{"product_id":"square-d-rjf36100u44a-circuit-breaker","title":"Square D | RJF36100U44A | Circuit Breaker | 1000A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D RJF36100U44A circuit breaker—a genuine Square D component engineered for heavy-duty 600V systems. With a 1000A rating and a 3-Pole configuration, this unit is built to protect demanding, three-phase circuits in industrial panels and power distribution setups. It’s specifically suited for maintenance, retrofit, and replacement projects where exact specifications matter.\u003c\/p\u003e \u003ch2\u003eKey Details\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 1000A\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\u003ePart number:\u003c\/strong\u003e RJF36100U44A\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy choose this RJF36100U44A in your system\u003c\/h2\u003e\n\u003cp\u003eThis is a genuine Square D part, designed to align with compatible Square D panels and enclosures. As the best reference for compatibility, the RJF36100U44A minimizes guesswork during installation and ensures reliable protection for your 1000A, 3-pole, 600V application. Use it for upcoming service work, panel upgrades, or new installations that require exact square-d design and fit.\u003c\/p\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMaintenance cycles on large, three-phase equipment operating at 600V.\u003c\/li\u003e \u003cli\u003eRetrofit or modernization projects that require a 1000A, 3-pole protection device.\u003c\/li\u003e \u003cli\u003eReplacement of aging circuit breakers within compatible Square D systems to maintain established electrical protection standards.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eImportant compatibility note\u003c\/h2\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings. The part number RJF36100U44A is the best reference to ensure you select the correct device for your enclosure and system requirements.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426662404258,"sku":"RJF36100U44A","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-rjf36100u44a-circuit-breaker-1000a-3-pole-600v-458.webp?v=1789601977","url":"https:\/\/www.ampstate.com\/products\/square-d-rjf36100u44a-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}