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Square D QOM40L - 40A 2-Pole Miniature Circuit Breaker (120/240V)

Square D
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Square D QOM40L is a 40 Amp 2-pole miniature circuit breaker from the QO Series, designed to provide reliable overcurrent protection for branch circuits in residential and commercial power distribution systems. It operates at a voltage rating of 120/240 VAC with a 10 kA interrupt rating, and features both long time and instantaneous trip functions for thermal magnetic protection. The unit weighs 1.28 lb, supports wire sizes from AWG 12 to AWG 2/0 in copper or aluminum, and is rated for an ambient temperature range of -13°F to 158°F (-25°C to 70°C). It is UL Listed and uses a bolt-on mounting type for secure installation in compatible load centers. This breaker is commonly applied in lighting, appliance, and general-purpose circuits within industrial and commercial facilities.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Item Subcategory: Miniature
  • Amperage: 40 Amps
  • Number of Poles: 2
  • Voltage Rating: 120/240 VAC
  • Interrupt Rating: 10 kA
  • Functions: Long Time and Instantaneous Trip
  • Trip Unit: Thermal Magnetic
  • Mounting Type: Bolt-On
  • Series/Frame: QO
  • Wire Size: AWG 12 to AWG 2/0, Copper/Aluminum
  • Temp Rating: -13°F to 158°F (-25°C to 70°C)
  • Weight: 1.28 lb
  • Certifications: UL Listed


Product Identification
  • UPC: 785901114857
  • GTIN: 00785901000000