NEMA L14-30P & L14-30C 30A Locking Plug Connector Set 2-Pack

NEMA L14-30 30A Locking Plug & Connector Set (2-Pack)

Power your generator, RV, transfer switch, or welding equipment with confidence using this industrial-grade NEMA L14-30 locking plug and connector set. Rated at 30 Amps, 125/250V, 60Hz, this 2-pack includes both the L14-30P (plug) and L14-30C (connector), giving you everything needed for a secure, compliant electrical connection in one package. Made in Mainland China.

Key Features

• 30A / 125-250V Rated: Handles heavy-duty power demands for generators, transfer switches, welding equipment, RVs, and trailers.
• 3 Pole, 4 Wire Grounding Design: Meets NEMA L14-30 standards for a safe, grounded connection that supports both hot legs, neutral, and ground.
• Secure Locking Mechanism: Twist-lock design keeps the plug firmly seated to prevent accidental disconnections — ideal for dynamic, mobile, or outdoor environments.
• Adjustable Rear Cord Clamp: Accommodates a range of wire sizes (AWG 10/12/14), making installation straightforward and flexible across various applications.
• Industrial-Grade Construction: Durable plastic housing (white & black) built to withstand demanding conditions and deliver long-term, reliable performance.
• 2-Pack Value: Includes 2 complete sets (2× L14-30P plug + 2× L14-30C connector) — great for replacements or new installations.

Specifications

What's in the Box

• 2× 30A Locking Plug (NEMA L14-30P)
• 2× 30A Locking Connector (NEMA L14-30C)

Common Applications

• Portable & standby generators
• Manual & automatic transfer switches
• RVs & travel trailers
• Welding equipment
• Industrial power distribution panels

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Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: What is the difference between the NEMA L14-30P and L14-30C in this set?

A: The NEMA L14-30P is the male plug that connects to the power source or generator cord, while the L14-30C is the female connector that attaches to the receiving end of the circuit, such as a transfer switch or extension cord. This set provides both components so you have a complete, matched connection pair.

Q: What wire gauges are compatible with this locking plug and connector set?

A: The adjustable rear cord clamp on both the L14-30P plug and L14-30C connector supports AWG 10, 12, and 14 wire sizes, offering flexibility for a wide range of generator and power distribution wiring configurations.

Q: Is this NEMA L14-30 set suitable for outdoor or generator use?

A: Yes. The industrial-grade plastic housing and secure twist-lock mechanism make this set well-suited for generator hookups, RV power connections, transfer switch wiring, and other demanding environments where a reliable, locked electrical connection is essential.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.