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Square D BJA160201 - Molded Case Circuit Breaker 20A 600V

Square D
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The Square D BJA160201 is a 1-pole molded case circuit breaker from the Powerpact family, designed to provide overcurrent protection for electrical distribution equipment and industrial control panels. It is rated for 600V AC and 20A, with a high interrupting capacity of 100kA at 240V, and features long time and instantaneous trip functions for reliable fault clearing. This compact breaker measures 5.4 in (137 mm) x 1.06 in (27 mm) x 3.5 in (89 mm) (H x W x D), weighs 1.75 lb, and uses an I-Line style plug-in connection with aluminum mechanical lugs on the OFF end and I-Line connection on the ON end, accepting wire sizes from 14 AWG to 2 AWG (aluminum/copper). It complies with multiple standards including CSA C22.2 No 5, GB 14048.2, UL 489, EN/IEC 60947-2, EN/IEC 60947-5-1, NEMA AB1, and NMX J-266, and holds certifications from UL, IEC, CCC, EAC, CSA, and NOM. Typical applications include branch circuit protection in commercial and industrial power distribution systems, where its 125A/BJ frame size and single-pole configuration suit 1-phase, phase A connections within an operating temperature range of -13 to 158 °F (-25 to 70 °C).

Key Features & Specifications
  • Type: Molded case circuit breaker, Powerpact family, standard breaker type
  • Voltage Rating: 600V AC
  • Current Rating: 20A
  • Dimensions: 5.4 in (137 mm) x 1.06 in (27 mm) x 3.5 in (89 mm) (Height x Width x Depth)
  • Standards: CSA C22.2 No 5, GB 14048.2, UL 489, EN/IEC 60947-2, EN/IEC 60947-5-1, NEMA AB1, NMX J-266
  • Applications: Electrical distribution equipment, industrial control panels, branch circuit protection
  • Switch Type: N/A
  • Configuration: 1-pole, 1-phase
  • Coil Voltage Maximum: N/A
  • Temp Rating: -13 to 158 °F (-25 to 70 °C)
  • Shipping Dimensions: N/A
  • Phase: 1
  • Voltage: 600V
  • Amperage: 20A
  • AIC rating: 100kA@240V
  • Connection: I-Line Style Plug-In
  • Poles: 1
  • Protection: Overcurrent (long time and instantaneous trip)
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: 125A/BJ
  • Trip Type: Thermal-magnetic (long time and instantaneous)
  • Panel Type: Electrical Distribution Equipment, Industrial Control Panels
  • Breaker Type: Standard
  • Control Voltage Minimum: N/A
  • Control Voltage Maximum: N/A
  • MCM Size: Min. Wire Size 14 AWG, Max. Wire Size 2 AWG
  • Metal Type: N/A
  • Panel Style: N/A
  • Bus Type: N/A
  • Fuse Class: N/A
  • Insulation Temperature: N/A
  • Inductance: N/A
  • Impedance: N/A
  • Barrels: N/A
  • Class Rating: N/A
  • Diameter: N/A
  • Velocity: N/A
  • Clip Center: N/A
  • Clas: N/A
  • Mounting: I-Line plug-in
  • Hz: N/A
  • Coil Material: N/A
  • Horse Power: N/A
  • Aux Contacts: N/A
  • CPT: N/A
  • Full Load Amps: N/A
  • Dist Voltage: N/A
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: N/A
  • Full Load Amp Minimum: N/A
  • Enclosure: N/A
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: AWG 14...AWG 2/0 aluminium/copper
  • Amperage Maximum: 20A
  • Amperage Minimum: N/A
  • Nema Rating: N/A
  • Switch Style: N/A
  • Wire Size: AWG 14...AWG 2/0 aluminium/copper
  • Certification: UL, IEC, CCC, EAC, CSA, NOM
  • Circuit Breaker Mounting Style: I-Line plug-in
  • Terminal Connection: Al Mechanical Lug OFF End, I-Line ON End
  • Frequency Rating: N/A
  • Phase Connection: A
  • Standards: CSA C22.2 No 5, GB 14048.2, UL 489, EN/IEC 60947-2, EN/IEC 60947-5-1, NEMA AB1, NMX J-266
  • Compatible Frames: 125A/BJ
  • Installation Type: Plug-in
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: 125A/BJ
  • Current Rating: 20A
  • Reverse Standoff Voltage: N/A
  • Watts: N/A
  • Peak Pulse Current: N/A
  • Breakdown Voltage (MIN VBR@IT ) (V): N/A
  • Breakdown Voltage (VBR@IT) (V): N/A
  • Polarity: N/A
  • Operating Temperature Maximum Celsius: 70 °C
  • Max Clamp Voltage: N/A
  • On-State Current: N/A


Product Identification
  • UPC: 785901037408
  • GTIN: 03606481154163