Schneider Electric QOB120PL U Circuit Breaker

Square D by Schneider Electric QOB120PL U is a 1‑pole, 20‑amp bolt‑on molded‑case circuit breaker for 120/240 V circuits. It delivers a 10 kA interrupting rating and is intended for bolted‑on installation in QO panelboards as well as compatible legacy NQOB/NQOD installations that accept QO‑style breakers. The QOB120PL U uses box lug terminations supporting aluminum conductors from 12 AWG to 2 AWG or copper conductors from 14 AWG to 2 AWG, and its enclosure is compatible with NEMA AB1 installations. Physical dimensions are 4.55 in high, 0.75 in wide, and 2.91 in deep, with a maximum ambient operating temperature around 104°F (40°C). It is UL‑listed and CSA certified, aligning with typical electrical code requirements for residential and light commercial protection.