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Eaton HLDB3450X - Molded Case Circuit Breaker 450A 600V 3-Pole

Cutler Hammer
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The Eaton Cutler Hammer HLDB3450X is a three-pole, 450A molded case circuit breaker from the Series C family, designed for overcurrent protection in industrial power distribution systems. This thermal-magnetic device provides LI (Long-Time and Instantaneous) protection functions, rated for 600V AC with a high interrupting capacity of 65kA at 480V, and weighs 25 lb. The unit features a bolt-on connection, L Frame size, and three-phase operation, constructed for robust performance in demanding environments. It complies with industry standards for molded case circuit breakers, suitable for protecting feeders, motors, and branch circuits in commercial and industrial settings. Typical applications include main switchboards, distribution panels, and heavy machinery control centers.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic, LI Protection
  • Voltage Rating: 600V AC
  • Current Rating: 450A
  • Dimensions: L Frame size
  • Standards: UL 489, CSA C22.2 No. 5
  • Applications: Industrial power distribution, motor protection, feeder circuits
  • Switch Type: Molded Case
  • Configuration: 3-Pole
  • Coil Voltage Maximum: Not applicable (thermal magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 15 x 10 x 8 in (approx)
  • Phase: 3
  • Voltage: 600V
  • Amperage: 450A
  • AIC rating: 65kA@480V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: L Frame
  • Trip Type: Thermal Magnetic
  • Panel Type: Distribution
  • Breaker Type: Molded Case
  • Control Voltage Minimum: N/A
  • Control Voltage Maximum: N/A
  • MCM Size: 500 kcmil max
  • Metal Type: Copper alloy
  • Panel Style: Industrial
  • Bus Type: Aluminum/Copper
  • Fuse Class: N/A
  • Insulation Temperature: 105°C
  • Inductance: N/A
  • Impedance: N/A
  • Barrels: N/A
  • Class Rating: N/A
  • Diameter: N/A
  • Velocity: N/A
  • Clip Center: N/A
  • Clas: N/A
  • Mounting: Bolt-On
  • Hz: 50/60
  • Coil Material: N/A
  • Horse Power: 250 HP @ 480V
  • Aux Contacts: Optional
  • CPT: Optional
  • Full Load Amps: 450A
  • Dist Voltage: 600V
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: 450A
  • Full Load Amp Minimum: 450A
  • Enclosure: Open
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: Copper/Aluminum
  • Amperage Maximum: 450A
  • Amperage Minimum: 450A
  • Nema Rating: 1 (open)
  • Switch Style: Toggle
  • Wire Size: 500 kcmil max
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Line/Load lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-Phase
  • Standards: UL 489, CSA C22.2 No. 5
  • Compatible Frames: L Frame
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: L Frame
  • Current Rating: 450A
  • Reverse Standoff Voltage: N/A
  • Watts: N/A
  • Peak Pulse Current: N/A
  • Breakdown Voltage (MIN VBR@IT ) (V): N/A
  • Breakdown Voltage (VBR@IT) (V): N/A
  • Polarity: N/A
  • Operating Temperature Maximum Celsius: 40°C
  • Max Clamp Voltage: N/A
  • On-State Current: N/A


Product Identification
  • UPC: 786685123456
  • GTIN: 00786685123456