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Square D QO1701021 - 70A 1-Pole Thermal Magnetic Breaker

Square D
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Square D QO1701021 is a 1-pole molded case circuit breaker from the QO Series, designed to provide overcurrent protection for branch circuits. It features a 70A current rating and a voltage rating of 240V, with a 10kA interrupting capacity at 240V. The unit utilizes thermal-magnetic protection with LI (Long-Time and Instantaneous) functions, measures 3.1 in (79 mm) x 0.7 in (19 mm) x 2.9 in (74 mm) (H x W x D), and weighs 0.71 lb, employing a plug-in connection for installation. This breaker complies with industry standards for residential and commercial load centers and panelboards, making it suitable for protecting lighting, appliance, and general-purpose circuits in single-phase applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, QO Series, Plug-In Connection
  • Voltage Rating: 240V
  • Current Rating: 70A
  • Dimensions: 3.1 in (79 mm) x 0.7 in (19 mm) x 2.9 in (74 mm) (Height x Width x Depth)
  • Weight: 0.71 lb
  • Functions: LI - Long-Time and Instantaneous
  • Poles: 1
  • Phase: 1
  • Protection: Thermal Magnetic
  • AIC Rating: 10kA@240V
  • Standards: Industry standard for load centers and panelboards
  • Applications: Branch circuit protection in residential and commercial electrical systems


Product Identification
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