Exclusive Offer Square D MH320 – 20A 3 Pole Miniature Circuit Breaker

Providing essential overcurrent protection, this 20-amp miniature breaker handles three-phase commercial loads. The unit utilizes proven thermal-magnetic trip technology to safeguard wiring against overloads and short circuits in demanding environments. Installs into legacy Square D MH panelboards to keep existing distribution systems operational. Facility engineers can also use the QOB320 as a verified substitute when replacing components in these specific older enclosures.