Square D QO327M100 - 100A 3-Pole Main Breaker (120/240 VAC)
Square D QO327M100 - 100A 3-Pole Main Breaker (120/240 VAC)

Square D QO327M100 - 100A 3-Pole Main Breaker (120/240 VAC)

Square D
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The Square D QO327M100, manufactured by Schneider Electric, is a 100A three-pole main circuit breaker designed for overcurrent protection in QO series load centers. This unit is rated for 120/240 VAC and accommodates wire sizes from AWG 4 to AWG 2/0 in both aluminum and copper, operating within a temperature range of -13 to 158 °F (-25 to 70 °C). It features a robust construction with dimensions of 14.25 in x 29.84 in and a weight of 18.04 lb, supporting a 3-phase configuration. The breaker is UL Listed and RoHS compliant, ensuring adherence to industry safety and environmental standards. This device is typically used in residential and light commercial electrical distribution systems for branch circuit protection.

Key Features & Specifications
  • Type: QO Main Circuit Breaker
  • Voltage Rating: 120/240 VAC
  • Current Rating: 100A
  • Dimensions: 14.25 in x 29.84 in
  • Weight: 18.04 lb
  • Wire Size: AWG 4 to AWG 2/0, Aluminum/Copper
  • Phase: 3
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Certification: RoHS Compliant, UL Listed
  • Poles: 3
  • Breaker Type: Main
  • Circuit Breaker Mounting Style: Plug-on
  • Terminal Connection: Aluminum/Copper rated
  • Frequency Rating: 60 Hz
  • Phase Connection: 3-Phase
  • Standards: UL 489
  • Installation Type: Load Center
  • Item QTY: 1
  • Breaker Frame: QO
  • Family: QO Series
  • Country of Origin: United States
  • Item Subcategory: Load Center
  • Type: QO
  • Wire: 4


Product Identification
  • UPC: 785901295464
  • GTIN: 00785901295464