Siemens 3RS1120-1DD30

The temperature monitoring relay incorporates a Type J thermocouple and operates within a temperature range of 0 to +600 °C. It functions with a control voltage of 24 VAC/DC and includes a total of two sensor inputs for enhanced monitoring capabilities. The device is equipped with one normally open contact and one change-over contact, facilitating versatile integration in various applications.

With a compact width of 22.5 mm, the relay is designed for efficient use of panel space. Its screw terminal connections allow for straightforward wiring, while the depth of 91 mm and height of 102 mm ensure a robust installation. Notably, the product does not allow for external reset and does not support error registration, making it essential to incorporate within systems that require precise temperature management. This relay is designated as a phased-out product, with the preferred successor being the model 3RS2600-1BA30.