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Siemens 3RU1116-1BB0 - Thermal Overload Relay (1.4-2A)

Siemens
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Siemens 3RU1116-1BB0 is a thermal overload relay designed to provide reliable motor protection by monitoring current and tripping to prevent damage from overloads. It operates with a voltage rating of up to 690V AC and features an adjustable current setting range from 1.4 to 2 amps, housed within a compact and robust construction for industrial durability. This device complies with relevant international standards for motor control and safety, ensuring integration into automated systems. It is typically applied in controlling and protecting small three-phase AC motors within machinery, pumps, and conveyor systems.

Key Features & Specifications
  • Type: Thermal overload relay, manual reset, screw terminal connection
  • Voltage Rating: 690V AC
  • Current Rating: Adjustable, 1.4 - 2 A
  • Relay Style: Thermal
  • Item Subcategory: Overload Relay
  • Weight: 10 lb
  • Standards: IEC/EN 60947-4-1, UL 508
  • Applications: Protection of three-phase AC motors in industrial machinery, pumps, fans, and conveyors
  • Configuration: 3-pole
  • Mounting: Snap-on to contactor, DIN rail
  • Protection: Phase loss sensitivity
  • Functions: Overload protection, manual reset
  • Enclosure: Open style
  • Operating Temperature: -25°C to +60°C
  • Frequency Rating: 50/60 Hz
  • Terminal Connection: Screw clamp
  • Certification: cULus Listed


Product Identification
  • Manufacturer Part Number: 3RU1116-1BB0
  • Manufacturer: Siemens