{"product_id":"eaton-ghqrd1030-30a-277v-1-pole-circuit-breaker","title":"Eaton GHQRD1030 30 Amp 277 Volt 1 Pole Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Eaton GHQRD1030 — a 30A, 277V, 1-pole molded case circuit breaker engineered to protect branch circuits in panelboards and loadcenters. Its compact molded-case design, paired with a thermal-magnetic trip unit, delivers dependable overcurrent and short-circuit protection while maximizing space in dense electrical panels.\u003c\/p\u003e \u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded-case design\u003c\/strong\u003e minimizes footprint so you can fit more circuits in modern, space-constrained panels without sacrificing protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e ensures stable, repeatable protection across a range of loads and temperatures, reducing nuisance trips and safeguarding wiring.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e30A, 277V, 1-pole\u003c\/strong\u003e configuration is ideal for single-branch circuits in commercial and light industrial environments that run on 277V lighting and equipment circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible compatibility\u003c\/strong\u003e works with matching Eaton panelboards and loadcenters to ensure proper fit, bus compatibility, and coordinated protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial settings where reliable branch-circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this breaker matters\u003c\/h2\u003e\n\u003cp\u003eThe GHQRD1030 targets real-world needs: protect wiring from overcurrent events, quickly interrupt fault conditions, and maintain panel organization in spaces where every inch counts. By pairing this breaker with the right Eaton loadcenter, you get predictable trip behavior, improved safety, and reduced maintenance due to fewer unexpected trips on 277V circuits such as commercial lighting, fans, and control circuits.\u003c\/p\u003e \u003ch2\u003eTechnical Details\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Eaton\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e GHQRD1030\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 30 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 \u003ch2\u003eApplications \u0026amp; Use Cases\u003c\/h2\u003e\n\u003cp\u003eIdeal for commercial and light industrial environments that utilize 277V circuits. Specific scenarios include:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eLighting and power distribution in office buildings, retail spaces, and warehouses\u003c\/li\u003e \u003cli\u003eHVAC and motor control circuits that run on 277V systems\u003c\/li\u003e \u003cli\u003ePanelboard configurations where space efficiency and reliable protection are critical\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation \u0026amp; Compatibility\u003c\/h2\u003e\n\u003cp\u003eTo ensure optimal performance, install the GHQRD1030 in compatible Eaton OEM loadcenters and panelboards. This alignment guarantees correct fit, bus mounting, and coordinated protection across the entire panel lineup. Always verify the panel’s compatibility and adhere to local codes and safety practices during installation.\u003c\/p\u003e \u003ch2\u003ePractical Insights\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eUse in matching Eaton systems to maintain consistent trip characteristics across multi-breaker panels.\u003c\/li\u003e \u003cli\u003eConsider pairing with other Eaton 277V devices in the same panel to simplify maintenance and improve circuit coordination.\u003c\/li\u003e \u003cli\u003eStore spare breakers in their original packaging and label circuits clearly to speed future service or replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349592166562,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-ghqrd1030-30-a-277-v-1-pole-circuit-breaker-ampstate-breakers-884.webp?v=1788688366","url":"https:\/\/www.ampstate.com\/products\/eaton-ghqrd1030-30a-277v-1-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}