{"product_id":"siemens-q21540ct-40a-2p-circuit-breaker","title":"Siemens Q21540CT 40A 2P Circuit Breaker, Plug-On | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens Q21540CT 40A 2P Plug-On Circuit Breaker — a precise, dependable safeguard for your electrical distribution. Built to integrate with panelboards and load centers, this two-pole breaker delivers consistent overcurrent protection exactly where you need it, helping you prevent nuisance trips and protect vital circuits.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications at a glance\u003c\/strong\u003e\u003c\/p\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 Q21540CT\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 2\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Plug-On\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhat makes this breaker stand out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eDirect part-number match for maintenance and provisioning\u003c\/strong\u003e — designed for setups that require exact Siemens components, ensuring compatibility and reducing search time in spare inventories.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePlug-On design\u003c\/strong\u003e — streamlined installation into compatible panelboards and load centers, enabling quicker replacements with solid, reliable bus-bar connections.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliability for distributed power\u003c\/strong\u003e — 40 A protection for circuits that demand dependable overcurrent protection without compromising panel space or performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmpState availability\u003c\/strong\u003e — sourced through AmpState, making it easier to secure this specific part when building, repairing, or stocking critical electrical systems.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal use scenarios\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePanel builders integrating Siemens-compatible breakers into new installations or retrofit projects.\u003c\/li\u003e \u003cli\u003eMaintenance teams performing routine replacements or stocking spare inventory for quick, exact-part repairs.\u003c\/li\u003e \u003cli\u003eElectrical distributors and service providers needing a reliable, two-pole 40 A solution for 120\/240 V distribution circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eHow to verify compatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNeed help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.\u003c\/p\u003e \u003cp\u003eChoose the Siemens Q21540CT 40A 2P Plug-On Circuit Breaker when you require precise part-number accuracy, straightforward installation, and dependable protection for your electrical distribution network. Available now from AmpState.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46410860396706,"sku":"Q21540CT","price":166.0,"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-q21540ct-40a-2p-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}