{"product_id":"siemens-cqd150-50a-277v-1-pole-circuit-breaker","title":"Siemens CQD150 - 50 A, 277 V, 1-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens CQD150 — a compact, reliable 50 A, 277 V, 1-pole molded case circuit breaker designed to safeguard branch circuits in panelboards and loadcenters. Built for dependable overcurrent and short-circuit protection, this unit helps keep electrical systems on cue and prevent damage to wiring and equipment.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded-case design\u003c\/strong\u003e maximizes panel space, making it easier to fit additional circuits in tight panels without sacrificing protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection performance across a range of temperatures and load conditions, reducing nuisance trips and ensuring consistent protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e designed to work seamlessly with matching Siemens OEM load centers and panelboards, simplifying selection and installation for upgrades or replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments where reliable single-pole protection is needed.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat problems does it solve?\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePrevents damage from overloaded or short-circuited single-leg circuits by interrupting excessive current at 50 A.\u003c\/li\u003e \u003cli\u003eHelps maintain safe operation in panelboards and loadcenters by providing predictable, trip-time behavior under varying electrical loads.\u003c\/li\u003e \u003cli\u003eFacilitates efficient panel design with a space-saving form factor that leaves room for essential circuits in multifunction installations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecs at a glance\u003c\/h3\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 CQD150\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 50 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 277 V\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 \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or expanding panelboards in commercial spaces with 277 V lighting or power distribution.\u003c\/li\u003e \u003cli\u003eInstalling in residential settings that rely on Siemens panel systems for reliable single-pole protection.\u003c\/li\u003e \u003cli\u003eLight industrial applications requiring compact protection for individual branch circuits while preserving panel space.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the CQD150, you gain a dependable, space-efficient solution that pairs precise protection with straightforward compatibility. If you’re stocking or upgrading Siemens panelboards and loadcenters, this 1-pole 50 A breaker helps you maintain safe, efficient electrical distribution across a variety of settings.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349782384802,"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_4cf50f76-7a39-4e78-9895-ca2ffbfabf8e.png?v=1764156526","url":"https:\/\/www.ampstate.com\/products\/siemens-cqd150-50a-277v-1-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}