Intermatic 120/208 VAC 4-Mode 50kA Surge Protective Device L5F23Y1DG1

Product Overview

The Intermatic L5F23Y1DG1 is a Type 2 surge protective device designed for 120/208 VAC 3‑phase Y electrical systems. It provides 4‑mode protection with a listed surge current rating of 50kA and includes an EMI/RFI filter.

This unit is intended for panel, service, and equipment surge protection in commercial and residential installations. Confirm model, electrical ratings, and local code requirements before selection and installation.

Key Features

• Model: L5F23Y1DG1 (Intermatic)
• Voltage: 120/208 VAC
• Phase: 3‑phase Y
• Mode: 4‑Mode (full system protection)
• Surge current rating: 50kA
• Type rating: Type 2
• Includes EMI/RFI filter
• Unit weight: 0.5 lb; master pack qty: 1

What this device does

The L5F23Y1DG1 provides transient voltage protection for 120/208 VAC 3‑phase Y electrical systems by diverting or suppressing surge energy. It is rated as a Type 2 surge protective device and includes an EMI/RFI filter to help reduce electromagnetic and radio‑frequency interference.

• 4‑Mode protection addresses line‑to‑line and line‑to‑ground transients on a 3‑phase Y system
• 50kA listed surge current rating indicates the device's surge handling capacity as provided by the manufacturer listing

Recommended applications

Use the L5F23Y1DG1 for surge protection at service entrances, distribution panels, and to protect sensitive equipment in commercial and residential electrical systems. The manufacturer lists typical applications including service entrance, panel, equipment protection, and contractor stock.

• Service entrance surge protection
• Panel and branch distribution protection
• Commercial and residential electrical systems
• Protecting connected equipment from transient events

Electrical ratings and compatibility

Confirm the device matches the system voltage and phase configuration before installation. The L5F23Y1DG1 is specified for 120/208 VAC on 3‑phase Y systems and is identified as a 4‑Mode, Type 2 SPD with a 50kA surge current rating.

• Voltage: 120/208 VAC
• Phase: 3‑phase Y
• Mode: 4‑Mode
• Type rating: Type 2
• Surge current rating: 50kA

Installation and code considerations

Electrical products must be selected and installed by a qualified professional in accordance with the application and the authority having jurisdiction. Confirm model number, UPC, voltage, phase, and any amperage or coordination requirements before ordering or installing.

• Verify compatibility with panel and system grounding arrangements
• Follow local electrical code and manufacturer guidance for installation
• Selection and installation should be performed by a qualified electrician

Before You Order

Confirm the model number and electrical ratings for your application before ordering. Electrical products should be selected and installed by a qualified professional in compliance with local codes and the authority having jurisdiction.

• Confirm model L5F23Y1DG1, UPC 078275151758, voltage 120/208 VAC, and 3‑phase Y configuration
• Verify coordination requirements (e.g., upstream fusing or device spacing) with your electrical engineer or installer

Ordering from Lumera Electric

Check the purchasing options shown on the Lumera Electric product page for Intermatic 120/208 VAC 4-Mode 50kA Surge Protective Device L5F23Y1DG1. For project quantities or additional ordering requirements, use Request a Quote and provide the required quantity.