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Square D HDA261504AABC - Molded Case Breaker 150A 600V 2-Pole

Square D
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Square D HDA261504AABC is a 2-pole molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It is rated for 150A continuous current at 600VAC with an interrupting capacity of 18kA at 480V, providing long-time and instantaneous (LI) trip functions for thermal-magnetic protection. The unit weighs 10.27 lb and features an I-Line style plug-in connection for direct bus mounting in Square D panelboards. This breaker complies with UL and NEMA standards for molded case circuit breakers, ensuring reliable performance in commercial and industrial environments. Typical applications include branch circuit protection in switchboards, motor control centers, and lighting panels where single-phase or three-phase loads require coordinated overcurrent protection.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic, LI trip functions
  • Voltage Rating: 600V AC
  • Current Rating: 150A
  • Dimensions: Standard molded case frame size
  • Standards: UL, NEMA
  • Applications: Industrial power distribution, panelboards, switchboards
  • Switch Type: I-Line style plug-in
  • Configuration: 2-pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: Standard ambient
  • Shipping Dimensions: Standard for frame size
  • Phase: 1
  • Voltage: 600V
  • Amperage: 150A
  • AIC rating: 18kA@480V
  • Connection: I-Line Style Plug-In
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: HDA
  • Trip Type: Thermal-magnetic
  • Panel Type: I-Line
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Not specified
  • Panel Style: I-Line
  • Bus Type: I-Line
  • Fuse Class: Not applicable
  • Insulation Temperature: Standard
  • 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: 50/60
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: 150A
  • Dist Voltage: Not specified
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 150A
  • Full Load Amp Minimum: Not applicable
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 150A
  • Amperage Minimum: Not applicable
  • Nema Rating: Not specified
  • Switch Style: I-Line
  • Wire Size: Not specified
  • Certification: UL
  • Circuit Breaker Mounting Style: Plug-in
  • Terminal Connection: I-Line
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single phase
  • Standards: UL, NEMA
  • Compatible Frames: Square D I-Line panelboards
  • Installation Type: Plug-in
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: HDA
  • Current Rating: 150A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not specified
  • 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: Standard
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: Not available
  • GTIN: Not available