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Eaton HFD4090 - Molded Case Circuit Breaker 90A 600V

Cutler Hammer
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The Eaton Cutler-Hammer HFD4090 is a 4-pole molded case circuit breaker from the Series C family, designed for thermal-magnetic protection with LI (Long-Time and Instantaneous) trip functions. It is rated for 90A at 600V AC, 3-phase, with a high interrupting capacity of 65kA at 480V AC. This bolt-on F Frame breaker weighs 7 lb and features a compact, industrial-grade construction for reliable overcurrent protection. It complies with applicable UL and NEMA standards for industrial electrical distribution systems. Typical applications include motor control centers, panelboards, and switchboards in manufacturing plants, commercial buildings, and heavy industrial environments.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic
  • Voltage Rating: 600V AC
  • Current Rating: 90A
  • Dimensions: F Frame (standard molded case dimensions)
  • Standards: UL, NEMA
  • Applications: Industrial electrical distribution, motor control centers, panelboards
  • Switch Type: Circuit Breaker
  • Configuration: 4-Pole, 3-Phase
  • Coil Voltage Maximum: Not applicable (thermal magnetic)
  • Temp Rating: Standard 40°C ambient
  • Shipping Dimensions: Standard F Frame packaging
  • Phase: 3
  • Voltage: 600V AC
  • Amperage: 90A
  • AIC rating: 65kA@480V
  • Connection: Bolt-On
  • Poles: 4
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: F Frame
  • Trip Type: Thermal Magnetic
  • Panel Type: Industrial panelboards
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Standard steel/plastic
  • Panel Style: Bolt-on
  • Bus Type: Standard
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C (typical)
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Bolt-On
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 90A
  • Dist Voltage: 600V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 90A
  • Full Load Amp Minimum: 90A
  • Enclosure: Open (no enclosure)
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not applicable
  • Amperage Maximum: 90A
  • Amperage Minimum: 90A
  • Nema Rating: Standard
  • Switch Style: Circuit Breaker
  • Wire Size: Not specified
  • Certification: UL Listed
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Bolt-On
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-Phase
  • Standards: UL 489, NEMA AB-1
  • Compatible Frames: F Frame
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: F Frame
  • Current Rating: 90A
  • 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: Not available
  • GTIN: Not available