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Square D QHB315 - Molded Case Circuit Breaker (15A, 3-Pole)

Square D
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Square D QHB315 is a three-pole molded case circuit breaker designed to provide reliable overcurrent and short-circuit protection for three-phase electrical systems. It features a 15A current rating and a 240V AC voltage rating, with a compact bolt-on design measuring 76 mm H x 57 mm W x 74 mm D and a weight of 0.86 lb. The breaker utilizes a thermal-magnetic trip mechanism for both long-time and instantaneous protection, is rated for an interrupting capacity of 65kA at 240V, and operates within a temperature range of -25 to 70 °C. It is engineered for industrial and commercial applications, including panelboards and switchboards, and accepts copper or aluminum conductors from AWG 14 to AWG 8.

Key Features & Specifications
  • Type: QHB Series, Three-Pole, Molded Case Circuit Breaker with Thermal-Magnetic Protection
  • Voltage Rating: 240V AC
  • Current Rating: 15A
  • Dimensions: 3.0 in (76 mm) H x 2.2 in (57 mm) W x 2.9 in (74 mm) D
  • Standards: Designed to meet applicable industry standards for circuit protection
  • Applications: Industrial and commercial panelboards, switchboards, and motor control centers
  • Switch Type: Integrated Trip Mechanism
  • Configuration: Fixed
  • Connection: Bolt-On
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Phase: 3
  • AIC rating: 65kA@240V
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Wire Size: AWG 14 to AWG 8, Copper/Aluminum
  • Weight: 0.86 lb


Product Identification
  • UPC: 785901341659
  • GTIN: 00785901341659