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Siemens 3RU1116-1DB0 - Thermal Overload Relay (2.2-3.2A)

Siemens
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Siemens 3RU1116-1DB0 is a thermal overload relay from the Sirius family designed to provide reliable motor protection against overloads and phase failures. It operates with a current adjustment range of 2.2 to 3.2 A and is constructed for robust industrial use with a compact, 1 lb design. This device complies with relevant international standards for motor control and safety. It is typically applied in controlling and protecting three-phase AC motors within industrial automation systems, machine tools, and conveyor systems.

Key Features & Specifications
  • Type: Thermal Overload Relay, Manual Reset, 3RU11 Series
  • Voltage Rating: Dependent on associated contactor coil voltage
  • Current Rating: 2.2 - 3.2 A (Adjustable)
  • Relay Style: Thermal Bi-Metallic
  • Family: Sirius
  • Weight: 1 lb
  • Standards: IEC/EN 60947-4-1, UL 508, CSA C22.2 No. 14
  • Applications: Motor protection in pumps, fans, compressors, and machinery
  • Functions: Overload protection, phase unbalance protection
  • Mounting: Snap-on to compatible Sirius contactors
  • Aux Contacts: Configurable with auxiliary contact blocks (e.g., 3RU19..)
  • Compatible Frames: SIRIUS 3RT/3RH contactors


Product Identification
  • Manufacturer Part Number: 3RU1116-1DB0