Siemens QRH23B175 U 175A 3P 240V {AIC}K Circuit Breaker

Siemens QRH23B175 U is a 3-pole molded-case circuit breaker rated for 175 A at 240 V, designed to protect feeders and branch circuits in commercial and industrial electrical panels; it uses a thermal-magnetic trip to respond to overcurrent and short-circuit conditions quickly. As part of the QR/QRH family, it is intended for panelboard integration and field service, with compatibility in configurations that require QR-type breakers in Siemens panel systems. The device’s interrupting capacity is specified as 10 kA at 240 V for QRH23B175 configurations, offering a robust level of protection for standard 240 V circuits in demanding environments. Typical applications include safeguarding distribution panels in light to medium commercial and industrial settings where a 175 A, 3-pole protection device is appropriate.