{"product_id":"eaton-ldb3400x-circuit-breaker","title":"Eaton | LDB3400X | Circuit Breaker | 400A | 3-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton LDB3400X Circuit Breaker — a purpose-built solution for heavy-duty 3-phase power distribution. With a 400A rating, a 3-Pole configuration, and a 240V operating footprint, it’s engineered for maintenance, retrofit, and replacement projects where exact specifications matter and uptime is critical.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 400A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles\u003c\/strong\u003e: 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReference\u003c\/strong\u003e: Part number LDB3400X is your best guide to compatibility\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eNotes: Confirm fit and ratings before ordering. The part number is the best reference for compatibility with Eaton panels and other equipment designed for 400A, 3-phase service.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eTriple-phase protection\u003c\/strong\u003e: The 3-Pole design ensures all three conductors trip together, safeguarding against unbalanced loads and enhancing safety in 3-phase circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCommercial and industrial readiness\u003c\/strong\u003e: Ideal for feeders and main distribution in warehouses, factories, data centers, and large offices that rely on 240V 3-phase infrastructure.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStreamlined retrofit\u003c\/strong\u003e: Replacing an aging breaker or upgrading an existing panel is smoother when you match the LDB3400X specification, reducing downtime and compatibility issues.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePrecise compatibility\u003c\/strong\u003e: Rely on the part number LDB3400X to verify fit; avoid guesswork in panel matching.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUse cases include retrofitting legacy 3-phase panels, upgrading to 400A service feeders, and performing safe maintenance in 3-phase 240V systems. This Eaton breaker is tailored for professionals who need reliable, code-compliant protection without sacrificing system performance.\u003c\/p\u003e \u003cp\u003eInstallation and safety should be handled by a licensed electrician. Verify that your panel is rated for 400A, 3-Pole, 240V operation and that the bus, mounting style, and termination method align with Eaton’s LDB3350-series family requirements. When in doubt, reference the exact part number LDB3400X to ensure a precise fit and dependable protection.\u003c\/p\u003e \u003cp\u003eChoose the Eaton LDB3400X for a precise, reliable solution that protects large, three-phase circuits and keeps your critical equipment safeguarded with accurate, compliant circuit protection.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46426443579554,"sku":"LDB3400X","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-ldb3400x-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}