General Electric THQL1120AF2 Miniature Circuit Breaker

General Electric THQL1120AF2 Miniature Circuit Breaker (NSB THQL1120AF2) is a THQL-series, single-pole protective device rated for 20 amperes on 1-phase, 50/60 Hz power. The model designation THQL1120AF2 identifies a 1P, 20A breaker within GE’s THQL family, confirming its role in providing overcurrent protection for individual circuits. Designed for operation on both 50 Hz and 60 Hz electrical systems, this GE MCB is suitable for installations that require reliable interruption at or below its 20 A rating, helping to prevent conductor damage and equipment faults caused by overcurrent conditions. The device is configured as a 1-pole unit, aligning with single-phase circuit protection requirements, and is part of GE’s NSB THQL1120AF2 lineup. Its 1P/20A specification makes it a compact, straightforward option for protecting a single branch circuit in 1-phase power distributions, with compatibility across common 50/60 Hz networks. The THQL1120AF2 model acronym communicates its precise rating within GE’s extensive THQL portfolio, enabling straightforward identification in electrical panels and maintenance records.