Siemens Q130 Plug-In Circuit Breaker

Siemens Q130 is a 30-amp, 120/240-volt, single-pole plug-in circuit breaker from the QP family, designed for use in Siemens load centers and MP-frame panels. It provides thermal-magnetic overcurrent protection with a 10 kA interrupt rating and is UL 489 listed, using a plug-in connection that enables quick, tool-free installation in compatible Siemens enclosures. The unit occupies a 1-inch-wide slot and measures approximately 3 inches long by 1 inch wide by 3 inches high, is designed for operation at ambient temperatures up to 40°C, and accepts conductors in the 14–6 AWG range. This 1P 30A device protects a single branch circuit against overloads and short circuits, making it suitable for feeders or branch circuits in residential or light commercial panels that use Type QP/MP breakers, in particular when replacing older devices or upgrading protection in Siemens systems. Some catalog entries list this model as Q130U (the standard-trip version) within the QP lineup, and retailers such as Home Depot and Lowe's market 30A QP single-pole breakers under that designation, reflecting broad compatibility with Siemens load centers and meter combos.