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Square D QBL32125 - Molded Case Circuit Breaker 125A 3P 240V

Square D
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Square D QBL32125 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 125A current rating and a 240V AC voltage rating, housed within a compact 250A frame with dimensions of 164.34 mm H x 114.3 mm W x 99.82 mm D and a weight of 4.751 lb. The breaker is constructed for robust performance, meeting UL, CSA, NEMA, and NOM standards, and is engineered for typical applications in panelboards and switchboards requiring a 10kA interrupting capacity at 240V.

Key Features & Specifications
  • Type: QBL Standard Molded Case Circuit Breaker with Thermal-Magnetic (LI) protection
  • Voltage Rating: 240V AC
  • Current Rating: 125A
  • Frame Size: 250A/QB
  • Poles: 3
  • AIC Rating: 10kA @ 240V
  • Connection: Feed-Thru with Line/Load Lug terminals
  • Phase Connection: ABC
  • MCM/Wire Size: Minimum 4 AWG, Maximum 300 MCM
  • Dimensions: 6.47 in (164.34 mm) H x 4.5 in (114.3 mm) W x 3.93 in (99.82 mm) D
  • Weight: 4.751 lb
  • Operating Temperature: -13 to 158 °F (-25 to 70 °C)
  • Standards & Certification: UL, CSA, NEMA, NOM-003-SCFI-2000
  • Breaker Type: Standard
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)


Product Identification
  • UPC: 78590141781
  • GTIN: 00785901417811