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Square D QOB3255237 - Molded Case 25A 3-Pole Breaker

Square D
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The Square D QOB3255237 is a three-pole molded case circuit breaker from the QOB Series, designed to provide thermal-magnetic overcurrent protection for branch circuits. This standard breaker is rated for 25A at 120/240VAC with a 10kA interrupting capacity at 120V, utilizing a bolt-on connection and pressure plate terminals that accept wire sizes from 14 AWG to 8 AWG (Cu/Al). The unit measures 3.0 in (76 mm) in height, 2.2 in (57 mm) in width, and 2.9 in (74 mm) in depth, weighing 0.83 lb, and features LI (Long-Time and Instantaneous) trip functions for precise protection. It is UL Listed and CSA certified, ensuring compliance with North American electrical standards. This breaker is commonly used in industrial and commercial power distribution panels for three-phase applications requiring reliable overcurrent protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Standard, Thermal Magnetic
  • Voltage Rating: 120/240VAC
  • Current Rating: 25A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 10kA@120V
  • Connection: Bolt-On
  • Terminal Connection: Pressure Plate
  • Wire Size: Min. 14 AWG (Cu/Al), Max. 8 AWG (Cu/Al)
  • Functions: LI - Long-Time and Instantaneous
  • Dimensions: 3.0 in (76 mm) x 2.2 in (57 mm) x 2.9 in (74 mm) (Height x Width x Depth)
  • Weight: 0.83 lb
  • Standards: CSA, UL Listed
  • Certification: UL Listed
  • Family: QOB Series
  • Country of Origin: Mexico
  • Breaker Type: Standard


Product Identification
  • UPC: 785901116363
  • GTIN: 00785901116363