{"product_id":"siemens-shjd69300nt-circuit-breaker","title":"Siemens | SHJD69300NT | Circuit Breaker | 300A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens SHJD69300NT Circuit Breaker is a precise, ready-to-install solution for three‑phase power protection. Engineered for reliability in demanding environments, this 300A, 3‑pole unit delivers consistent overcurrent protection at voltages up to 600V, making it an ideal replacement or retrofit option for Siemens panel systems and compatible electrical installations.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\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\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e SHJD69300NT\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho should consider this breaker\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eElectricians and maintenance teams performing \u003cstrong\u003emaintenance, retrofit, and replacement\u003c\/strong\u003e on three‑phase electrical distributions\u003c\/li\u003e \u003cli\u003eFacility managers upgrading panel protection while maintaining Siemens compatibility\u003c\/li\u003e \u003cli\u003eProject teams equipping service entrances or distribution panels that require exactly a 300A, 3‑pole, 600V protection device\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat makes this model unique\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact part reference\u003c\/strong\u003e: The SHJD69300NT is the best reference for compatibility, helping you avoid mismatches in panel fittings, bus bar alignment, and trip characteristics.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree‑phase protection\u003c\/strong\u003e: With 3 poles, this breaker ensures balanced shutdown across all phases, which is essential for maintaining system stability in industrial and commercial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current capability\u003c\/strong\u003e: A solid 300A rating supports substantial feeders and service panels, reducing the need for upsizing components in many retrofit scenarios.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWide application range\u003c\/strong\u003e: Suitable for installations up to 600V, making it versatile for a variety of distribution boards and equipment rooms that rely on Siemens‑based protection schemes.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failing breaker in an existing Siemens panel to restore reliable three‑phase protection.\u003c\/li\u003e \u003cli\u003eUpgrading a service feeder or branch circuit that requires a robust 300A, three‑pole solution to support growing electrical loads.\u003c\/li\u003e \u003cli\u003eRetrofit projects where exact part matching minimizes downtime and preserves panel compatibility and labeling.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways \u003cstrong\u003econfirm fit and ratings before ordering\u003c\/strong\u003e—the notes emphasize that the part number is your best reference for compatibility.\u003c\/li\u003e \u003cli\u003eMatch the breaker to the panel’s documented requirements for three‑phase protection and bus connection geometry.\u003c\/li\u003e \u003cli\u003eConsult your panel documentation to ensure your distribution setup aligns with a 600V maximum rating and 3‑pole configuration.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned to meet the needs of professionals who demand precise, reliable overcurrent protection, the Siemens SHJD69300NT delivers a dependable replacement option that aligns with Siemens system standards. For projects that require exact part matching and robust three‑phase protection, this 300A, 3‑pole, 600V breaker is a straightforward, trusted choice.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46425631228066,"sku":"SHJD69300NT","price":10193.0,"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\/siemens-shjd69300nt-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}