{"product_id":"eaton-140d777g01","title":"Eaton 140D777G01 800A 3-Pole Circuit Breaker Potential Transformer","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton \u003cstrong\u003e140D777G01\u003c\/strong\u003e is a high-capacity \u003cstrong\u003e800 A\u003c\/strong\u003e, \u003cstrong\u003e3-Pole Circuit Breaker\u003c\/strong\u003e with integrated potential transformer functionality designed to protect, meter, and optimize power delivery in demanding electrical systems. Built for reliability and precise protection, this unit helps you keep critical loads energized while simplifying integration with protection relays and metering equipment.\u003c\/p\u003e \u003ch2\u003eKey features that matter in real-world systems\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e800 A current rating\u003c\/strong\u003e handles heavy feeders and high-demand circuits without frequent tripping, reducing nuisance interruptions in essential services.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole protection\u003c\/strong\u003e ensures synchronized disconnection across all phases, improving fault clearance and safety for three-phase power distribution.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIntegrated potential transformer capability\u003c\/strong\u003e provides scaled voltage signals for metering and protection relays, enabling accurate monitoring without adding external components.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStreamlined panel integration\u003c\/strong\u003e designed for compatibility with Eaton panelboards and protection schemes, helping to simplify installation and maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable, field-reliable design\u003c\/strong\u003e built to withstand industrial environments, delivering consistent performance over time.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this model adds measurable value\u003c\/h2\u003e\n\u003cp\u003eUnlike standard breakers, the \u003cem\u003e140D777G01\u003c\/em\u003e combines robust overcurrent protection with a built-in pathway for metering signals. This means faster fault identification, better coordination with relays, and more accurate energy monitoring for facilities managers. The integrated approach reduces panel footprint and minimizes the need for extra components, which can lower installation complexity and total cost of ownership.\u003c\/p\u003e \u003ch2\u003eIdeal applications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eIndustrial facilities with large feeders requiring dependable 3-phase protection and precise metering\u003c\/li\u003e \u003cli\u003eData centers and enterprise data rooms where uptime and accurate power monitoring are critical\u003c\/li\u003e \u003cli\u003eCommercial buildings with centralized distribution that demand robust protection and streamlined diagnostics\u003c\/li\u003e \u003cli\u003eReplacement or upgrade projects that need the exact Eaton 140D777G01 specifications to maintain system compatibility\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation, compatibility, and tips\u003c\/h2\u003e\n\u003cp\u003ePartnered with Eaton’s ecosystem, this 140D777G01 unit is designed to slot into existing 3-pole configurations while delivering enhanced protection and measurement capabilities. When installing, follow standard safety procedures and the Eaton installation guidelines to ensure proper torque, alignment, and clearances. Use this model where both protective performance and metering compatibility are priorities, so you can monitor current flows and voltage signals with confidence and respond to faults swiftly.\u003c\/p\u003e \u003cp\u003eUpgrade or specify this part for projects requiring a reliable, metering-friendly 800 A, 3-pole protection solution. The \u003cstrong\u003e140D777G01\u003c\/strong\u003e is the right choice when you need a durable, purpose-built breaker with an integrated transformer pathway to support accurate measurement and protection coordination across your power system.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46423659348130,"sku":"140D777G01","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-140d777g01-800a-3-pole-circuit-breaker-potential-transformer-315.webp?v=1789323836","url":"https:\/\/www.ampstate.com\/products\/eaton-140d777g01","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}