The
TZS-AD Earth Leakage Relay is engineered to provide accurate and fast response to earth leakage faults in
3-phase electrical systems. Designed to operate
without an integrated Z-CT, it works in combination with external
TERASAKI Zero Phase Current Transformers (Z-CTs) such as
TZS-40, TZS-68, and TZS-100.
Supporting a wide control voltage range of 120/240VAC, the TZS-AD relay is suitable for diverse electrical environments. It continuously monitors leakage current signals from the connected Z-CT and activates protective mechanisms to prevent electrical shock, fire hazards, and equipment damage.
Built with TERASAKI’s trusted quality standards, the TZS-AD EL Relay offers stable operation, long service life, and dependable protection for industrial panels, commercial buildings, and power distribution systems.