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Allen-Bradley 140U-L3D3-D60 - Molded Case Breaker 600A 600V

Allen-Bradley
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Allen-Bradley 140U-L3D3-D60 is a Bulletin 140U molded case circuit breaker designed for thermal-magnetic protection in industrial power distribution systems. This three-pole device is rated for 600V AC and 600A continuous current, providing long-time and instantaneous (LI) trip functions to safeguard against overloads and short circuits. The unit features a bolt-on connection style, weighs 25 lb, and is constructed for robust panel mounting within standard industrial enclosures. It complies with applicable UL and NEMA standards, with an interrupting capacity of 35kA at 480V AC. Typical applications include main or feeder protection in manufacturing plants, commercial facilities, and heavy machinery where reliable overcurrent protection is critical.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic, 3-Pole
  • Voltage Rating: 600V AC
  • Current Rating: 600A
  • Dimensions: Standard Bulletin 140U frame size
  • Standards: UL 489, NEMA AB-1
  • Applications: Industrial power distribution, feeder protection, motor branch circuits
  • Switch Type: Non-fused, thermal-magnetic trip
  • Configuration: 3-Phase, 3-Wire
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Standard packaging
  • Phase: 3
  • Voltage: 600V AC
  • Amperage: 600A
  • AIC rating: 35kA@480V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: 140U
  • Trip Type: Thermal-magnetic
  • Panel Type: Industrial
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Steel enclosure
  • Panel Style: Standard
  • Bus Type: Not specified
  • 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
  • Hz: 50/60
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 600A
  • Dist Voltage: 600V
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 600A
  • Full Load Amp Minimum: 0A
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 600A
  • Amperage Minimum: 0A
  • Nema Rating: 1
  • Switch Style: Not applicable
  • Wire Size: Not specified
  • Certification: UL
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Bolt-On
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-Phase
  • Standards: UL 489
  • Compatible Frames: Bulletin 140U
  • Installation Type: Panel
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: 140U
  • Current Rating: 600A
  • 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: Not available
  • GTIN: Not available