Square D QOM22225NRB - Molded Case Breaker 225A 240V (2-Pole)
Square D QOM22225NRB - Molded Case Breaker 225A 240V (2-Pole)

Square D QOM22225NRB - Molded Case Breaker 225A 240V (2-Pole)

Square D
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Square D QOM22225NRB is a molded case circuit breaker designed for primary overcurrent and short-circuit protection in electrical distribution systems. This unit operates at 240V AC with a 225A current rating, housed in a compact 24.8 in (629 mm) x 8.5 in (217 mm) x 4.2 in (106 mm) enclosure weighing 14.341 lb. Constructed with a durable thermoplastic case and copper alloy conductors, it features a thermal-magnetic trip mechanism for reliable fault interruption. The breaker complies with UL 489 and CSA C22.2 standards, ensuring safe operation in industrial environments. It is typically used for feeder protection in panelboards, switchboards, and motor control centers.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip
  • Voltage Rating: 240V AC
  • Current Rating: 225A
  • Dimensions: 24.8 in (629 mm) x 8.5 in (217 mm) x 4.2 in (106 mm) (Height x Width x Depth)
  • Standards: UL 489, CSA C22.2
  • Applications: Feeder protection in panelboards, switchboards, motor control centers
  • Switch Type: Thermal-magnetic
  • Configuration: 2-pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 24.8 in x 8.5 in x 4.2 in
  • Phase: Single-phase
  • Voltage: 240V AC
  • Amperage: 225A
  • AIC rating: 10kA at 240V AC
  • Connection: Line and load lugs
  • Poles: 2
  • Protection: Overcurrent and short-circuit
  • Functions: Circuit isolation and fault interruption
  • Frame Size: QOM2
  • Trip Type: Thermal-magnetic
  • Panel Type: Not applicable
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: 250 kcmil
  • Metal Type: Copper alloy
  • Panel Style: Not applicable
  • Bus Type: Not applicable
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • 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: Panel mount
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not applicable
  • Aux Contacts: Not applicable
  • CPT: Not applicable
  • Full Load Amps: 225A
  • Dist Voltage: 240V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 225A
  • Full Load Amp Minimum: 0A
  • Enclosure: Open style
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper or aluminum
  • Amperage Maximum: 225A
  • Amperage Minimum: 0A
  • Nema Rating: Not applicable
  • Switch Style: Toggle
  • Wire Size: 14 AWG to 250 kcmil
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Bolt-on
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: QOM2
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: QOM2
  • Current Rating: 225A
  • 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: 785901328872
  • GTIN: 00785901328872