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The SIEMENS 3RU21161CB1 is an overload relay designed for motor protection, sized S00, and CLASS 10. It features stand-alone installation with screw terminals for both the main and auxiliary circuits. This relay supports manual-automatic-reset functionality. It provides inverse-time delayed protection for loads with normal starting against high temperature rises due to overload or phase failure.
The Siemens SIRIUS 3RU21161CB1 thermal overload relay protects three-phase and single-phase AC and DC motors with temperature compensation over a -40°C to +60°C range.
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