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Square D QOM2100MVH - Molded Case 100A Main Breaker (22kA AIC)

Square D
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Square D QOM2100MVH is a molded case circuit breaker designed for main circuit protection in single-phase electrical systems. It provides a 100A current rating and 240V voltage rating with thermal-magnetic protection featuring long-time and instantaneous trip functions for reliable overload and short-circuit interruption. The breaker features a compact bolt-on design measuring 142 mm x 129 mm x 91 mm (HxWxD) and weighs 2.67 lb, with lug terminals accepting copper or aluminum conductors from 4 AWG to 300 kcmil. It is UL Listed and CSA certified for compliance with industry standards and operates reliably across a temperature range of -25 to 70 °C. This main breaker is engineered for integration into QO load centers, offering a 22kA interrupting capacity at 240V for robust residential and light commercial applications.

Key Features & Specifications
  • Type: Molded Case, Main Breaker, Thermal Magnetic Protection
  • Voltage Rating: 240V AC
  • Current Rating: 100A
  • Dimensions: 142 mm H x 129 mm W x 91 mm D (5.6 in x 5.08 in x 3.6 in)
  • Standards: UL Listed, CSA
  • Applications: Main circuit protection for QO load centers in residential/light commercial
  • Switch Type: Circuit Breaker
  • Configuration: Bolt-On
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Phase: 1
  • AIC Rating: 22kA @ 240V
  • Connection: Lug Terminal
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: Long Time, Instantaneous
  • Breaker Type: Main Breaker
  • Panel Type: QO Load Center
  • Wire Size: 4 AWG to 300 kcmil (Copper or Aluminum)
  • Certification: UL Listed, CSA
  • MCM Size: 4 AWG min, 300 kcmil max
  • Weight: 2.67 lb


Product Identification
  • UPC: 785901301509
  • GTIN: 00785901301509