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Square D QO320VH - 3-Pole 20A Circuit Breaker (240V, 22kA)

Square D
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Square D QO320VH is a three-pole molded case circuit breaker designed to provide reliable overcurrent and short-circuit protection for three-phase 240V AC electrical systems. It features a 20A current rating and a 22kA interrupting capacity at 240V, utilizing a thermal-magnetic trip mechanism for both long-time delay and instantaneous response to fault conditions. The compact plug-in unit measures 76 mm x 57 mm x 74 mm (HxWxD), is constructed for a wide operating temperature range of -25°C to 70°C, and accepts copper or aluminum conductors from AWG 14 to AWG 8. UL-listed for safety compliance, this breaker is engineered for integration into industrial panels, commercial distribution equipment, and other applications requiring robust circuit protection.

Key Features & Specifications
  • Type: Three-pole, molded case, thermal-magnetic circuit breaker with plug-in connection
  • Voltage Rating: 240V AC
  • Current Rating: 20A
  • Dimensions: 3.0 in (76 mm) H x 2.2 in (57 mm) W x 2.9 in (74 mm) D
  • Standards: UL Listed
  • Applications: Industrial control panels, commercial electrical distribution, three-phase equipment protection
  • Switch Type: Thermal-Magnetic
  • Configuration: Plug-In
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Phase: 3
  • AIC rating: 22kA @ 240V
  • Connection: Plug-In
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI) Trip
  • Wire Size: AWG 14 to AWG 8, Copper/Aluminum
  • Certification: UL Listed


Product Identification
  • UPC: 785901371861
  • GTIN: 00785901371861