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Square D BDA24020Y2 - Molded Case 20A 480VAC Breaker

Square D
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The Square D BDA24020Y2 is a 2-pole molded case circuit breaker designed for thermal-magnetic overcurrent protection in industrial power distribution systems. It is rated for 20A at 480Y/277VAC with an AIC rating of 18kAIC at 480VAC, 14kAIC at 600VAC, and 25kAIC at 240VAC, utilizing a plug-in connection and supporting wire sizes from AWG 14 to AWG 2/0 aluminum/copper. This BDA frame breaker measures 5.4 in (137 mm) x 2.1 in (54 mm) x 3.5 in (89 mm) (H x W x D), weighs 3.13 lb, and is constructed for single-phase operation with long time and instantaneous trip functions. It complies with UL 489, CSA C22.2 No 5, EN/IEC 60947-2, and other global standards, with certifications from UL, IEC, CCC, EAC, CSA, and NOM, and operates within a temperature range of -13 to 158 °F (-25 to 70 °C). Typical applications include branch circuit protection in panelboards, switchboards, and motor control centers requiring reliable overcurrent and short-circuit interruption.

Key Features & Specifications
  • Type: Molded Case, BDA frame, thermal-magnetic protection
  • Voltage Rating: 480Y/277VAC
  • Current Rating: 20A
  • Dimensions: 5.4 in (137 mm) x 2.1 in (54 mm) x 3.5 in (89 mm) (Height x Width x Depth)
  • Standards: UL 489, GB 14048.2, EN/IEC 60947-5-1, CSA C22.2 No 5, EN/IEC 60947-2, NEMA AB1, NMX J-266
  • Applications: Industrial power distribution, panelboards, switchboards, motor control centers
  • Switch Type: Circuit breaker
  • Configuration: 2-pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Shipping Dimensions: Not specified
  • Phase: 1
  • Voltage: 480Y/277VAC
  • Amperage: 20A
  • AIC rating: 18kAIC at 480VAC, 14kAIC at 600VAC, 25kAIC at 240VAC
  • Connection: Plug-In
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: BDA
  • Trip Type: Thermal-magnetic
  • Panel Type: Not specified
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: Not specified
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Plug-In
  • Hz: Not specified
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: Not specified
  • Dist Voltage: Not specified
  • Bucket Size: Not specified
  • Bucket Style: Not specified
  • Bucket Type: Not specified
  • Full Load Amp Maximum: Not specified
  • Full Load Amp Minimum: Not specified
  • Enclosure: Not specified
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: AWG 14...AWG 2/0 aluminium/copper
  • Amperage Maximum: 20A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Circuit breaker
  • Wire Size: AWG 14...AWG 2/0 aluminium/copper
  • Certification: UL, IEC, CCC, EAC, CSA, NOM
  • Circuit Breaker Mounting Style: Plug-In
  • Terminal Connection: Not specified
  • Frequency Rating: Not specified
  • Phase Connection: Single-phase
  • Standards: UL 489, GB 14048.2, EN/IEC 60947-5-1, CSA C22.2 No 5, EN/IEC 60947-2, NEMA AB1, NMX J-266
  • Compatible Frames: BDA
  • Installation Type: Plug-In
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: BDA
  • Current Rating: 20A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not applicable
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: 70 °C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 60648115177
  • GTIN: 3606481151773