7SR1053-2LA21-2EB0 SIEMENS

The 7SR1053-2LA21-2EB0 Siemens is a versatile protection relay designed for comprehensive circuit breaker control and protection. Housed in a compact S4 enclosure, this relay is equipped with 4 current transformer inputs and 6 binary inputs/outputs, providing extensive monitoring and control capabilities. The device front features 10 LEDs for clear indication of relay status and fault conditions. It supports both 1A and 5A measuring inputs at 50 Hz, ensuring compatibility with various current transformer configurations. The relay operates on a wide auxiliary voltage range of 60-240 V AC/DC, enhancing its adaptability to different power systems. A threshold binary input of 44 V AC/DC adds to its flexibility in interfacing with external devices. Communication options include a front USB interface for local access and a rear RS485 interface for remote communication. This standard version comes without a cover and thermobox, suitable for controlled environments. The protection function package includes standard protection functions, ensuring reliable and efficient protection of electrical assets. Painted modules contribute to the relay's durability and resistance to environmental factors.