{"product_id":"eaton-cutler-hammer-lt3400t-400a-3p-600v-circuit-breaker","title":"Eaton Cutler-Hammer LT3400T 400A 3P 600V Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton Cutler-Hammer LT3400T 400A 3P 600V Circuit Breaker — a purpose-built solution for reliable circuit protection in panelboards, load centers, and electrical distribution networks. Crafted for everyday electrical work, this unit is designed to stand up to retrofit projects and routine maintenance where keeping the exact part number matters for stocking and compatibility.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Eaton Cutler-Hammer\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LT3400T\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3 (three-pole)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Panelboards, load centers, and electrical distribution systems\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this LT3400T stands out\u003c\/h3\u003e\n\u003cp\u003eResidential or industrial electrical systems depend on precise protection from faults and overloads. The LT3400T is purpose-built to deliver dependable protection in 3-phase configurations up to 600V, with a robust 400A capacity that accommodates substantial modern loads while maintaining clear, actionable protection behavior. Its three-pole design is ideal for balanced three-phase systems, helping prevent imbalances that can stress equipment and wiring.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrong retrofit projects:\u003e When installations require the exact LT3400T part number to match existing gear, this unit ensures seamless compatibility without reconfiguring bus layouts or protection schemes.\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong maintenance planning:\u003e For facilities that rely on consistent part numbers in service inventories, the LT3400T simplifies ordering, stock management, and replacement workflows.\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong distribution:\u003e Suitable for panelboards and load centers that serve commercial or industrial loads, keeping protection aligned with 3-phase electrical distribution up to 600V.\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong system expansion:\u003e When expanding or upgrading to higher-current distribution paths, this 400A breaker provides a clear upgrade path within standard Eaton Cutler-Hammer configurations.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical considerations and compatibility\u003c\/h3\u003e\n\u003cp\u003eDesigned to integrate with standard electrical distribution equipment, the LT3400T is compatible with panelboard and load center architectures that support 3P, 400A protection at 600V. If you’re unsure about fit, AmpState offers assistance in matching part numbers and confirming compatibility to keep your project on track and your downtime to a minimum.\u003c\/p\u003e \u003ch3\u003eWhy choose AmpState for this breaker\u003c\/h3\u003e\n\u003cp\u003eAmpState carries the LT3400T, providing access to genuine Eaton Cutler-Hammer components. By choosing this source, you benefit from direct availability and straightforward support for part identification and compatibility questions, helping you complete installations or replacements with confidence.\u003c\/p\u003e \u003ch3\u003eQuick guidance for installation and best practices\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify system voltage and three-phase configuration before installation to ensure the 600V rating and 3-pole design match your distribution setup.\u003c\/li\u003e \u003cli\u003eWhen retrofitting, confirm that the LT3400T’s physical dimensions and bus connection points align with existing panelboard or load center infrastructure to prevent clearance or contact issues.\u003c\/li\u003e \u003cli\u003ePlan for maintenance cycles by documenting the exact part number (LT3400T) in your asset registry to simplify future replacements and reorders.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor engineers, electricians, and facility managers seeking dependable circuit protection with a clear path for retrofit and maintenance, the Eaton Cutler-Hammer LT3400T 400A 3P 600V Circuit Breaker delivers the right mix of capacity, three-phase protection, and compatibility. If you need help confirming fit or identifying the correct part for your specific panel, reach out to AmpState for expert guidance and fast, accurate support.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46411140825250,"sku":"LT3400T","price":5737.0,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/www.ampstate.com\/products\/eaton-cutler-hammer-lt3400t-400a-3p-600v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}