The Schneider Electric Square D TVS4EMA12SI1 is a Type 1 Surge Protective Device (SPD) engineered for robust protection in three-phase, four-wire electrical systems. This device is designed to mitigate transient overvoltages, safeguarding critical equipment and ensuring operational continuity in demanding industrial environments. Its construction is optimized for direct connection to the service entrance or upstream of sensitive loads.

Technical details

• Series: Square D TVS
• Voltage Rating: 480Y/277 VAC
• Application: Three-phase, four-wire systems
• Type: Type 1 Surge Protective Device (SPD)
• Protection Mode: L-L, L-N, L-G, N-G
• Surge Current Rating: The specific surge current rating (e.g., kA per mode) should be verified against the manufacturer's datasheet for precise application suitability.
• Indicator: Visual status indicator for operational monitoring.
• Connection: Designed for direct connection to the electrical service.

Applications & compatibility

This SPD is commonly deployed in facilities requiring comprehensive surge protection for three-phase power distribution. Applications include manufacturing plants, data centers, commercial buildings, and any industrial setting with sensitive electronic equipment susceptible to lightning strikes or utility-grid induced surges. It is compatible with standard 480Y/277 VAC three-phase electrical services.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the Schneider Electric Square D TVS4EMA12SI1 or contact our technical team for cross-reference assistance with compatible surge protection solutions.