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Eaton Cutler Hammer C321KM60K13B - 60A 3-Pole MCCB

Cutler Hammer
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Eaton Cutler Hammer C321KM60K13B is a 3-pole, 600V AC circuit breaker designed for overcurrent protection in industrial power distribution systems. It is rated for 60A continuous current with a 65kAIC at 480V AC interrupting capacity, housed in a compact 5.9 in x 3.7 in x 4 in (Length/Depth x Height x Width) molded case frame weighing 0.3 lb. The breaker features a thermal-magnetic trip mechanism for precise overload and short-circuit protection, with a 50/60 Hz frequency rating and a 40°C maximum ambient temperature rating. It complies with UL 489 and CSA C22.2 No. 5 standards for industrial safety, and is suitable for use in panelboards, switchboards, and motor control centers. Typical applications include branch circuit protection in manufacturing plants, commercial buildings, and heavy machinery.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip, 3-pole
  • Voltage Rating: 600V AC
  • Current Rating: 60A
  • Dimensions: 5.9 in x 3.7 in x 4 in (Length/Depth x Height x Width)
  • Standards: UL 489, CSA C22.2 No. 5
  • Applications: Industrial power distribution, branch circuit protection
  • Switch Type: Circuit breaker
  • Configuration: 3-pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C maximum ambient
  • Shipping Dimensions: 5.9 in x 3.7 in x 4 in
  • Phase: 3-phase
  • Voltage: 600V AC
  • Amperage: 60A
  • AIC rating: 65kAIC at 480V AC
  • Connection: Line and load side lugs
  • Poles: 3
  • Protection: Overload and short-circuit
  • Functions: Overcurrent protection
  • Frame Size: C-frame
  • Trip Type: Thermal-magnetic
  • Panel Type: Suitable for panelboards and switchboards
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Molded case (thermoplastic)
  • Panel Style: Standard
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: 75°C rated
  • 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: 60A
  • Dist Voltage: 600V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 60A
  • Full Load Amp Minimum: 0A
  • Enclosure: Open (no enclosure)
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 60A
  • Amperage Minimum: 0A
  • Nema Rating: Not applicable
  • Switch Style: Circuit breaker
  • Wire Size: Not specified
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Panel mount
  • Terminal Connection: Line and load lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA C22.2 No. 5
  • Compatible Frames: C-frame
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: C-frame
  • Current Rating: 60A
  • 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: 078211383629
  • GTIN: 00782113836294