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Square D HDA36090UO - Molded Case Breaker 90A 600V 3-Pole

Square D
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Square D HDA36090UO is a 3-pole molded case circuit breaker from the Powerpact family, designed to provide overcurrent protection through thermal magnetic operation. It is rated for 90A continuous current at 600VAC, with an interrupting capacity of 18kA at 480VAC in a 3-phase system. The unit features an I-Line style plug-in connection, weighs 6 lb, and offers LI (Long-Time and Instantaneous) trip functions for coordinated protection. This breaker complies with industry standards for industrial power distribution and is suitable for use in panelboards, switchboards, and motor control centers. Typical applications include manufacturing facilities, commercial buildings, and heavy machinery protection where reliable circuit interruption is required.

Key Features & Specifications
  • Type: Molded Case, Powerpact HDA, Thermal Magnetic
  • Voltage Rating: 600V AC
  • Current Rating: 90A
  • Dimensions: Standard molded case frame
  • Standards: UL, CSA, NEMA
  • Applications: Industrial power distribution, panelboards, motor control centers
  • Switch Type: Circuit breaker
  • Configuration: 3-pole
  • Coil Voltage Maximum: Not applicable (thermal magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Standard packaging
  • Phase: 3
  • Voltage: 600V
  • Amperage: 90A
  • AIC rating: 18kA@480V
  • Connection: I-Line Style Plug-In
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: HDA
  • Trip Type: Thermal Magnetic
  • Panel Type: I-Line compatible
  • Breaker Type: Molded Case
  • Control Voltage Minimum: N/A
  • Control Voltage Maximum: N/A
  • MCM Size: N/A
  • Metal Type: Copper/steel
  • Panel Style: I-Line
  • Bus Type: I-Line
  • 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: Plug-in
  • Hz: 50/60
  • Coil Material: N/A
  • Horse Power: N/A
  • Aux Contacts: Optional
  • CPT: N/A
  • Full Load Amps: 90A
  • Dist Voltage: 600V
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: 90A
  • Full Load Amp Minimum: 90A
  • Enclosure: Open
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: N/A
  • Amperage Maximum: 90A
  • Amperage Minimum: 90A
  • Nema Rating: N/A
  • Switch Style: N/A
  • Wire Size: N/A
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Plug-in
  • Terminal Connection: I-Line
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: Powerpact HDA
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: HDA
  • Current Rating: 90A
  • 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: Not available
  • GTIN: Not available