Square D NSB HGA36070YP Molded Case Breaker MCCB

Square D PowerPacT HGA36070YP Molded Case Breaker (MCCB) is a 70-amp, three-pole device that plugs into I-Line panelboards for compact, reliable protection of feeders and motor circuits in industrial environments. This 600-volt rated MCCB combines thermal-magnetic trip functionality with distinct long-time and instantaneous trip actions, is UL-listed, and includes a padlock-ready ON/OFF end for safe lockout. The trip mechanism is non-interchangeable to maintain precise coordination within PowerPacT H installations, and the unit is designed for reverse-fed applications where protection and selectivity are critical. Interrupting capacity varies with voltage: 18 kA at 600 VAC and up to 35 kA at 480 VAC, enabling it to safely interrupt fault currents across a range of industrial systems, with an 80% continuous-load rating noted on some listings. Typical applications include motor and transformer feeders, distribution circuits, and other demanding loads in control panels and switchgear, where a compact yet high-capacity MCCB is needed to meet both protection and control requirements in compact spaces.