Siemens Overload relay for motor protection, size S00, 7-10AProduct Overview The 3RU2116 1JB0 thermal overload relay is designed for current dependent protection of three phase motors and electrical loads against overload, phase asymmetry, and phase failure. This Size S00, Class 10 relay features an adjustable current range of 7. 0 to 10 A and is optimized for direct mounting on Siemens 3RT contactors to save space while providing reliable motor protection. Key Features Current Range: 7. 0 to 10 A adjustment