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Siemens 3RU1146-4HB0 - Thermal Overload Relay 36-50A

Siemens
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Siemens 3RU1146-4HB0 is a thermal overload relay designed for protecting three-phase AC motors from damage due to overload, phase failure, and phase imbalance. It operates within a robust current range of 36 to 50 amps and is part of the reliable Sirius 3RU11 family, featuring a compact and durable construction for demanding industrial panel installations. This device complies with relevant international standards for motor protection and is typically applied in machinery, conveyor systems, and pump controls where reliable motor protection is critical.

Key Features & Specifications
  • Type: Thermal Overload Relay, Manual Reset
  • Voltage: For use in systems up to 690V AC
  • Current: Adjustable range from 36A to 50A
  • Relay Style: Thermal, bi-metallic strip operation
  • Family: Sirius 3RU11
  • Weight: 10 lb
  • Standards: Complies with IEC/EN 60947-4-1, UL 508
  • Applications: Protection for three-phase motors in industrial machinery, pumps, and fans


Product Identification
  • UPC: 075455441256
  • GTIN: 04011209300750