The 3RS7002-1DE00 is a signal separator/amplifier manufactured by Siemens. It is a DIN-style analogue device and works as a converter, capable of converting between 0–20 mA and 24 VDC/VAC. It is designed for installation in electrical control systems, providing a galvanically-isolated input that separates and amplfies current signals for relay control of motors and actuators. The device is typically used for the control of larger electric motors, helping to ensure accuracy and noise-free operation.