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Cutler Hammer C321MP7 - 200A 3-Pole Molded Case Circuit Breaker (600V AC)

Cutler Hammer
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Cutler Hammer C321MP7 is a 3-pole, 200-amp molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It operates at 600V AC maximum with a 25kAIC at 480V AC, featuring a thermal-magnetic trip mechanism for precise coordination. The unit measures 9.2 inches in depth, 0.5 inches in height, and 7 inches in width, weighing 0.75 lb, with a compact construction suitable for panelboard mounting. It complies with UL 489 and CSA C22.2 standards, ensuring reliable performance in demanding environments. Typical applications include motor control centers, switchboards, and commercial building electrical panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, thermal-magnetic trip, 3-pole
  • Voltage Rating: 600V AC
  • Current Rating: 200A
  • Dimensions: 9.2 in x 0.5 in x 7 in (Length/Depth x Height x Width)
  • Standards: UL 489, CSA C22.2
  • Applications: Industrial power distribution, motor control centers, switchboards
  • Switch Type: Toggle
  • Configuration: 3-pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 9.2 in x 0.5 in x 7 in
  • Phase: 3-phase
  • Voltage: 600V AC
  • Amperage: 200A
  • AIC rating: 25kAIC at 480V AC
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overcurrent and short circuit
  • Functions: Thermal-magnetic trip
  • Frame Size: 200A frame
  • Trip Type: Thermal-magnetic
  • Panel Type: Panelboard
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Copper alloy contacts
  • Panel Style: Standard
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not applicable
  • Impedance: Not specified
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not specified
  • Mounting: Panelboard
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 200A
  • Dist Voltage: 600V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 200A
  • Full Load Amp Minimum: 200A
  • Enclosure: Open type
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 200A
  • Amperage Minimum: 200A
  • Nema Rating: Not specified
  • Switch Style: Toggle
  • Wire Size: Not specified
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Panelboard
  • Terminal Connection: Lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: 200A frame
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: 200A
  • Current Rating: 200A
  • 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: 078211350050
  • GTIN: 00782113500508