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Siemens 3UA7020-1A - Thermal Overload Relay (1-1.6A)

Siemens
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Siemens 3UA7020-1A is a thermal overload relay from the 3UA7 World Series designed to provide reliable motor protection against phase failure and overload conditions. It operates with a current adjustment range of 1 to 1.6 A, suitable for corresponding motor full-load currents, and is constructed in a robust, compact housing with a manual reset function. This relay complies with international industrial standards for motor protection devices. It is typically applied in industrial control panels and motor starter combinations for pumps, fans, and conveyors.

Key Features & Specifications
  • Type: Thermal overload relay, manual reset, 3-pole
  • Voltage Rating: Dependent on associated contactor coil voltage
  • Current Rating: 1 - 1.6 A adjustable
  • Relay Style: Thermal, bi-metallic
  • Family: World Series
  • Item Subcategory: Overload Relay
  • Weight: 10 lb
  • Amperage Minimum: 1 A
  • Amperage Maximum: 1.6 A
  • Standards: IEC/EN 60947-4-1, UL 508, CSA C22.2 No. 14
  • Applications: Motor protection in industrial control systems for pumps, fans, compressors, and conveyors
  • Configuration: Direct mounting on compatible contactors
  • Protection: Protection against overload and phase failure
  • Aux Contacts: Typically includes 1 NC (95-96) and 1 NO (97-98) alarm/control contacts
  • Tripping Class: Class 10
  • Ambient Temperature Rating: -25°C to +60°C


Product Identification
  • Manufacturer Part Number: 3UA7020-1A