Siemens QP290 Industrial Heavy Duty Power Contactor

Siemens QP290 is a 2-pole, 90 A circuit breaker in the QP family, engineered for plug-in installation in compatible Siemens panels and distribution enclosures. It is rated for 120/240 V AC and delivers a 90-amp capacity to protect feeders and branch circuits, with a 10,000-amp interrupt rating at 240 V (10 kAIC), which helps limit fault currents in typical commercial and residential electrical systems. As a Type QP device, the QP290 is designed for thermal-magnetic operation, providing both overload protection and short-circuit interruption, and it is described in listings as interchangeable with Siemens QP panels, ensuring straightforward replacement in existing installations. This 2-pole configuration protects both hot legs in a split-phase system, making it suitable for 240 V circuits such as large appliances, motors, or other equipment in the right panel infrastructure. The QP290’s 90 A rating and 240 V compatibility align with common industrial and building distribution needs where robust, code-compliant protection is required. It is widely cataloged as Siemens Q290, QP series, 2P 90A 240V, with documentation and retailer listings confirming its plug-in, 2-pole, 120/240 V operation and 10 kA interrupt capacity.