Siemens 3RU2116-1HB0 is a compact, three-pole S00 size thermal overload relay designed for motor protection and direct mounting on Siemens 3RT contactors. It offers an adjustable current range of 5.5 to 8.0 A with Class 10 protection and is rated for main circuit voltages up to 690 V AC. The unit provides 1 normally open and 1 normally closed auxiliary contact (1NO-1NC), uses screw terminals for both main and auxiliary circuits, and supports Manual-Automatic-Reset operation. Designed to mount on Siemens 3RT2015/2016/2017/2018 series contactors, it is a member of the SIRIUS 3RU2 family of thermal overload relays.
