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Square D QOB250 - Molded Case Circuit Breaker 50A 2-Pole

Square D
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Square D QOB250 is a molded case circuit breaker designed for providing reliable overcurrent protection in commercial and industrial electrical systems. It features a 50A current rating and a voltage rating of 120/240V AC for single-phase applications. The breaker is constructed with a compact bolt-on connection, thermal-magnetic protection for both long-time and instantaneous trip functions (LI), and a pressure plate terminal suitable for copper or aluminum wire sizes from 8 AWG to 2 AWG. It complies with CSA and UL standards and is rated for an interrupting capacity of 10kA at 120V. This unit is typically applied in Square D NQOD panelboards for branch circuit protection in a wide operating temperature range from -25°C to 70°C.

Key Features & Specifications
  • Type: Molded Case, Standard, Thermal Magnetic Protection
  • Voltage Rating: 120/240V AC
  • Current Rating: 50A
  • Dimensions: 3.1 in H x 1.5 in W x 2.9 in D (79 mm x 38 mm x 74 mm)
  • Weight: 0.25 lb
  • Standards: CSA, UL Listed
  • Applications: Square D NQOD Panelboards, Commercial/Industrial Branch Circuits
  • Switch Type: Circuit Breaker
  • Configuration: Bolt-On
  • Temp Rating: -25°C to 70°C
  • Phase: 1
  • AIC Rating: 10kA @ 120V
  • Connection: Bolt-On
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous Trip)
  • Frame Size: 100A/QO
  • Panel Type: Square D NQOD Panelboards
  • Breaker Type: Standard
  • MCM Size: Min. 8 AWG, Max. 2 AWG
  • Terminal Connection: Pressure Plate
  • Wire Size: AWG 8 to AWG 2, Copper or Aluminum
  • Certification: UL Listed
  • Manufacturer: Schneider Electric
  • Family: QOB Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901416982
  • GTIN: 00785901416982