{"product_id":"eaton-ld3400x-400a-600v-3-pole-bolt-on-circuit-breaker","title":"Eaton LD3400X - 400 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton LD3400X—a 400A, 600V, 3-Pole Bolt-On Molded Case Circuit Breaker built to protect your panelboards and loadcenters with unwavering reliability. This unit is designed for dependable branch circuit overcurrent and short-circuit protection, delivering durable performance in demanding electrical environments.\u003c\/p\u003e \u003ch2\u003eWhy the LD3400X stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-on mounting\u003c\/strong\u003e: provides a secure, vibration-resistant bus connection that stays tight and reliable in panels subject to movement or vibration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e: delivers stable, repeatable protection by combining timely short-circuit response with dependable overload protection, reducing nuisance trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e: ideal for 3-phase distribution up to 600V, enabling balanced protection across multiple feeders in commercial or light industrial setups.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e400A \/ 600V ratings\u003c\/strong\u003e: rugged capacity to safeguard high-current branch circuits in residential, commercial, and light industrial applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e: engineered to mate with matching OEM loadcenters and panelboards for straightforward replacements and proven performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications\u003c\/h3\u003e\n\u003cp\u003eUse the LD3400X to shield feeders and branch circuits in a variety of settings, including:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eResidential or multi-tenant commercial panels requiring solid 3-phase protection\u003c\/li\u003e \u003cli\u003eCommercial distribution panels and light industrial control panels\u003c\/li\u003e \u003cli\u003ePanelboard retrofits or upgrades where a durable bolt-on solution is preferred\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Eaton\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LD3400X\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 400A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical tips for installation and use\u003c\/h3\u003e\n\u003cp\u003eBefore installing, verify that your panelboard accepts a bolt-on 3-pole breaker and that the LD3400X’s OEM compatibility matches the existing loadcenter. The bolt-on design helps maintain a solid mechanical and electrical connection, which supports long-term reliability in environments where panels may experience movement or vibration. Use this breaker for high-current, three-phase protection needs to keep critical equipment safeguarded and running smoothly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349632110754,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-ld3400x-400-a-600-v-3-pole-bolt-on-circuit-breaker-ampstate-253.webp?v=1788696429","url":"https:\/\/www.ampstate.com\/products\/eaton-ld3400x-400a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}