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Square D HDA36070SR - Molded Case Circuit Breaker 70A 3-Pole 600V

Square D
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Square D HDA36070SR is a PowerPact H series molded case circuit breaker designed for overload and short-circuit protection in industrial and commercial power distribution systems. This 3-pole, 70A unit is rated for 600V AC and features a thermal-magnetic trip unit with LI (Long-Time and Instantaneous) functions, providing a continuous current rating of 80% and an interrupting capacity of 18kA at 480V AC. The breaker utilizes an I-Line style plug-in connection for mounting in Class 612 panelboards and switchboards, with a compact footprint measuring 9.73 inches high, 4.48 inches wide, and 4.8 inches deep, and weighs 6 lb. It is UL Listed, CSA Certified, and IEC Rated, ensuring compliance with major industry standards for reliable performance. Typical applications include main or branch circuit protection in industrial switchboards, commercial panelboards, and motor control centers, where its integrated 125Vdc shunt trip enables remote tripping for enhanced system control.

Key Features & Specifications
  • Manufacturer: Square D
  • Series: PowerPact H
  • Type: HDA
  • Frame Type: H-Frame
  • Poles: 3
  • Phase: 3
  • Current Rating: 70A
  • Voltage Rating: 600V AC
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Connection: I-Line Style Plug-In
  • Mounting Type: I-Line Plug-In
  • Interrupt Rating: 18kA @ 480V AC
  • Wire Gauge: AWG 14 to AWG 3/0 aluminum/copper
  • Continuous Current Rating: 80%
  • Magnetic Hold Current: 800A
  • Magnetic Tripping Current: 1450A
  • Standards: UL Listed, CSA Certified, IEC Rated
  • Application: Class 612 I-Line Panelboard/Switchboard
  • Dimensions: 9.73" H x 4.48" W x 4.8" D
  • Weight: 6 lb
  • Additional Info: complete with 125Vdc shunt trip


Part Number: HDA36070SR