Siemens 3RU2116-1DB0 Thermal Overload Relay

Siemens 3RU2116-1DB0 is a three‑pole, size S00 thermal overload relay designed to protect small to mid‑sized motors by providing adjustable overload protection in the 2.2 to 3.2 A range. It is intended for mounting on Siemens 3RT contactors (3RT2015/3RT2016/3RT2017/3RT2018) and features screw terminals for both the main circuit and the auxiliary circuit, enabling robust, field‑wired connections. The relay is part of the SIRIUS 3RU2 family and carries a Class 10 trip characteristic, making it suitable for standard industrial motor protection in panels, conveyors, pumps, fans, and other three‑phase equipment where compact, dependable protection is required.