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Eaton BKHFD125 - 125A Circuit Breaker 600VAC 125VDC

Cutler Hammer
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Eaton BKHFD125 - 125A Circuit Breaker 600VAC 125VDC The Cutler Hammer BKHFD125 is a 125-amp molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. This unit operates at a maximum voltage rating of 600VAC and 125VDC, with a current rating of 125 amps and an AIC rating of 65kA at 240VAC. The breaker measures 3.9 inches in depth, 6 inches in height, and 4.13 inches in width, weighing 5 pounds, and features a compact, high-density construction with a thermal-magnetic trip mechanism. It complies with UL 489 and CSA C22.2 standards, ensuring reliable performance in demanding environments. Typical applications include motor control centers, panelboards, and switchboards in manufacturing, commercial, and utility settings.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip
  • Voltage Rating: 600VAC / 125VDC
  • Current Rating: 125A
  • Dimensions: 3.9 in x 6 in x 4.13 in (Length/Depth x Height x Width)
  • Standards: UL 489, CSA C22.2
  • Applications: Industrial power distribution, motor control centers, panelboards
  • Switch Type: Toggle
  • Configuration: Fixed mount
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 3.9 in x 6 in x 4.13 in
  • Phase: 1 or 3
  • Voltage: 600VAC / 125VDC
  • Amperage: 125A
  • AIC rating: 65kA at 240VAC
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overcurrent and short circuit
  • Functions: Circuit isolation and protection
  • Frame Size: FD
  • Trip Type: Thermal-magnetic
  • Panel Type: Industrial
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: 250 MCM
  • Metal Type: Copper alloy
  • 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: 1.5 in
  • Clas: Not applicable
  • Mounting: Panel mount
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: 100 HP at 480VAC
  • Aux Contacts: 1 NO/NC optional
  • CPT: Not included
  • Full Load Amps: 125A
  • Dist Voltage: 600VAC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 125A
  • Full Load Amp Minimum: 125A
  • Enclosure: Open style
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper or aluminum
  • Amperage Maximum: 125A
  • Amperage Minimum: 125A
  • Nema Rating: 1
  • Switch Style: Toggle
  • Wire Size: 14 AWG to 250 MCM
  • Certification: UL listed, CSA certified
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: FD series
  • Installation Type: Panelboard or switchboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: FD
  • Current Rating: 125A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not applicable
  • 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: 78668903077
  • GTIN: 00786689030773