The SCHNEIDER ELECTRIC SQUARE D T9A is a zero sequence current sensor designed for precise current measurement within electrical distribution systems. This toroid sensor is integral to ground fault protection schemes, providing reliable monitoring and detection capabilities essential for system safety and operational continuity. Its design facilitates accurate measurement of residual currents, enabling prompt identification of ground faults.

Technical details

• Series: Square D T9A
• Type: Zero Sequence Current Sensor / Inductor
• Core Type: Toroidal
• Accuracy Ratio: 1000:1
• Function: Ground fault detection and monitoring
• Application: Designed for use in comprehensive ground fault protection systems
• Measurement Capability: Detects residual current in three-phase systems
• Construction: Robust design for industrial environments

Applications & compatibility

This Square D T9A sensor is commonly employed in industrial facilities, commercial buildings, and power distribution networks requiring robust ground fault protection. It is compatible with Schneider Electric's ground fault relay systems and other protective devices designed to monitor residual currents in three-phase electrical installations, ensuring the safety of personnel and equipment.

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 T9A or contact our technical team for cross-reference assistance with compatible ground fault protection components.