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Siemens 3RU21364QB0 - Thermal Overload Relay 47-57A

Siemens
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Siemens 3RU21364QB0 is a thermal overload relay from the Sirius family designed to protect three-phase AC motors from damage due to overcurrent conditions. It features a precise adjustable current setting range from 47 to 57 A and is engineered for reliable operation within standard industrial voltage systems. The relay is constructed in a compact, DIN-rail mountable enclosure measuring 3.78 x 2.402 x 4.37 inches (96 x 61 x 111 mm) and weighs 0.756 lb, ensuring robust protection in a space-saving design. It complies with relevant international industrial standards, reflecting its German engineering and manufacturing origin. This component is typically applied in motor control centers, machine tools, and conveyor systems to ensure operational safety and equipment longevity.

Key Features & Specifications
  • Type: Thermal Overload Relay, 3RU21 series, manual reset
  • Voltage Rating: For use in standard three-phase AC motor circuits
  • Current Rating: Adjustable, 47 - 57 A
  • Dimensions: 3.78 x 2.402 x 4.37 inch (96 x 61 x 111 mm)
  • Standards: Complies with relevant IEC/EN standards
  • Applications: Protection for three-phase AC motors in industrial control panels, machine tools, pumps, and fans
  • Relay Style: Thermal, bi-metallic trip mechanism
  • Amperage Minimum: 47 A
  • Amperage Maximum: 57 A
  • Family: Sirius
  • Country of Origin: Germany
  • Weight: 0.756 lb


Product Identification
  • UPC: 887621919764
  • GTIN: 00887621919764