{"product_id":"siemens-q340-40a-240v-3-pole-plug-in-circuit-breaker","title":"Siemens Q340 - 40 A, 240 V, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens Q340 — a 40A, 240V, 3-pole plug-in molded case circuit breaker engineered for dependable branch circuit protection in panelboards and loadcenters. Designed to integrate seamlessly into standard electrical distribution, the Q340 delivers reliable overcurrent and short-circuit protection where it matters most.\u003c\/p\u003e \u003ch2\u003eWhy this breaker stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e for quick installation and effortless replacement, minimizing downtime during service or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection performance, reducing nuisance trips while reliably interrupting fault conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e ensures seamless compatibility with matching Siemens OEM loadcenters and panelboards for a cohesive, risk-averse electrical system.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments where dependable distribution protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhat it is and how it protects your system\u003c\/h2\u003e\n\u003cp\u003eThe Siemens Q340 is a molded case circuit breaker built to guard against branch circuit overcurrent and short circuits. Its plug-in mounting style simplifies installation in compatible panelboards, enabling fast upgrades or replacements without sacrificing protection quality. The 3-pole configuration provides robust three-phase protection when your electrical system requires it, while the 240V rating supports common commercial and industrial circuits as well as multi-wire branch circuits in larger homes or facilities.\u003c\/p\u003e \u003ch2\u003eTechnical snapshot\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrong manufacturer:\u003e Siemens\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e Q340\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 40A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240V\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 Plug-in\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\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eResidential service panels undergoing expansion or modernization where reliable protection is required for multi-circuit layouts.\u003c\/li\u003e \u003cli\u003eCommercial distribution panels handling multiple branch circuits with higher load demands.\u003c\/li\u003e \u003cli\u003eLight industrial applications where compact, plug-in protection is preferred for quick swaps and minimal downtime.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical tips for optimal performance\u003c\/h2\u003e\n\u003cp\u003ePair the Siemens Q340 with compatible OEM loadcenters and panelboards to ensure plug-in integrity and electrical compatibility. When replacing an older breaker, verify the 3-pole, 40A configuration matches the panel’s design to maintain consistent protection characteristics. Use in environments where rapid serviceability and dependable trip performance are critical to maintaining uninterrupted power for sensitive equipment and essential circuits.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355157745826,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-q340-40-a-240-v-3-pole-plug-in-circuit-breaker-ampstate-527.webp?v=1788736250","url":"https:\/\/www.ampstate.com\/products\/siemens-q340-40a-240v-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}