{"product_id":"general-electric-thjk436400wl-circuit-breaker","title":"General Electric | THJK436400WL | Circuit Breaker | 400A | 3-Pole | 600V | 35kA","description":"\u003cdiv\u003e\n\u003cp\u003eThe General Electric THJK436400WL circuit breaker is a rugged, industrial-grade protection device designed for demanding 3-phase electrical systems. With a 400A rating, 3-pole configuration, and a 600V maximum operating voltage, this breaker delivers reliable overcurrent protection in retrofit, maintenance, and replacement projects where exact specifications matter. Its 35kA interrupting capacity provides a robust safety margin for industrial workloads and critical equipment.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\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 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInterrupting rating:\u003c\/strong\u003e 35kA\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number reference:\u003c\/strong\u003e THJK436400WL\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this GE circuit breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrong precise compatibility:\u003e The THJK436400WL is specifically identified for matching panels and configurations requiring a 3-pole, 400A, 600V protective device. Always use the part number as the best reference for compatibility.\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDesigned for retrofit and replacement:\u003c\/strong\u003e Ideal when upgrading existing installations or replacing aging breakers without compromising system protection levels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh fault current handling:\u003c\/strong\u003e 35kA interrupting capacity helps contain faults quickly and protect downstream equipment, wiring, and operators.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConsistent GE performance:\u003c\/strong\u003e Built to GE engineering standards, ensuring predictable trip characteristics and reliable operation in harsh industrial environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and practical applications\u003c\/h3\u003e\n\u003cp\u003eThis 400A, 3-pole GE breaker is well-suited for main distribution panels in manufacturing lines, processing plants, and large commercial or industrial facilities where a triple-phase protection device is required. It’s a solid choice for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpgrading legacy 3-phase distribution circuits to meet current safety and capacity needs\u003c\/li\u003e \u003cli\u003eReplacing failed or obsolete breakers in GE-compatible panels\u003c\/li\u003e \u003cli\u003eMaintenance shutdowns where precise spec-matching reduces panel downtime\u003c\/li\u003e \u003cli\u003eNew installations that follow GE system design standards and part labeling conventions\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eFit, verification, and installation tips\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, verify that the THJK436400WL matches the panel schedule and rating requirements of your equipment. The part number is the most reliable reference for compatibility, so cross-check it against your panel manufacturer’s documentation. If upgrading from an older device, ensure any auxiliary components (busbars, mounting kits, or trip units) align with this 3-pole 400A 600V breaker to avoid fit issues.\u003c\/p\u003e \u003cp\u003eFor best results, work with a qualified electrician familiar with GE protection devices and live-load safety protocols. Proper installation ensures accurate tripping, stable operation, and maximum protection for downstream circuits and connected machinery.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":46424764776610,"sku":"THJK436400WL","price":12269.0,"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\/general-electric-thjk436400wl-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}