{"product_id":"siemens-q140-40a-120v-1-pole-plug-in-circuit-breaker","title":"Siemens Q140 - 40 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet Siemens Q140 — a 40A, 120V, 1-pole plug-in molded case circuit breaker engineered for reliable branch circuit protection in panelboards and load centers. Designed for fast, hassle-free swaps, this unit snaps into place with a single plug-in connection, so you spend less time on panel maintenance and more time on the job.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e for quick installation and replacement, reducing downtime in service calls and upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip\u003c\/strong\u003e provides stable, repeatable protection for both overloads and short circuits, helping to prevent nuisance trips and ensure safety.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMolded case construction\u003c\/strong\u003e delivers rugged durability suitable for residential, commercial, and light industrial environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e with matching Siemens load centers and panelboards, ensuring a clean fit and reliable performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e ideal for protecting branch circuits in homes, small offices, workshops, and light production settings.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eTechnical snapshot: Siemens Q140 | 40A, 120V, 1-pole, plug-in, thermal-magnetic molded case circuit breaker. This unit is built to deliver dependable overcurrent and short-circuit protection where you need it most, from service panels to subpanels, without complicating your wiring or maintenance routine.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 120 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 1\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style:\u003c\/strong\u003e Plug-in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal for electricians and installers who value fast service, predictable trip behavior, and compatibility with existing Siemens panel systems. Whether you're upgrading an older panel, stocking a service truck, or building a new installation, the Siemens Q140 40A breaker delivers reliable protection with straightforward replacement. Purchase with confidence from AmpState and keep your electrical system safe and compliant.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355153780898,"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_20f2acea-939a-4366-9223-6340f7d2ede3.png?v=1764689678","url":"https:\/\/www.ampstate.com\/products\/siemens-q140-40a-120v-1-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}