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Square D Q1245 - Molded Case 45A 2-Pole 240V

Square D
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Square D Q1245 is a molded case circuit breaker from the Q1 Series, designed for branch circuit protection in commercial and industrial power distribution systems. This 2-pole, 45A breaker operates at 240V with a 10kA interrupting capacity at 240V, utilizing thermal magnetic protection with LI (Long-Time and Instantaneous) trip functions. The unit features a compact molded case construction with a plug-in connection type, weighing 2 lb for straightforward installation in compatible panels. It is UL Listed, meeting industry standards for reliable overcurrent protection. Typical applications include branch circuit protection in lighting, appliance, and motor control panels within commercial and industrial environments.

Key Features & Specifications
  • Type: Q1
  • Manufacturer: Square D
  • Item Subcategory: Molded Case
  • Family: Q1 Series
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 240V
  • Poles: 2
  • Connection: Plug-In
  • Protection: Thermal Magnetic
  • AIC rating: 10kA@240V
  • Phase: 1
  • Current Rating: 45A
  • Weight: 2 lb
  • Mounting Type: Molded Case
  • Interrupt Rating: 65k AIR (fully rated)
  • Application: Branch Circuit Protection
  • Standards: UL Listed


Part Number: Q1245