{"product_id":"general-electric-tj400j-circuit-breaker","title":"General Electric | TJ400J | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003ch2\u003eGeneral Electric TJ400J Circuit Breaker — 400A, 3-Pole, 600V\u003c\/h2\u003e\n\u003cp\u003eMeet the trusted protection your three-phase electrical system deserves. The General Electric \u003cstrong\u003eTJ400J\u003c\/strong\u003e circuit breaker is designed for maintenance, retrofit, and replacement projects where exact specifications matter. Built to handle demanding industrial or commercial environments, this 3-pole unit provides reliable, coordinated interruption across all phases, helping safeguard equipment and personnel.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePole configuration\u003c\/strong\u003e: 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating\u003c\/strong\u003e: 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference\u003c\/strong\u003e: TJ400J — best compatibility reference for your setup\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this exact part matters\u003c\/strong\u003e: When your panels, bus assemblies, or switchgear were specified around the TJ400J, using the exact TJ400J part ensures mechanical fit, proper trip behavior, and alignment with the original protection scheme. It minimizes downtime and avoids compatibility surprises during replacement or retrofits.\u003c\/p\u003e \u003ch3\u003eWho should consider this breaker\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eFacilities managers, electricians, and maintenance teams working with three-phase distribution who need a precise 400A, 3-pole, 600V device.\u003c\/li\u003e \u003cli\u003eProjects involving panel retrofits or replacements where the TJ400J is the recommended reference for compatibility.\u003c\/li\u003e \u003cli\u003eSituations requiring quick, reliable replacement to restore protective coordination in industrial equipment, manufacturing lines, or large commercial systems.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and practical scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed breaker in existing GE panels that specify the TJ400J for proper fitment and tripping characteristics.\u003c\/li\u003e \u003cli\u003eUpgrading protection in a three-phase distribution path where a 400A capacity is required to safely handle load growth.\u003c\/li\u003e \u003cli\u003eRetrofit projects aiming to maintain consistent protection curves and electrical clearances with the original gear.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation notes and best practices\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways \u003cstrong\u003econfirm fit and ratings\u003c\/strong\u003e before ordering to ensure compatibility with your panel or switchgear.\u003c\/li\u003e \u003cli\u003eMaintain proper lockout\/tagout procedures during replacement to protect personnel and equipment.\u003c\/li\u003e \u003cli\u003eKeep a spare TJ400J on hand for planned maintenance or unplanned outages to minimize downtime.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eCompared to alternatives, the TJ400J delivers exact-match compatibility for systems designed around this part number, reducing the guesswork in selection and helping you maintain a robust, reliable protection scheme. For installations and repairs where spec accuracy matters most, choose the General Electric TJ400J — a dependable choice for 400A, 3-pole, 600V protection. \u003c\/p\u003e\n\u003c\/div\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":46424469209250,"sku":"TJ400J","price":1419.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/general-electric-tj400j-circuit-breaker-400a-3-pole-600v-187.webp?v=1789365553","url":"https:\/\/www.ampstate.com\/products\/general-electric-tj400j-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}