7SR1053-2JA21-2EB0 SIEMENS

The 7SR1053-2JA21-2EB0 is a Siemens protection relay designed for comprehensive circuit breaker control and protection. It comes in an S4 enclosure, equipped with 4 current transformer inputs and 6 binary inputs/outputs, along with 10 LEDs for clear indication of relay status and events. The measuring inputs are configurable for either 1A or 5A, operating at 50 Hz. It supports a wide range of auxiliary voltages from 24V to 60V DC, with a threshold binary input voltage of 19V DC. This standard version is supplied without a cover, featuring a front-mounted USB interface and a rear RS485 interface for communication and configuration. The relay incorporates standard protection functions, which are included in all versions, ensuring reliable and efficient protection. It is designed without a thermobox and includes painted modules for enhanced durability and resistance to environmental factors. This relay provides a versatile and robust solution for circuit breaker protection applications.