{"product_id":"xjl434400-circuit-breaker","title":"XJL434400 | Circuit Breaker | 400A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the XJL434400—a rugged bolt-on circuit breaker built for demanding industrial environments. With a 400A rating across a 3-pole, 600V configuration, this unit delivers reliable overcurrent protection for large feeders and motor circuits in switchgear, panels, and retrofit projects. Designed for maintenance, retrofit, and replacement workloads where precise specifications matter, it’s engineered to slot into matching systems with confidence.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\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\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e XJL434400\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest reference for compatibility:\u003c\/strong\u003e Use the part number to ensure a precise fit in matching panels and gear\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this model stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a robust, vibration-resistant installation ideal for retrofit work and panels with space constraints.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-phase protection\u003c\/strong\u003e ensures synchronized interruption across all poles, safeguarding multi-motor and three-phase feeder circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustry-grade compatibility\u003c\/strong\u003e designed for 600V systems and applications that demand solid, field-proven performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear reference point\u003c\/strong\u003e the XJL434400 part number is the most reliable way to verify compatibility with your existing gear.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRetrofit projects in existing industrial panels where bolt-on breakers are preferred for quick serviceability\u003c\/li\u003e \u003cli\u003eReplacements for worn or obsolete breakers in 600V, three-phase distribution systems\u003c\/li\u003e \u003cli\u003eLarge motor feeders and high-current distribution lines in manufacturing facilities\u003c\/li\u003e \u003cli\u003eMaintenance-grade upgrades that standardize components across a facility’s electrical network\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility \u0026amp; installation tips\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings against your system specifications—the part number (XJL434400) is the best compatibility reference. Ensure your enclosure and bus-bar configuration align with bolt-on breakers and that the panel supports a 3-pole, 600V design. Keeping a matching spare on hand can reduce downtime during maintenance windows and streamline panel upgrades.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46426693009570,"sku":"XJL434400","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/xjl434400-circuit-breaker-400a-3-pole-600v-bolt-584.webp?v=1789604601","url":"https:\/\/www.ampstate.com\/products\/xjl434400-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}