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Square D QO2901021 - 2-Pole 90A Circuit Breaker (10kA AIC)

Square D
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Square D QO2901021 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in single-phase electrical systems. It features a 90A current rating and a 240V AC voltage rating, housed in a compact plug-in design measuring 3.5 in (89 mm) H x 2.2 in (57 mm) W x 2.9 in (74 mm) D with a weight of 1 lb. The breaker complies with industry standards, utilizing a thermal-magnetic trip mechanism for both long-time delay and instantaneous (LI) protection with an interrupting capacity of 10kA at 240V. This two-pole device is typically applied in residential and light commercial load centers for branch circuit protection.

Key Features & Specifications
  • Type: Molded Case, Thermal-Magnetic Protection, Plug-In Connection
  • Voltage Rating: 240V AC
  • Current Rating: 90A
  • Dimensions: 3.5 in H x 2.2 in W x 2.9 in D (89 mm x 57 mm x 74 mm)
  • Weight: 1 lb
  • Standards: Industry Standard for Circuit Protection
  • Applications: Residential & Light Commercial Load Centers
  • Phase: 1
  • Poles: 2
  • AIC Rating: 10kA @ 240V
  • Connection: Plug-In
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous)
  • Family: QO Series


Product Identification
  • UPC: 785901030553
  • GTIN: 00785901030553