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Square D QOU3101200 - 3-Pole 100A Miniature Breaker (120/240VAC)

Square D
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The Square D QOU3101200 is a three-pole miniature circuit breaker designed for branch circuit protection in residential and light commercial power distribution panels. This unit is rated for 120/240 VAC at 100 amps, providing overcurrent and short-circuit protection for high-load applications. Constructed with a compact 4.05-inch height, 3-inch width, and 2.95-inch depth, it weighs 1.75 lb and accepts wire sizes from AWG 14 to AWG 2 in aluminum or copper, ensuring versatile installation. Manufactured by Schneider Electric in Mexico, the breaker complies with UL 489 standards for safety and reliability. It is commonly used for protecting lighting, appliance, and motor circuits in load centers and panelboards.

Key Features & Specifications
  • Type: Miniature circuit breaker, thermal-magnetic trip, plug-on mount
  • Voltage Rating: 120/240 VAC
  • Current Rating: 100 A
  • Dimensions: 4.05 in (102.87 mm) x 3 in (76.2 mm) x 2.95 in (74.93 mm) (H x W x D)
  • Standards: UL 489
  • Applications: Branch circuit protection in residential and light commercial panels
  • Switch Type: Toggle
  • Configuration: 3-pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 4.05 in x 3 in x 2.95 in
  • Phase: 1-phase
  • Voltage: 120/240 VAC
  • Amperage: 100 A
  • AIC rating: 10 kAIC at 240 VAC
  • Connection: Plug-on
  • Poles: 3
  • Protection: Overcurrent and short-circuit
  • Functions: Circuit isolation and protection
  • Frame Size: QOU
  • Trip Type: Thermal-magnetic
  • Panel Type: QO load centers
  • Breaker Type: Miniature
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Copper/aluminum wire
  • Panel Style: Plug-on
  • Bus Type: Plug-on
  • Fuse Class: Not applicable
  • Insulation Temperature: 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: Plug-on
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not applicable
  • Aux Contacts: Not applicable
  • CPT: Not applicable
  • Full Load Amps: 100 A
  • Dist Voltage: 120/240 VAC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 100 A
  • Full Load Amp Minimum: 100 A
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: AWG 14 to AWG 2
  • Amperage Maximum: 100 A
  • Amperage Minimum: 100 A
  • Nema Rating: Not applicable
  • Switch Style: Toggle
  • Wire Size: AWG 14 to AWG 2
  • Certification: UL 489
  • Circuit Breaker Mounting Style: Plug-on
  • Terminal Connection: Screw
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 1-phase
  • Standards: UL 489
  • Compatible Frames: QO
  • Installation Type: Plug-on
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: QOU
  • Current Rating: 100 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: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: Not available
  • GTIN: Not available