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Square D BJA160203 - Molded Case Circuit Breaker 20A 1-Pole

Square D
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Square D BJA160203 is a 1-pole thermal magnetic molded case circuit breaker from the Powerpact family, designed to provide long time and instantaneous trip protection for power distribution systems. It is rated for 20A at 600V with a 100kA interrupting capacity at 240V, and supports wire sizes from AWG 14 to AWG 2/0 in aluminum or copper. The unit measures 5.4 in (137 mm) in height, 1.06 in (27 mm) in width, and 3.5 in (89 mm) in depth, weighs 1.781 lb, and features an I-Line style plug-in connection with line and load lugs. It complies with UL 489, CSA C22.2 No 5, EN/IEC 60947-2, GB 14048.2, NEMA AB1, and NMX J-266 standards, and holds certifications from UL, IEC, CCC, EAC, CSA, and NOM. This circuit breaker is suitable for industrial applications requiring reliable branch circuit protection in panelboards and switchboards.

Key Features & Specifications
  • Type: BJA
  • Family: Powerpact
  • Item Subcategory: Molded Case
  • Poles: 1
  • Phase: 1
  • Phase Connection: B
  • Current Rating: 20A
  • Voltage Rating: 600V
  • AIC Rating: 100kA@240V
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: J
  • Connection: I-Line Style Plug-In
  • Terminal Connection: I-Line, Lug
  • Wire Size: AWG 14...AWG 2/0 aluminium/copper
  • Dimensions: 5.4 in (137 mm) x 1.06 in (27 mm) x 3.5 in (89 mm) (Height x Width x Depth)
  • Weight: 1.781 lb
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Standards: EN/IEC 60947-2, CSA C22.2 No 5, UL 489, GB 14048.2, NEMA AB1, EN/IEC 60947-5-1, NMX J-266
  • Certification: UL, IEC, CCC, EAC, CSA, NOM
  • Country of Origin: Mexico


Product Identification
  • UPC: 606481154170
  • GTIN: 03606481154170