{"product_id":"siemens-cqd160-60a-277v-1-pole-circuit-breaker","title":"Siemens CQD160 - 60 A, 277 V, 1-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens CQD160 — a dependable 60A, 277V, 1-Pole molded case circuit breaker designed to protect every branch of your electrical system. Built for panelboards and loadcenters, this breaker delivers precise, reliable overcurrent and short-circuit protection where it matters most.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy engineers and electricians choose CQD160\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded-case design\u003c\/strong\u003e maximizes panel space, making it easier to fit multiple protection devices in tighter enclosures without compromising performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e offers stable, repeatable protection—collects accurate overload data and responds quickly to short circuits, reducing nuisance trips while maintaining safety.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e designed to work with matching Siemens OEM load centers and panelboards, ensuring a seamless fit and consistent trip characteristics.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e277V suitability\u003c\/strong\u003e ideal for commercial lighting and distribution circuits where line-to-neutral voltages commonly run at 277V, plus standard 60A branch-circuit protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e appropriate for residential, commercial, and light industrial environments where reliable branch-circuit protection is critical.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e CQD160\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 60A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 277V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 1\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\u003eWho and where it fits best\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eElectricians upgrading or expanding panelboards in commercial spaces with 277V lighting or power distribution needs.\u003c\/li\u003e \u003cli\u003eResidential installations requiring dedicated protection for specific branch circuits within Siemens-compatible panels.\u003c\/li\u003e \u003cli\u003eLight industrial settings where compact protection devices help maximize panel density without sacrificing safety.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical use and installation tips\u003c\/h2\u003e \u003cul\u003e \u003cli\u003ePair the CQD160 with Siemens OEM load centers and panelboards to ensure optimal fit and trip performance.\u003c\/li\u003e \u003cli\u003eVerify that the protected circuit’s voltage and load align with the 277V, 60A rating to prevent nuisance trips and maintain system reliability.\u003c\/li\u003e \u003cli\u003eFollow standard electrical code practices for mounting, wiring, and torque specifications to ensure a secure, long-lasting installation.\u003c\/li\u003e \u003cli\u003eConsider this 1-pole solution when only a single hot conductor needs protection, preserving space for other devices in the panel.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned to deliver predictable protection where reliability matters—Siemens CQD160 is a smart, space-efficient choice for panelboards and loadcenters that demand consistent performance, durability, and compatibility with Siemens’ own electrical ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349782450338,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-cqd160-60-a-277-v-1-pole-circuit-breaker-ampstate-breakers-202.webp?v=1788724140","url":"https:\/\/www.ampstate.com\/products\/siemens-cqd160-60a-277v-1-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}