{"product_id":"eaton-md3300-circuit-breaker","title":"Eaton | MD3300 | Circuit Breaker | 300A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eProtect your three-phase 600V electrical systems with confidence using the Eaton MD3300 300A, 3-Pole Circuit Breaker. Designed for reliability in maintenance, retrofit, and replacement projects, this unit ensures your Eaton-compatible panels and switchgear continue to operate with precise protection when it matters most.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 300A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole (three-phase protection)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSystem voltage:\u003c\/strong\u003e up to 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReference part number:\u003c\/strong\u003e MD3300\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy choose the MD3300 for your installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact fit and compatibility:\u003c\/strong\u003e The MD3300 is the best compatibility reference for Eaton panels, switchgear, and distribution systems that require this specific device. Use the part number MD3300 to verify you’re selecting the correct replacement or retrofit component.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance, retrofit, and replacement ready:\u003c\/strong\u003e Whether upgrading an older panel, refreshing a service fleet, or replacing a failed breaker, this 3-pole, 300A unit is sized for robust three-phase protection in demanding environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEngineered for Eaton ecosystems:\u003c\/strong\u003e Built to align with Eaton’s design standards, ensuring straightforward installation, consistent performance, and reliable electrical protection in compatible equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear, practical use in real-world settings:\u003c\/strong\u003e Ideal for industrial distribution panels, control cabinets, and service entrances where a 300A, 3-Pole breaker rated for 600V is specified.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eHow this fits into your project planning\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eUse case scenarios:\u003c\/strong\u003e Retrofit projects to restore full protection in legacy panels, stock replacement for maintenance fleets, or new installations in 600V three-phase circuits needing dependable 300A protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInstallation considerations:\u003c\/strong\u003e Before ordering, verify that your equipment requires an MD3300-series breaker and that the ratings (300A, 3-Pole, 600V) match your system requirements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBuying with confidence:\u003c\/strong\u003e The part number MD3300 is the most reliable reference for compatibility—pair it with the exact Eaton enclosure or panel specification to minimize fit issues.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eEquip your electrical distribution with a trusted Eaton solution tailored for precise three-phase protection. The MD3300 delivers the disciplined performance you expect in industrial environments, backed by Eaton’s engineering heritage and a clear path to smooth retrofits and replacements. Important note: confirm fit and ratings before ordering—the MD3300 part number is your best reference for compatibility.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46426442989730,"sku":"MD3300","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-md3300-circuit-breaker-300a-3-pole-600v-808.webp?v=1789578315","url":"https:\/\/www.ampstate.com\/products\/eaton-md3300-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}