{"product_id":"siemens-qjh23b175-175a-240v-3-pole-bolt-on-circuit-breaker","title":"Siemens QJH23B175 175 Amp 240 Volt 3-Pole Circuit Breaker","description":"\u003cdiv\u003eSiemens QJH23B175 is a robust, high-current solution designed to safeguard your electrical system with precise, dependable protection. This 175 A, 240 V, 3-pole bolt-on molded case circuit breaker is built for reliable branch circuit overcurrent and short-circuit protection in panelboards and load centers, making it ideal for residential setups, commercial applications, and light industrial environments. \u003cb\u003eKey advantages that set this breaker apart\u003c\/b\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e for a rigid, vibration-resistant bus connection that stays locked in even in demanding environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection performance against both overloads and short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e provides balanced protection across three phases, essential for modern 240 V systems and three-phase equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e with matching Siemens panelboards and loadcenters, ensuring a seamless, reliable fit in existing configurations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile across sectors\u003c\/strong\u003e suitable for residential, commercial, and light industrial installations where dependable protection is a must.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cb\u003eWho should consider this breaker?\u003c\/b\u003e\n\u003cul\u003e \u003cli\u003eElectrical professionals upgrading or expanding panelboards that require a 175 A, 3-pole bolt-on solution.\u003c\/li\u003e \u003cli\u003eFacility managers seeking durable protection for feeders and distribution circuits in commercial spaces.\u003c\/li\u003e \u003cli\u003e contractors tackling retrofit projects where bolt-on mounting reduces panel downtime and preserves bus integrity.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cb\u003eTypical applications and use cases\u003c\/b\u003e\n\u003cul\u003e \u003cli\u003eProtection for three-phase distribution circuits in panelboards and load centers up to 240 V.\u003c\/li\u003e \u003cli\u003eFeeder protection for commercial lighting systems, HVAC equipment, and controlled motor loads.\u003c\/li\u003e \u003cli\u003eNew installations in residential or light industrial settings where rugged, vibration-resistant mounting is advantageous.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cb\u003eTechnical snapshot\u003c\/b\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e QJH23B175\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 175 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cb\u003ePractical guidance for installation and equivalence\u003c\/b\u003e\n\u003cp\u003eThis Siemens QJH23B175 pairs with matching OEM loadcenters and panelboards, delivering a cohesive protection solution across your electrical distribution. For best results, ensure the bolt-on connection to the bus is secured per panel manufacturer guidelines to maintain a solid, vibration-resistant interface. The thermal-magnetic trip mechanism provides dependable response: it initiates a trip quickly on short circuits and maintains stable protection during normal loading, reducing nuisance trips and safeguarding connected equipment.\u003c\/p\u003e \u003cb\u003eWhy choose this Siemens breaker\u003c\/b\u003e\n\u003cp\u003eWhen your project demands a dependable, industry-standard 3-pole breaker with a secure mounting method and compatible OEM integration, the QJH23B175 delivers. Its combination of rugged bolt-on installation, a thermal-magnetic trip unit, and 3-phase protection makes it a thoughtful, future-proof choice for panel upgrades, new constructions, and routine maintenance in residential, commercial, and light industrial applications.\u003c\/p\u003e \u003cp\u003eAvailable through AmpState, the Siemens QJH23B175 is the trusted option for reliable, code-compliant overcurrent and short-circuit protection in your electrical infrastructure.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355163021474,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-qjh23b175-175-a-240-v-3-pole-bolt-on-circuit-breaker-235.webp?v=1788737191","url":"https:\/\/www.ampstate.com\/products\/siemens-qjh23b175-175a-240v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}