The Schneider Electric Square D TVS9EMA18SI1 is a Type 1 Surge Protective Device (SPD) engineered for robust protection in 3-phase, 3-wire electrical systems. This device is specifically designed to safeguard sensitive equipment and infrastructure from damaging transient overvoltages and surges commonly encountered in industrial and commercial environments. Its application is critical for maintaining the operational integrity and longevity of electrical networks.

Technical details

• Series: Square D TVS
• Type: Type 1 Surge Protective Device (SPD)
• System Configuration: 3-Phase, 3-Wire
• Protection Mode: L-L, L-G, L-N (Verify specific modes against manufacturer datasheet)
• Surge Current Rating: 18 kA per mode (Nominal) - This specification is derived from the '18SI' portion of the part number, indicating 18 kA.
• Voltage Rating: The specific system voltage (e.g., 120V, 240V, 480V) is not explicitly encoded in the provided part number and should be verified against the manufacturer's datasheet.
• Indicator: Visual status indicator for operational monitoring.
• Construction: Designed for direct connection to the electrical service entrance or distribution panel.

Applications & compatibility

This Schneider Electric Square D SPD is essential for protecting critical power systems in manufacturing plants, data centers, and commercial buildings. It is commonly integrated into main service entrances, distribution panels, and sub-panels to shield machinery such as motor control centers, variable frequency drives, Programmable Logic Controllers (PLCs), and other sensitive electronic equipment from transient voltage events.

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 TVS9EMA18SI1 or contact our technical team for cross-reference assistance with compatible Square D surge protection components.