Leviton Telcom M3347-YB Surge Protection Panel 347 Vac

Product Description

The LEVITON TELCOM M3347-YB is a surge protective device (SPD) panel designed for Wye-configured electrical distribution systems operating at 347 VAC. It provides transient overvoltage protection at the panel level, helping to shield connected loads and downstream equipment from damaging voltage spikes caused by lightning, utility switching, or inductive load events. This type of SPD panel is installed by licensed electricians working on commercial or industrial electrical systems where 347 VAC Wye distribution is the standard service configuration.

The M3347-YB is suited for commercial and light industrial applications where 347 VAC Wye service is common, including multi-tenant commercial buildings, retail facilities, and similar structures served by this distribution configuration. Panel-mounted SPDs like this unit are installed at the service entrance or sub-panel level to provide whole-panel surge protection for the circuits they serve.

Key Features

• Designed for Wye-configured 347 VAC electrical distribution systems
• Panel-level surge protection guards downstream equipment and loads
• Single-unit form factor for straightforward panel installation
• Addresses transient overvoltage events from lightning and switching surges
• Sold as an individual unit (each)

Compatibility

Designed as an OEM-style panel-mount surge protective device for Wye-configured 347 VAC electrical distribution panels in commercial and industrial service applications.

Installation Notes

Installation of panel-mounted SPD devices must be performed by a licensed electrician in accordance with applicable NEC requirements, including Article 285 governing surge protective devices. De-energize the panel and verify absence of voltage with a calibrated meter before beginning work. Follow the manufacturer's wiring instructions for proper connection to the Wye bus configuration. Local authority having jurisdiction (AHJ) requirements may apply and should be confirmed before installation.