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Square D QOB2100H - Molded Case Circuit Breaker 100A 2-Pole

Square D
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The Square D QOB2100H is a 2-pole, 100A molded case circuit breaker from the QOB Series, designed to provide overcurrent protection for branch circuits in residential and commercial load centers. It operates at 120/240VAC with a 10kA interrupting capacity at 240V, utilizing a thermal-magnetic trip mechanism for long-time and instantaneous fault response. This bolt-on breaker measures 3.5 in (89 mm) x 1.5 in (38 mm) x 2.9 in (74 mm) and weighs 0.71 lb, featuring pressure plate terminals that accept copper or aluminum wire from AWG 14 to AWG 2/0. It is UL Listed and CSA certified, compliant with industry safety standards for single-phase applications. The QOB2100H is typically used in Square D QOB panelboards for lighting, appliance, and motor branch circuit protection in industrial and commercial facilities.

Key Features & Specifications
  • Type: QOB Molded Case Circuit Breaker, Thermal-Magnetic
  • Voltage Rating: 120/240VAC
  • Current Rating: 100A
  • Dimensions: 3.5 in (89 mm) x 1.5 in (38 mm) x 2.9 in (74 mm) (Height x Width x Depth)
  • Standards: CSA, UL Listed
  • Applications: Branch circuit protection in QOB panelboards for lighting, appliances, and motors
  • Switch Type: Toggle
  • Configuration: 2-Pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: -13 to 158 °F (-25 to 70 °C)
  • Shipping Dimensions: Not specified
  • Phase: 1
  • Voltage: 120/240VAC
  • Amperage: 100A
  • AIC rating: 10kA@240V
  • Connection: Bolt-On
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous Trip
  • Frame Size: QOB
  • Trip Type: Thermal-Magnetic
  • Panel Type: QOB
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Not specified
  • Panel Style: QOB
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: Not specified
  • 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: Bolt-On
  • Hz: 60 Hz (typical for 120/240VAC)
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: Not specified
  • Dist Voltage: Not applicable
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: Not specified
  • Full Load Amp Minimum: Not specified
  • Enclosure: Not applicable (breaker only)
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper/Aluminum
  • Amperage Maximum: 100A
  • Amperage Minimum: Not applicable
  • Nema Rating: Not specified
  • Switch Style: Toggle
  • Wire Size: AWG 14 to AWG 2/0
  • Certification: UL Listed
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Pressure Plate
  • Frequency Rating: 60 Hz
  • Phase Connection: Single-phase
  • Standards: CSA, UL Listed
  • Compatible Frames: QOB
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: QOB
  • Current Rating: 100A
  • 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: 70 °C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 785901326496
  • GTIN: 00785901000000