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Square D HDA36125UR - Molded Case 125A 600V 3-Pole

Square D
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Square D HDA36125UR is a Powerpact H molded case circuit breaker designed for overcurrent protection in three-phase power distribution systems. This 125A, 600V unit utilizes a thermal magnetic trip mechanism with LI (Long-Time and Instantaneous) functions to safeguard electrical circuits. The three-pole breaker features an I-Line style plug-in connection and weighs 6 lb, with a compact molded case construction for panelboard installation. It carries an AIC rating of 18kA at 480V and complies with UL, CSA, and IEC standards for reliable performance. This circuit breaker is suited for industrial applications requiring robust protection in high-voltage environments.

Key Features & Specifications
  • Manufacturer: Square D
  • Model: HDA36125UR
  • Family: Powerpact
  • Type: HDA
  • Item Subcategory: Molded Case
  • Current Rating: 125 A
  • Voltage Rating: 600 VAC / 250 VDC
  • Number of Poles: 3
  • Phase: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Connection: I-Line Style Plug-In
  • Mounting Type: Plug-On (I-Line)
  • Frame Type: H
  • AIC Rating: 18 kA at 480 VAC
  • Interrupt Rating: 25 kA at 240 VAC, 18 kA at 480 VAC, 14 kA at 600 VAC, 20 kA at 250 VDC
  • Frequency: 50/60 Hz
  • Weight: 6 lb
  • Trip Range: 900 to 1700 A
  • Operating Temperature: -13 to 158 °F
  • Certifications: UL Listed, CSA Certified, IEC Rated