{"product_id":"schneider-electric-ljl36400cu33x-circuit-breaker","title":"Schneider Electric | LJL36400CU33X | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003eSchneider Electric LJL36400CU33X Circuit Breaker delivers dependable overcurrent protection for demanding electrical systems, combining high amperage handling with solid three-pole operation. With a 400A rating and a 600V maximum, this breaker is built to guard three-phase circuits in industrial and commercial environments where reliable shutdown is essential. Key details\n- Amperage: 400A\n- Poles: 3-Pole\n- Voltage: 600V\n- Part number: LJL36400CU33X\n- Brand: Schneider Electric Why this part matters\n- Exact compatibility matters: the part number LJL36400CU33X is the best reference when sourcing a replacement, retrofit, or maintenance unit to ensure a precise fit with your panel and bus configuration.\n- Reliable three-phase protection: designed to interrupt current across three phases, helping to prevent fault propagation and protect downstream equipment.\n- Suitability for retrofit and replacement: ideal for updating aging installations or restoring critical service where matching specs is required, minimizing integration issues and downtime. Use cases and scenarios\n- Maintenance projects: swap in the LJL36400CU33X to maintain uninterrupted service in existing three-phase distributions without changing panel infrastructure.\n- Retrofit upgrades: upgrade protection settings in upgrading facilities that operate on up to 600V, ensuring continued compatibility with current electrical standards.\n- Replacement needs: replacement for panels or systems previously configured for a 400A, 3-pole, 600V protective device, preserving electrical safety and trip characteristics. Who this is ideal for\n- Facility engineers and maintenance technicians managing industrial or commercial power distribution.\n- Electrical distributors and system integrators tasked with precise, drop-in replacements for Schneider Electric-compatible panels.\n- OEMs and panel builders seeking reliable, manufacturer-aligned components to maintain warranty and performance expectations. Practical considerations\n- Before ordering, verify fit and ratings against your existing panel catalog or drawings to ensure seamless integration.\n- Keep the exact part number handy for future service needs and inventory management, since substitutions can affect trip curves and enclosure fit.\n- Use this breaker in applications where up to 600V systems are in operation and 400A protection is required for robust circuit defenses. If you’re replacing or retrofitting a three-phase system that demands dependable protection with exact specifications, the Schneider Electric LJL36400CU33X circuit breaker is a precise, durable choice that supports safe, continuous operation while aligning with Schneider Electric’s trusted engineering.\u003c\/div\u003e","brand":"Schneider Electric","offers":[{"title":"Default Title","offer_id":46427457421474,"sku":"LJL36400CU33X","price":28346.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/schneider-electric-ljl36400cu33x-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}