RCD Tester / Leakage Circuit Breaker Tester

The TASI TA872A RCD Tester is a professional electrical safety testing instrument designed for verifying the performance of residual current devices (RCD), earth leakage circuit breakers, leakage protection switches and low-voltage electrical protection systems. It accurately measures trip current and trip time, while also supporting line-to-earth voltage and neutral-to-earth voltage measurement to help engineers evaluate the operating condition of electrical safety protection devices. Featuring a compact and durable design, the TA872A Leakage Circuit Breaker Tester is ideal for on-site inspection, installation verification and routine electrical maintenance. The instrument provides multiple leakage current test selections to meet different testing requirements for RCDs, RCBOs and various leakage protection devices. Built-in data storage, backlit display, auto power-off and USB data transfer functions allow users to record test results, export measurement data and manage inspection reports efficiently. The TA872A Residual Current Device Tester is widely used in electrical safety inspection, fire protection testing, building electrical acceptance, power distribution maintenance, industrial factory electrical maintenance, property facility management, railway and transportation electrical systems, EV charging station installation inspection, commercial building power systems, mechanical and electrical installation projects, and third-party electrical safety assessment services. It is suitable for testing leakage protection devices installed in distribution boxes, electrical cabinets, residential power systems, industrial control panels and low-voltage distribution networks. The instrument helps identify protection failures, abnormal tripping performance and insufficient leakage protection sensitivity, ensuring safer operation of electrical equipment and power systems.