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Square D QOH380X - 80A 3-Pole Circuit Breaker 480V AC

Square D
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Square D QOH380X is a high-capacity industrial circuit breaker designed for overcurrent protection in commercial and industrial power distribution systems. This three-pole breaker is rated for 480V AC and 80A, with a 65kA interrupting capacity at 480V AC, ensuring robust fault current handling. Constructed with a compact frame size and bolt-on mounting style, it features a thermal-magnetic trip mechanism for reliable short-circuit and overload protection. The breaker complies with UL 489 and CSA standards, making it suitable for use in panelboards and switchboards. Typical applications include motor control centers, lighting panels, and feeder circuits in manufacturing facilities and data centers.

Key Features & Specifications
  • Type: Industrial molded case circuit breaker, thermal-magnetic trip, bolt-on mounting
  • Voltage Rating: 480V AC
  • Current Rating: 80A
  • Dimensions: 3.0 x 2.5 x 4.0 inches
  • Standards: UL 489, CSA C22.2 No. 5
  • Applications: Commercial and industrial power distribution, motor control centers, panelboards
  • Switch Type: Toggle
  • Configuration: Three-pole
  • Coil Voltage Maximum: 480V AC
  • Temp Rating: 40°C
  • Shipping Dimensions: 4.0 x 3.0 x 5.0 inches
  • Phase: Three-phase
  • Voltage: 480V AC
  • Amperage: 80A
  • AIC rating: 65kA at 480V AC
  • Connection: Bolt-on
  • Poles: 3
  • Protection: Overcurrent, short-circuit
  • Functions: Circuit protection
  • Frame Size: QO
  • Trip Type: Thermal-magnetic
  • Panel Type: QO load centers
  • Breaker Type: QOH
  • Control Voltage Minimum: 120V AC
  • Control Voltage Maximum: 480V AC
  • MCM Size: Not applicable
  • Metal Type: Steel
  • Panel Style: Flush or surface mount
  • 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: Not applicable
  • Clas: Not applicable
  • Mounting: Bolt-on
  • Hz: 50/60 Hz
  • Coil Material: Copper
  • Horse Power: 40 HP at 480V AC
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 80A
  • Dist Voltage: 480V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 80A
  • Full Load Amp Minimum: 0A
  • Enclosure: Open style
  • Relay Style: Not applicable
  • Coil Voltage Minimum: 120V AC
  • Wire: Copper or aluminum
  • Amperage Maximum: 80A
  • Amperage Minimum: 0A
  • Nema Rating: 1
  • Switch Style: Toggle
  • Wire Size: 14 AWG to 2 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Bolt-on
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Three-phase
  • Standards: UL 489, CSA C22.2 No. 5
  • Compatible Frames: QO
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: QO
  • Current Rating: 80A
  • 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: 785901123456
  • GTIN: 00785901123456