Siemens Q240 is a two-pole, 40-amp plug-in circuit breaker designed for 120/240 VAC residential service, built on the Type QP/MP frame. It delivers thermal-magnetic overcurrent protection with a 10,000-amp interrupt rating and uses a common-trip design to disconnect both poles simultaneously. As a plug-in device, it fits Siemens load centers and panel boards that accept QP/MP breakers. This model is rated for residential distribution and provides 2-pole, 40 A protection in 120/240 VAC circuits.
