturing Equipment

✔ Commercial Machinery

✔ Generator Connections

✔ Temporary Power Systems

✔ Race Trailer Electrical Systems

✔ Workshop Equipment

✔ Construction Equipment

✔ Agricultural Facilities

✔ Maintenance Operations

✔ Mobile Service Equipment

✔ Custom Industrial Extension Cords

Package Contents

Quantity selected from the listing variant:

Each set includes:

• 1 × Main ST Collective NEMA L16-30P Grounding Locking Plug

• 1 × Main ST Collective NEMA L16-30R Grounding Locking Connector

Available Pack Sizes:

1PK • 2PK • 4PK • 6PK • 8PK • 10PK • 12PK • 15PK • 20PK

Buyer Notes

✔ Verify your electrical application and NEMA configuration before ordering.

✔ Intended for 30A, 480V AC NEMA L16-30 applications.

✔ Each pack contains one matching plug and one matching connector per set.

✔ Always disconnect power before wiring electrical devices.

✔ Installation should comply with all applicable local electrical codes.

✔ Professional installation is recommended for commercial and industrial electrical equipment.

✔ Genuine Main ST Collective products supplied by Main Street Eshop.