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Square D HJA260302AABC - Molded Case Breaker 30A 600V

Square D
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Square D HJA260302AABC is a 2-pole molded case circuit breaker designed for thermal magnetic overcurrent protection in industrial power distribution systems. It is rated for 30A continuous current at 600VAC with a 65kA interrupting capacity at 480V, providing LI (Long-Time and Instantaneous) trip functions for coordinated fault clearing. The unit features an I-Line style plug-in connection, weighs 7.5 lb, and is constructed for single-phase applications with a compact molded case housing. This breaker complies with UL and NEMA standards for use in switchboards and panelboards. It is typically applied in manufacturing facilities, commercial buildings, and heavy machinery circuits requiring reliable short-circuit and overload protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic, LI (Long-Time and Instantaneous) trip
  • Voltage Rating: 600V AC
  • Current Rating: 30A
  • Dimensions: Standard molded case size for 2-pole I-Line
  • Standards: UL 489, NEMA AB-1
  • Applications: Industrial power distribution, motor control centers, panelboards
  • Switch Type: I-Line Style Plug-In
  • Configuration: 2-Pole, Single-Phase
  • Coil Voltage Maximum: Not applicable (thermal magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Standard packaging
  • Phase: 1
  • Voltage: 600V
  • Amperage: 30A
  • AIC rating: 65kA@480V
  • Connection: I-Line Style Plug-In
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: HJA
  • Trip Type: Thermal Magnetic
  • Panel Type: I-Line compatible
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Copper alloy contacts
  • Panel Style: I-Line
  • Bus Type: I-Line
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Standard I-Line spacing
  • Clas: Not applicable
  • Mounting: Plug-In
  • Hz: 50/60
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 30A
  • Dist Voltage: 600V
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 30A
  • Full Load Amp Minimum: 30A
  • Enclosure: Open frame
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not applicable
  • Amperage Maximum: 30A
  • Amperage Minimum: 30A
  • Nema Rating: NEMA AB-1
  • Switch Style: I-Line
  • Wire Size: Not specified
  • Certification: UL 489
  • 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: HJA
  • Current Rating: 30A
  • 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: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


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