Square D Surgelogic Surge Protective Device, 500kA 208Y/120V 3-Phase 4-Wire

Square D Surgelogic Surge Protective Device, 500kA 208Y/120V 3-Phase 4-Wire, UL Type 1

The Square D Surgelogic surge protective device delivers 500 kA surge current protection for 208Y/120 V 3 phase 4 wire electrical systems. This UL Type 1 SPD is tested to UL 1283 C and is built for external mounting, giving installers convenient access for retrofitting and maintenance without modifying internal panel configurations. Housed in a steel enclosure and rated for a 150 V maximum continuous operating voltage (Uc), it is engineered for dependable transient voltage protection in commercial and industrial power distribution systems.

Key Features

• Surge Current Rating: 500 kA surge current with a 20 kA nominal discharge current and 15 kA impulse current (Iimp) for robust transient suppression.
• Rated Operational Voltage: 208Y/120 V AC (Ue) for 3 phase 4 wire systems.
• Maximum Continuous Operating Voltage: 150 V (Uc) for reliable steady-state performance.
• Durable Construction: Steel enclosure suited for external mounting and long-term durability.
• Provided Equipment: Alarm enable/disable switch, switch-disconnector with integrated off/on/automatic switch, and surge counter for at-a-glance monitoring.
• Local Signalling: Green status LED per phase for normal operation and red status LED per phase for fault indication.
• Connection Terminals: Lugs terminal accepting AWG 8...AWG 1/0 conductors.
• Operating Environment: Rated for -20-65 °C ambient operating temperature and an operating altitude of 0...12000 ft.

Certifications & Compliance

• UL Type 1, Tested to UL 1283 C
• UL 1449: ed. 5
• UL 96A
• CSA C22.2 No 269.1
• Mercury Free
• RoHS EU: Compliant with Exemptions

Technical Specifications

• Take Back: No
• Returnability: Yes
• Sustainable Packaging: No
• Mercury Free: Yes
• Packaging Without Single Use Plastic: No
• ROHS Eur In Scope: Yes
• Recycled Metal Content At Cr Level: 0 %
• Legacy WEEE Scope: In
• Packaging Made With Recycled Cardboard: No
• With Recycled Cardboard: No
• Without Single Use Plastic: No
• ROHS Exemption Information: Yes
• Uc Maximum Continuous Operating Voltage: 150 V
• China ROHS In Scope: No
• Short Circuit Protection: 200 kA
• Ambient Air Temperature For Operation: -20-65 °C

Typical Applications

• Commercial and Industrial Electrical Panels
• Retrofit Surge Protection Installations
• 208Y/120V 3-Phase 4-Wire Power Distribution Systems
• Externally Mounted Panelboard Protection
• Renovation and New Construction Electrical Systems

Why Square D?

Square D Surgelogic surge protective devices pair a durable steel enclosure with UL Type 1 listing and UL 1449 ed. 5 testing to deliver dependable transient voltage protection for demanding electrical systems. Local LED signalling, a surge counter, and an integrated switch-disconnector make monitoring straightforward, supporting reliable, code-compliant performance in professional electrical installations.