Leviton Telcom 2816 Flanged Locking Outlet L21-30R

Product Description

The Leviton Telcom 2816 is a flanged locking outlet configured in a 4-pole, 5-wire arrangement to the NEMA L21-30R receptacle standard. It accepts a 30-amp, 120/208-volt three-phase load and locks the plug in place mechanically to prevent accidental disconnection under vibration or load. The flanged body mounts directly to a panel, enclosure, or equipment housing, making it a common termination point in commercial and industrial power distribution. Installation is performed by licensed electricians working with three-phase branch circuits.

This outlet is suited for commercial and light industrial applications where a secure, three-phase locking connection is required. Typical install scenarios include generator transfer panels, portable equipment hookups, temporary power distribution boxes, and industrial machinery panels. The L21-30R configuration is specific to 120/208-volt wye systems and is not interchangeable with other NEMA locking configurations. The flanged mounting style allows direct surface or panel installation without an additional outlet box in many enclosure applications.

Key Features

• NEMA L21-30R locking receptacle configuration for 120/208-volt three-phase wye circuits
• 4-pole, 5-wire design accommodates three hot legs, a neutral, and a ground
• 30-amp rating suitable for three-phase branch circuit loads
• Flanged body for direct panel or enclosure surface mounting
• Locking blade retention prevents accidental plug disengagement under load or vibration

Compatibility

Designed as an OEM-style flanged locking receptacle for 30-amp, 4-pole, 5-wire NEMA L21-30R three-phase wye applications in commercial and industrial electrical installations.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the branch circuit at the panel before mounting or wiring the receptacle. Verify that the supply circuit is rated for 30 amps at 120/208 volts three-phase wye before connecting. Do not use this receptacle on single-phase circuits or with NEMA configurations other than L21-30R.