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C3 Controls 320-B2D28 - Thermal Overload Relay, 28A

C3 Controls
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C3 Controls 320-B2D28 is a thermal overload relay designed to provide reliable motor protection by monitoring current and tripping to prevent damage from overloads or phase loss. It is rated for a maximum coil voltage of 600V AC and a current range suitable for standard industrial motor loads, housed in a compact, durable construction with a weight of 5 lb for robust panel integration. This device complies with relevant industry standards for safety and performance, ensuring dependable operation in demanding environments. Typical applications include protecting pumps, fans, conveyors, and other three-phase AC motor-driven machinery across various industrial sectors.

Key Features & Specifications
  • Type: Thermal Overload Relay, Manual Reset
  • Voltage Rating: 600V AC Maximum
  • Current Rating: 28 A Full Load Amps
  • Dimensions: Compact Design
  • Standards: cULus Listed, IEC Compliant
  • Applications: Pumps, Fans, Conveyors, Compressors
  • Configuration: 3-Pole
  • Coil Voltage Maximum: 600V AC
  • Temp Rating: Standard Industrial
  • Phase: 3-Phase
  • Amperage: 28 A
  • Protection: Overload, Phase Loss
  • Functions: Trip Indication, Test Button
  • Mounting: DIN Rail or Screw
  • Hz: 50/60 Hz
  • Horse Power: Compatible with corresponding motor HP ratings
  • Aux Contacts: Optional kit available
  • Full Load Amps: 28 A
  • Enclosure: Open Style
  • Nema Rating: Industrial
  • Certification: cULus
  • Standards: UL 508, IEC 60947-4-1
  • Compatible Frames: Designed for use with C3 Controls contactors
  • Installation Type: Panel Mount
  • Item QTY: 1
  • Nema Starter Size: 2
  • Operating Temperature Maximum Celsius: 60°C
  • Weight: 5 lb


Product Identification
  • Manufacturer Part Number: 320-B2D28
  • Manufacturer: C3 Controls
  • Item Subcategory: Overload Relay