Siemens 7SR4501-1GA10-1AA0

The Siemens catalog number 7SR4501-1GA10-1AA0 refers to the ARGUS non-directional overcurrent-time protection device, housed in a durable polycarbonate enclosure. This unit is designed to work with four current transformers, providing reliable overcurrent protection without directional sensing. It features two BI and two BQ inputs, as well as a pulse output for versatile monitoring options. The device includes nine LEDs for clear status indication and accepts a 1 A measuring input at 50/60 Hz. Auxiliary voltage is supplied via the current transformer, and there is a USB front interface available, though it does not support communication protocols. This protection relay is available through BSP Automation, offering a robust solution for industrial power system protection needs.