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HDA36070UO

Square D
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Square D HDA36070UO is a Powerpact H series molded case circuit breaker designed for overcurrent protection in commercial and industrial power distribution systems. This 3-pole, 70A unit is rated for 600V AC and provides thermal-magnetic trip protection with long-time and instantaneous (LI) functions. It features an I-Line style plug-in connection for Class 611/612 panelboards and switchboards, weighing 6 lb with a compact molded case construction. The breaker complies with UL, CSA, IEC, and CE standards, ensuring broad regulatory acceptance. It is typically applied in panelboards, switchboards, and motor control centers requiring reliable branch circuit protection.

Key Features & Specifications
  • Manufacturer: Square D
  • Series/Frame: Powerpact H
  • Type: HDA
  • Amperage: 70 A
  • Voltage Rating: 600 V AC, 250 V DC
  • Number of Poles: 3
  • Phase: 3 (ABC)
  • Mounting Type: I-Line plug-in
  • Protection: Thermal-magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Interrupt Rating: 25 kA @ 240 V AC, 18 kA @ 480 V AC, 14 kA @ 600 V AC, 20 kA @ 250 V DC
  • Continuous Current Rating: 80%
  • Magnetic Hold Current: 800 A
  • Magnetic Trip Current: 1450 A
  • Weight: 6 lb
  • Certifications: UL Listed, CSA Certified, IEC Rated, CE Marked


Square D HDA36070UO - Molded Case Circuit Breaker 70A 3-Pole 600V