Leviton Telcom X3277-YC Spd Panel Wye 277 Vac

Product Description

The LEVITON TELCOM X3277-YC is a surge protective device (SPD) panel configured for Wye electrical systems operating at 277 volts AC. It provides transient voltage surge suppression at the panel level, protecting downstream electrical equipment from damaging voltage spikes caused by lightning, utility switching, and internal load switching. This type of SPD panel is typically installed by licensed electricians in commercial and light industrial facilities where 277 VAC lighting circuits and distribution panels are common. The X3277-YC is sold as a single unit and is classified under hardware accessories for electrical distribution applications.

The X3277-YC is suited for commercial electrical systems using Wye-configured 277 VAC distribution, commonly found in office buildings, warehouses, retail facilities, and light industrial environments. These systems typically run 277 VAC single-phase loads such as fluorescent and LED lighting off a 480Y/277 VAC three-phase Wye service. Installation at the panel level provides whole-circuit surge protection for connected loads, reducing equipment damage and downtime from transient voltage events.

Key Features

• Designed for Wye-configured 277 VAC electrical systems
• Panel-level surge protective device (SPD) for transient voltage suppression
• Protects downstream equipment from lightning and switching surges
• Sold as a single unit (each)
• Applicable to commercial and light industrial distribution applications

Compatibility

Designed as an OEM-style SPD panel replacement or new installation component for Wye-configured 277 VAC electrical distribution panels in commercial and light industrial settings.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC Article 285 governing surge protective devices. De-energize and lock out the panel before beginning any wiring connections. Verify that the service configuration is Wye at 277 VAC before installing this unit, as installing an incorrectly rated SPD can result in equipment damage or failure. Follow all local electrical codes and the manufacturer installation instructions for proper mounting and connection.