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Eaton C799B21 - 100A 3-Pole 600V AC Circuit Breaker

Cutler Hammer
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Eaton C799B21 is a heavy-duty industrial circuit breaker designed for overcurrent protection in commercial and industrial power distribution systems. It is rated for 600V AC and carries a current rating of 100A, ensuring reliable performance in high-demand environments. The unit measures 14.8 inches in depth, 9.6 inches in height, and 11.7 inches in width, with a weight of 14.45 lb, featuring robust construction for panel-mount installation. This breaker complies with UL 489 and CSA standards, guaranteeing safety and performance in accordance with industry regulations. Typical applications include motor control centers, switchboards, and main distribution panels in manufacturing plants and commercial facilities.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip, insulated case
  • Voltage Rating: 600V AC
  • Current Rating: 100A
  • Dimensions: 14.8 in x 9.6 in x 11.7 in (Length/Depth x Height x Width)
  • Standards: UL 489, CSA C22.2 No. 5
  • Applications: Motor control centers, switchboards, main distribution panels
  • Switch Type: Toggle
  • Configuration: 3-pole
  • Coil Voltage Maximum: Not specified
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 14.8 in x 9.6 in x 11.7 in
  • Phase: 3-phase
  • Voltage: 600V AC
  • Amperage: 100A
  • AIC rating: 25 kA at 600V AC
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overcurrent and short-circuit
  • Functions: Circuit isolation and protection
  • Frame Size: 100A frame
  • Trip Type: Thermal-magnetic
  • Panel Type: Panel-mount
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Steel enclosure
  • Panel Style: Fixed
  • Bus Type: Copper
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Panel-mount
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 100A
  • Dist Voltage: 600V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 100A
  • Full Load Amp Minimum: 0A
  • Enclosure: Open style
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper or aluminum
  • Amperage Maximum: 100A
  • Amperage Minimum: 0A
  • Nema Rating: 1
  • Switch Style: Toggle
  • Wire Size: 14 AWG to 1/0 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Panel-mount
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA C22.2 No. 5
  • Compatible Frames: 100A frame
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: 100A
  • Current Rating: 100A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not specified
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 78211411463
  • GTIN: 00782114114636