{"product_id":"siemens-qr23b100-100a-240v-3-pole-bolt-on-circuit-breaker","title":"Siemens QR23B100 - 100 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet Siemens QR23B100, a rugged 3-pole bolt-on molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. With a solid 100 A rating at 240 V, it’s built to hold up in residential, commercial, and light industrial environments where reliability matters most.\u003c\/p\u003e \u003ch2\u003eWhy this QR23B100 stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection, reducing looseness and electrical impedance in demanding installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection performance by combining fast short-circuit interruption with reliable overload sensing.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMolded case design\u003c\/strong\u003e enables solid insulation, compact footprint, and safe operation at the standard 240 V of most commercial and residential panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e designed to pair with matching Siemens loadcenters and panelboards for a seamless fit and straightforward replacement or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suitable for a wide range of settings—from service panels and electrical rooms to light commercial equipment rooms—where dependable protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhat problems does it solve?\u003c\/h2\u003e\n\u003cp\u003eIn environments where panel vibrations, wiring flex, or dense electrical loads are common, this QR23B100 prevents nuisance trips and protects wiring and devices from damage. The bolt-on design minimizes connection delays and loosening over time, while the thermal-magnetic trip unit ensures accurate response to overloads and short circuits, helping you avoid costly downtime and equipment failures.\u003c\/p\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or replacing aging or incompatible circuit breakers in Siemens panelboards and loadcenters.\u003c\/li\u003e \u003cli\u003eProtection for multi-wire branch circuits in residential basements, home offices, or small workshop spaces.\u003c\/li\u003e \u003cli\u003eCommercial electrical rooms and light industrial panels where a reliable 3-pole, 100 A protection device is required.\u003c\/li\u003e \u003cli\u003eInstallations where vibration resistance and a secure bus connection are critical to long-term performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical overview\u003c\/h2\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 QR23B100\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 100 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of poles:\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 \u003ch2\u003eInstallation and compatibility tips\u003c\/h2\u003e\n\u003cp\u003eChoose this QR23B100 when you need a durable, OEM-compatible protection device that aligns with Siemens panelboards and loadcenters. The bolt-on mounting helps ensure a solid, low-impedance connection, which is especially beneficial in installations subject to vibration or movement. For best results, pair with the corresponding Siemens components designed for your panel family to maintain coordinated protection characteristics and trip performance.\u003c\/p\u003e \u003ch2\u003eWhat you gain\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eReassuring reliability from a long-standing brand trusted in electrical distribution.\u003c\/li\u003e \u003cli\u003eClear, predictable protection curves that simplify fault analysis and maintenance planning.\u003c\/li\u003e \u003cli\u003eEase of integration into existing Siemens mid- to large-size panel installations, with a straightforward replacement path when upgrading to a higher-current or multi-pole solution.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355166265506,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens_breaker_and_panel_9648b022-2c10-4fd3-9837-f4cafa3dcbf0.png?v=1764689903","url":"https:\/\/www.ampstate.com\/products\/siemens-qr23b100-100a-240v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}