{"product_id":"eaton-ghb3045i-circuit-breaker","title":"Eaton | GHB3045I | Circuit Breaker | 45A | 3-Pole | 277V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton GHB3045I circuit breaker is a purpose-built protection solution for three‑phase electrical systems operating at 277V. With a 45A rating and 3-pole design, this unit is engineered for reliable, field-ready maintenance, retrofit, and replacement where exact specifications matter.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 45A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles\u003c\/strong\u003e: 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 277V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number\u003c\/strong\u003e: GHB3045I — use this as the best reference for compatibility\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy it matters\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eThree‑phase protection for commercial and industrial panels that run on 277V, ensuring proper coordination with other breakers and safely interrupting fault currents.\u003c\/li\u003e \u003cli\u003eDesigned for maintenance, retrofit, and replacement scenarios where you need a precise match to existing specs and panel configurations.\u003c\/li\u003e \u003cli\u003eRely on the part number as the most reliable guide to compatibility, reducing the risk of mismatched replacements in legacy or specialized systems.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or refurbishing commercial electrical panels that supply 277V three‑phase equipment.\u003c\/li\u003e \u003cli\u003eReplacements in plants, data centers, or facilities with distributed 277V circuits requiring 45A protection.\u003c\/li\u003e \u003cli\u003eEmergency or planned maintenance where quick, accurate part reference minimizes downtime and labeling changes.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat sets this Eaton breaker apart\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eDesigned to integrate smoothly with Eaton’s system architecture, helping maintain consistent trip characteristics and electrical performance within compatible panel environments.\u003c\/li\u003e \u003cli\u003eClear, specification-driven fit guidance: confirm the exact fit and ratings before ordering to ensure seamless substitution in your existing setup.\u003c\/li\u003e \u003cli\u003ePractical for technicians and facilities teams who rely on a dependable, spec-accurate component to keep critical loads protected.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical tips for installation and care\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eBefore purchasing, verify that the panel labeling and service entrance wiring align with 277V, 3‑phase operation and that the 45A rating matches your protection needs.\u003c\/li\u003e \u003cli\u003eHave a qualified electrician review the panel’s compatibility and layout to ensure correct mounting, clearance, and trip setting coordination.\u003c\/li\u003e \u003cli\u003eKeep the exact part number (GHB3045I) as the primary reference during ordering to minimize compatibility risks across generations of Eaton equipment.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor maintenance teams and facilities engineers, the Eaton GHB3045I delivers a precise, dependable solution for safeguarding 277V three‑phase circuits. Its focused specs and compatibility guidance help you execute efficient replacements and dependable retrofits with confidence.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46426422345890,"sku":"GHB3045I","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/eaton-ghb3045i-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}