Siemens AG 3RU1116-0JB0 Thermal Overload Relay

Siemens 3RU1116-0JB0 Thermal Overload Relay is a compact SIRIUS overload device (Size S00) for motor protection that mounts on compatible Siemens 3RU11 contactors. It provides an adjustable current range of 0.7 to 1 A and includes a 1 NO + 1 NC auxiliary contact with a manual-automatic reset, enabling trip signaling and flexible restart options. The unit uses screw-terminal connections for both the main circuit and the auxiliary circuit, is rated for up to 690 V insulation with IP20 front protection, operates from -20 to +70 C (up to 2,000 m above sea level), and has typical power loss around 6.6 W; its 8 g / 10 ms shock resistance supports rugged industrial environments. This overload relay is part of Siemens' motor-protection lineup and is superseded by the 3RU2116-0JB0 in newer catalog lines.