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Square D QO140M200PRB - Main Breaker Load Center 200A

Square D
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Square D QO140M200PRB is a main breaker load center designed to provide primary overcurrent protection for residential and light commercial electrical systems. It is rated for 120/240 VAC at 200 amperes, with a 22 kA interrupting capacity at 240 VAC, and features a 40-space, 40-circuit configuration housed in a NEMA 1 enclosure measuring 33.8 inches in height, 14.8 inches in width, and 4.5 inches in depth, weighing 39 lb. The unit is constructed with a tin-plated copper bus bar and a combination surface/flush mount design, utilizing a QO plug-on circuit breaker type with a thermal-magnetic trip mechanism. This load center complies with UL 67 and CSA C22.2 No. 29 standards, and is suitable for use in branch circuit protection, feeder distribution, and service entrance applications in commercial and industrial settings.

Key Features & Specifications
  • Type: Main breaker load center, NEMA 1 enclosure, tin-plated copper bus
  • Voltage Rating: 120/240 VAC
  • Current Rating: 200 A
  • Dimensions: 33.8 in (858 mm) x 14.8 in (375 mm) x 4.5 in (115 mm) (H x W x D)
  • Standards: UL 67, CSA C22.2 No. 29
  • Applications: Branch circuit protection, feeder distribution, service entrance
  • Switch Type: Main breaker
  • Configuration: 40-space, 40-circuit
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: 60/75°C
  • Shipping Dimensions: 33.8 in x 14.8 in x 4.5 in
  • Phase: Single-phase
  • Voltage: 120/240 VAC
  • Amperage: 200 A
  • AIC rating: 22 kA at 240 VAC
  • Connection: Plug-on
  • Poles: 2-pole main breaker
  • Protection: Overcurrent
  • Functions: Main disconnect, branch circuit protection
  • Frame Size: QO
  • Trip Type: Thermal-magnetic
  • Panel Type: Load center
  • Breaker Type: QO plug-on
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Tin-plated copper bus
  • Panel Style: Main breaker
  • Bus Type: Tin-plated copper
  • Fuse Class: Not applicable
  • Insulation Temperature: 60/75°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: Combination surface/flush
  • Hz: 60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not applicable
  • Aux Contacts: Not applicable
  • CPT: Not applicable
  • Full Load Amps: Not applicable
  • Dist Voltage: Not applicable
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: Not applicable
  • Full Load Amp Minimum: Not applicable
  • Enclosure: NEMA 1
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not applicable
  • Amperage Maximum: 200 A
  • Amperage Minimum: Not applicable
  • Nema Rating: NEMA 1
  • Switch Style: Main breaker
  • Wire Size: Not applicable
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Plug-on
  • Terminal Connection: Plug-on
  • Frequency Rating: 60 Hz
  • Phase Connection: Single-phase
  • Standards: UL 67, CSA C22.2 No. 29
  • Compatible Frames: QO
  • Installation Type: Surface/flush
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: QO
  • Current Rating: 200 A
  • 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: Not applicable
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 78590161664
  • GTIN: 00785901616641