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Square D BDA140203 - Molded Case Circuit Breaker 20A 1-Pole

Square D
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Square D BDA140203 is a 1-pole molded case circuit breaker from the Powerpact family, designed to provide thermal-magnetic protection for branch circuits in industrial applications. It is rated for 20A at 480V AC with a 25kA interrupting capacity at 240V, and features an I-Line style plug-in connection with lug terminals. The compact unit measures 5.4 in x 1.06 in x 3.5 in (137 mm x 27 mm x 89 mm) and weighs 1.75 lb, accepting wire sizes from 14 AWG to 2/0 AWG (copper/aluminum). This breaker complies with UL 489, CSA C22.2 No 5, IEC 60947-2, NEMA AB1, and other international standards, with certifications including UL, IEC, CCC, EAC, CSA, and NOM. It is suitable for use in panelboards, switchboards, and motor control centers requiring long-time and instantaneous trip functions within a -25°C to 70°C operating temperature range.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic
  • Voltage Rating: 480V AC
  • Current Rating: 20A
  • Dimensions: 5.4 in x 1.06 in x 3.5 in (137 mm x 27 mm x 89 mm)
  • Standards: UL 489, CSA C22.2 No 5, IEC 60947-2, NEMA AB1, NMX J-266, GB 14048.2
  • Applications: Panelboards, switchboards, motor control centers
  • Poles: 1
  • Connection: I-Line Style Plug-In
  • Terminal Connection: I-Line, Lug
  • Wire Size: AWG 14...AWG 2/0 aluminium/copper
  • MCM Size: Min. Wire Size 14 AWG (Cu/Al) Max. Wire Size 2/0 AWG (Cu/Al)
  • AIC rating: 25kA@240V
  • Phase: 1
  • Phase Connection: B
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: D
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Certification: UL, IEC, CCC, EAC, CSA, NOM
  • Weight: 1.75 lb
  • Country of Origin: Mexico


Product Identification
  • UPC: 606481151516