Siemens 7SR1053-2LA21-2EA0

The Siemens 7SR1053-2LA21-2EA0 is a Size 4 molded case device designed for robust protection and control applications. It features four current transformer inputs and a combination of six binary inputs and six binary outputs, allowing versatile monitoring and control capabilities. The unit includes 10 LEDs for clear status indication and operates reliably on a 50/60 Hz AC/DC supply within a 60 to 240V range. With a binary input threshold set at 44 V AC/V DC, this standard version comes without a front cover and offers convenient connectivity options through a USB port on the front and an RS-485 port at the rear. It supports communication protocols such as IEC 60870-5-103 and Modbus RTU. This model is available through BSP Automation, providing a dependable solution for various industrial automation setups.