Square D by Schneider Electric QOB320 Square D-QOB320-Bolt On Circuit Breaker, 20 Amps, Number of Poles: 3, 240VAC AC Voltage Rating, Color - Amazon.com
Square D - QOB230VH - Bolt On Circuit Breaker, 30 Amps, Number of Poles: 2, 120/240VAC AC Voltage Rating - Amazon.com
Square D QOB330 30A 3 Pole Miniature Circuit Breaker | eBay
SQUARE D QOB330 30 Amp 3-Pole Miniature Bolt-On Circuit Breaker 120/240VAC -Used – St. John's Institute (Hua Ming)