The Schneider Electric Square D TVS4EMA12SSWT1 is a surge protective device designed for three-phase, four-wire electrical systems. This unit is part of the EMA series, engineered to protect sensitive equipment from transient voltage events. It is commonly integrated into industrial control panels and power distribution systems where reliable operation is critical.

Technical details

• Series: EMA
• System Voltage: 480Y/277V
• Phase Configuration: Three-phase, four-wire
• Peak Surge Current Rating: 120 kA
• Nominal Discharge Current: 40 kA
• Maximum Continuous Operating Voltage (MCOV): 300V AC L-L, 175V AC L-G
• Protection Modes: L-L, L-G, L-N
• Indicator: Visual status indicator
• Enclosure Type: NEMA 4X

Applications & compatibility

This surge protective device is suitable for protecting equipment in demanding industrial environments. Applications include motor control centers, variable frequency drives, programmable logic controllers, and other critical automation components. It is designed for installation in facilities such as manufacturing plants, processing facilities, and data centers where power quality is paramount.

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 TVS4EMA12SSWT1 or contact our technical team for cross-reference assistance with compatible EMA series surge protection solutions.