{"product_id":"square-d-fil360401021-circuit-breaker","title":"Square D | FIL360401021 | Circuit Breaker | 40A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D FIL360401021 circuit breaker delivers reliable, three‑phase protection for demanding 600V electrical systems. Designed for maintenance, retrofit, and replacement projects, this 40A, 3‑pole unit helps keep industrial loads—motors, drives, and heavy equipment—safe and properly isolated when faults occur. Rely on the exact part number FIL360401021 as your primary compatibility reference to ensure a precise fit and ratings match.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\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\u003eApplication:\u003c\/strong\u003e Three‑phase circuit protection for industrial panels and equipment\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy a 3‑pole, 40A, 600V configuration matters\u003c\/h3\u003e\n\u003cp\u003eIn three‑phase systems, a 3‑pole breaker interrupts all conductors simultaneously, delivering balanced protection across the circuit. The 40A rating is well-suited for medium‑load industrial panels and motor circuits, while the 600V rating accommodates a wide range of distribution setups found in manufacturing floors and commercial facilities.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance, retrofit, or replacement in existing Square D panels that require 3‑phase, 40A protection\u003c\/li\u003e \u003cli\u003eUpgrading or consolidating protection for industrial motors, drives, and equipment operating in 600V networks\u003c\/li\u003e \u003cli\u003eInventory staple for electrical contractors and facilities teams managing multi‑phase distribution\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eImportant compatibility note\u003c\/h3\u003e\n\u003cp\u003eBefore placing an order, confirm fit and ratings for your specific panel or equipment. The part number FIL360401021 is the most reliable reference to ensure correct interrupting capacity, mounting, and trip characteristics.\u003c\/p\u003e \u003ch3\u003ePractical considerations for installation and upkeep\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUse the exact part number when cataloging replacements to prevent mismatches\u003c\/li\u003e \u003cli\u003eVerify panel labeling and mounting arrangement to ensure proper fit within your enclosure\u003c\/li\u003e \u003cli\u003eMaintain spare units on site to minimize downtime in critical circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426372243618,"sku":"FIL360401021","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-fil360401021-circuit-breaker-40a-3-pole-600v-402.webp?v=1789565478","url":"https:\/\/www.ampstate.com\/products\/square-d-fil360401021-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}