Schneider Electric 1B120 Plug In Circuit Breaker

Schneider Electric's Square D 1B120 is a 1-pole, 20-amp plug-in circuit breaker designed for 120/240-volt service and a long-stab mounting style. This single-pole device interrupts current on a single branch circuit to provide protection in electrical distribution systems, and its long-stab design distinguishes it from bolt-on breakers. The 1B120 is a compact, plug-in unit intended for use in compatible Square D panels that support this mounting method, delivering reliable engagement and operation within 120/240-volt configurations. With a 20-amp rating, it is suited to circuits sized for moderate load in typical residential or light commercial applications that require 120/240-volt service. When selecting this model, ensure you are using a panel and installation that accommodate a long-stab plug-in, 1-pole, and 20-amp configuration to meet your circuit protection requirements.