Leviton 2421 20A 250V 3-Phase NEMA L15-20P Locking Plug – Industrial Grade

Product snapshot

The Leviton 2421 locking plug is built for 20 amp, 250 volt three‑phase power with a four‑wire configuration. It features a robust Black-White industrial design and a grounding connection that supports reliable performance in demanding environments. This locking plug is made in North America and is backed by an industry exclusive limited lifetime warranty, underscoring Leviton’s commitment to long term reliability.

Key benefits at a glance

• One piece contacts reduce friction and overheating for consistent power delivery.
• Unique cord clamp accepts a wide range of cord sizes, offering flexibility on the job site.
• Rugged nylon construction resists impact, sunlight, chemicals, and rough handling.
• Industry exclusive limited lifetime warranty adds protection beyond standard hardware.
• Made proudly in North America with grounding for safe three phase connections.

Where you might use it

Ideal for industrial settings where three phase power is needed, such as on heavy machinery, service trucks, and outdoor equipment setups. The locking mechanism helps maintain a secure connection during vibration or movement, while the four wire configuration supports reliable grounding.

In practice, technicians and installers may appreciate the plug for its balance of durability and practical features. The Black‑White styling signals its professional, industrial grade lineage, and the compact form helps with panel layouts and field retrofits without compromising performance.

Durability and safety features

• Rugged nylon housing resists environmental stressors common to job sites.
• Secure locking design reduces the risk of accidental disconnection during use.
• Grounding built into the plug supports safe operation of three phase equipment.

Warranty and origin

Leviton extends an industry exclusive limited lifetime warranty on this plug. It is manufactured in North America, aligning with the brand’s emphasis on quality and dependable performance over time.