{"product_id":"eaton-ghb3030i-circuit-breaker","title":"Eaton | GHB3030I | Circuit Breaker | 30A | 3-Pole | 277V","description":"\u003cdiv\u003e\n\u003cp\u003eDiscover the Eaton GHB3030I—an authoritative 30-amp, 3-pole circuit breaker designed for 277-volt distribution. Built for maintenance, retrofit, and replacement projects, this breaker ensures you can restore or upgrade critical 3‑phase circuits with exacting compatibility and reliable protection.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 30A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePole configuration:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 277V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e GHB3030I\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant note:\u003c\/strong\u003e Confirm fit and ratings before ordering. The part number is the best reference for compatibility with your panel and system.\u003c\/p\u003e \u003ch2\u003eWhy this matters for your system\u003c\/h2\u003e\n\u003cp\u003eThe Eaton GHB3030I is purpose-built for three-phase, 277V applications, common in commercial buildings and lighting or equipment feeders. With a precise 30A rating, it provides targeted overcurrent protection where you need it most, helping prevent damage to wiring and connected loads while maintaining system reliability during maintenance or upgrades.\u003c\/p\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMaintaining or upgrading existing Eaton panels that require a GHB3030I-compatible 30A, 3-pole, 277V breaker.\u003c\/li\u003e \u003cli\u003eRetrofit projects where exact spec matching ensures seamless replacement without panel reconfigurations.\u003c\/li\u003e \u003cli\u003eReplacement of worn or failed breakers in three-phase 277V distribution circuits, such as commercial lighting or motor feeders.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and practical considerations\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eAlways shut off power and follow proper lockout\/tagout procedures before servicing the panel.\u003c\/li\u003e \u003cli\u003eVerify the panel’s required amperage, voltage, and pole configuration to ensure a precise fit with the GHB3030I.\u003c\/li\u003e \u003cli\u003eInstall using manufacturer-recommended torque specifications and mounting procedures for secure operation and reliable tripping performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eDistinctive value\u003c\/h2\u003e\n\u003cp\u003eUnlike generic substitutes, the Eaton GHB3030I is a deliberate, exact-match solution for 3-pole 277V circuits. Its 30A rating aligns with typical protection needs in commercial electrical environments, and its part-number-driven compatibility minimizes the risk of mis-match during maintenance or retrofit projects. When you choose GHB3030I, you’re prioritizing dependable protection that aligns with your existing Eaton infrastructure and installation standards.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46427374583970,"sku":"GHB3030I","price":1562.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-ghb3030i-circuit-breaker-30a-3-pole-277v-566.webp?v=1789711276","url":"https:\/\/www.ampstate.com\/products\/eaton-ghb3030i-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}