{"product_id":"siemens-q340-40a-3p-240v-circuit-breaker","title":"Siemens Q340 40A 3P 240V Circuit Breaker, Plug-On | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens Q340 40A 3P 240V circuit breaker\u003c\/strong\u003e — built for everyday electrical work, this plug-on protection device secures panelboards, load centers, and electrical distribution with reliable performance.\u003c\/p\u003e \u003cp\u003eA smart pick for maintenance teams, panel builders, and spare inventories where a direct part-number match matters, the Q340 ensures quick, confident replacements.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Circuit Breaker (Plug-On)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e Q340\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e panelboards, load centers, electrical distribution\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e plug-on for fast, tool-free swaps\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this matters on the job\u003c\/strong\u003e - Direct part-number alignment minimizes guesswork during replacements, ensuring you match the exact Siemens design your system was built around. The plug-on format speeds field swaps, reduces downtime, and helps keep spare inventories lean by using a single, widely supported component across multiple panels.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIdeal for\u003c\/strong\u003e - maintenance crews servicing commercial buildings, electrical contractors assembling or upgrading panelboards, and facilities maintaining stock of common circuit protection parts.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhat problems does it solve?\u003c\/strong\u003e - Eliminates misfit breakers, accelerates installation, and delivers reliable protection for critical circuits in 240V systems. When a panel requires a precise Siemens Q340 replacement, this part ensures compatibility without modifications.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCompatibility and support\u003c\/strong\u003e - If you’re unsure about fit, AmpState offers guidance to confirm compatibility and ensure you’re selecting the right part number (Q340) for your Siemens panel. Send a message to get help with matching and installation considerations.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e - This item is available from AmpState, ready to ship to keep your project on schedule.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46410841653410,"sku":"Q340","price":165.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_83963f7f-600e-419f-90c6-e7677089642b.png?v=1765492973","url":"https:\/\/www.ampstate.com\/products\/siemens-q340-40a-3p-240v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}