Description

The Acrel ASJ20-LD1A IT Distribution System Residual Current Relay is a cutting-edge device designed for the precise measurement of A-type residual current. It features an intuitive streamer display that showcases current percentage, making monitoring effortless. This relay allows users to set the rated residual action current and configure the non-driving time limitation, ensuring optimal performance and safety.

With two-pair relay outputs, the ASJ20-LD1A provides versatile functionality, supporting both on-the-spot and long-distance testing and resetting. It is specifically designed for use in TT and TN system distributing circuits with alternating current at 50Hz and a rated voltage of 400V or below. This relay plays a crucial role in earth fault protection, preventing equipment damage and minimizing the risk of fire accidents caused by ground fault current, while also offering indirect contact protection against electrical shock hazards.

Specifications