{"product_id":"upg666-1-64-203-c-21","title":"Airpax UPG666-1-64-203-C-21 - 20A, 277VAC, Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eAirpax UPG666-1-64-203-C-21\u003c\/strong\u003e is a dependable 20A, 277VAC circuit breaker designed to protect electrical systems in demanding environments. Built for use in panelboards, switchboards, control panels, and OEM equipment, it delivers reliable overcurrent protection where uptime matters.\u003c\/p\u003e \u003cp\u003eKey specifications at a glance:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 20A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 277VAC\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBreaker type:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIdeal applications:\u003c\/strong\u003e panelboards, switchboards, control panels, and OEM equipment\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSuitable environments:\u003c\/strong\u003e industrial, commercial, and OEM installations requiring dependable protection in distribution panels and motor control centers\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this Airpax solution stands out: the 20A at 277VAC specification targets critical circuits in commercial buildings and industrial facilities, including lighting and power distribution, delivering predictable trip behavior and long-term reliability in daily operations. Its design supports safe operation across repetitive on\/off cycles, helping protect wiring and downstream components from overloads.\u003c\/p\u003e \u003cp\u003ePractical use cases include:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eProtecting feeders and branch circuits in distribution panels in manufacturing floors\u003c\/li\u003e \u003cli\u003eSecuring control circuits within machine panels and automation enclosures\u003c\/li\u003e \u003cli\u003eGuarding 277V lighting circuits in commercial facilities to prevent nuisance outages\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eInstallation and maintenance tips: install in accordance with applicable electrical codes and manufacturer guidelines, verify that the voltage and current ratings match your system, and ensure proper enclosure and wiring practices to maintain safe operation over time.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Airpax","offers":[{"title":"Default","offer_id":46390805790882,"sku":"UPG666-1-64-203-C-21","price":142.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/airpax-upg666-1-64-203-c-21-20a-277vac-circuit-breaker-306.webp?v=1788907755","url":"https:\/\/www.ampstate.com\/products\/upg666-1-64-203-c-21","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}