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Square D Q13151021 - 3-Pole 15A Thermal Magnetic Breaker

Square D
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Square D Q13151021 is a 3-pole molded case circuit breaker from the Q1 Series, designed for overcurrent protection in 120/240VAC electrical systems. This 15A thermal magnetic breaker provides long time and instantaneous trip functions, with a 10kA interrupting capacity at 240VAC and a plug-in connection for three-phase applications. The unit weighs 2 lb and operates within a temperature range of -13 to 158 °F (-25 to 70 °C). It is HACR rated and includes a visual trip indicator window, with load side connections via pressure plates suitable for #14 to #8 AWG aluminum or copper conductors. Typical industrial applications include branch circuit protection in panelboards and load centers.

Key Features & Specifications
  • Type: Molded Case
  • Family: Q1 Series
  • Amperage: 15 Amp
  • Voltage: 120/240VAC
  • Poles: 3
  • Phase: 3
  • Mounting Type: Plug-On
  • Connection: Plug-In
  • Interrupt Rating: 10kA @ 240VAC
  • Trip Unit: Thermal Magnetic with Shunt Trip
  • Functions: Long Time and Instantaneous Trip
  • Shunt Trip Voltage: 120V
  • Load Side Connection: Pressure Plate for #14 to #8 AWG (AL/CU)
  • Certifications: HACR Rated
  • Visual Trip Indicator: Yes
  • Weight: 2 lb
  • Temp Rating: -13–158 °F (-25–70 °C)


Q13151021