{"product_id":"square-d-au500-500a-3p-600v-circuit-breaker","title":"Square D AU500 Circuit Breaker, 500A, 3-Pole, 600V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D AU500 Circuit Breaker is engineered for demanding industrial electrical service, maintenance, and replacement projects. With a 500 A rating, a 3-pole configuration, and a 600 V capacity, it delivers reliable protection for three‑phase power systems where downtime isn’t an option.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current, three-phase protection:\u003c\/strong\u003e 500 A amperage and a 3-pole design guard your distribution panels and feeders against overcurrent across all three phases.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600 V capability:\u003c\/strong\u003e Ready for a wide range of industrial loads and distribution networks, from manufacturing lines to large equipment motors.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTrusted Square D reliability:\u003c\/strong\u003e Built by a heritage brand known for rugged performance in harsh industrial environments, helping your systems stay protected in challenging conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEfficient compatibility verification:\u003c\/strong\u003e Use the part number AU500 to confirm fit with your panel, switchgear, or replacement plan, ensuring a seamless swap when service life ends or faults occur.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSimple, practical replacement option:\u003c\/strong\u003e Designed for straightforward replacement in existing installations that specify AU500, minimizing downtime during maintenance or upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eCompatibility and selection guidance\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart number first:\u003c\/strong\u003e Verify that AU500 matches the exact breaker specified for your equipment and application requirements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eElectrical specs at a glance:\u003c\/strong\u003e Ensure the system uses 3-phase power and that the working voltage does not exceed 600 V.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication fit:\u003c\/strong\u003e Confirm the breaker’s amperage rating aligns with your load profile and that your panel or switchgear supports a 3-pole unit of this type.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal use cases\u003c\/p\u003e \u003cul\u003e \u003cli\u003eNew installations in industrial facilities requiring robust three-phase protection.\u003c\/li\u003e \u003cli\u003eMaintenance outages and planned replacements for aging or failed breakers in manufacturing plants.\u003c\/li\u003e \u003cli\u003eMotor control centers and large distribution panels where reliable 500 A protection is essential.\u003c\/li\u003e \u003cli\u003eUpgrade projects where compatibility with Square D AU500 is specified by the equipment manufacturer.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters for your operation\u003c\/p\u003e \u003cul\u003e \u003cli\u003eStability under peak loads: Protect equipment and personnel by quickly interrupting fault currents in 3-phase systems.\u003c\/li\u003e \u003cli\u003eDowntime reduction: A dependable replacement option that aligns with existing AU500 specifications helps keep service windows tight.\u003c\/li\u003e \u003cli\u003eClear compatibility path: The AU500 part number provides a straightforward way to confirm fit before purchase, reducing guesswork and rework.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical tips for a smooth purchase and installation\u003c\/p\u003e \u003cul\u003e \u003cli\u003eHave your equipment specifications on hand (part number, amperage, poles, and voltage) to ensure an exact match with AU500.\u003c\/li\u003e \u003cli\u003eUse the AU500 as a reference point when planning replacements in legacy panels or gear that require Square D protection.\u003c\/li\u003e \u003cli\u003eConsult a qualified electrical professional during selection to validate panel compatibility and installation requirements.\u003c\/li\u003e \u003cli\u003eKeep a spare AU500 in inventory for rapid replacement and minimized downtime during maintenance cycles.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIf you need help matching a part number or confirming compatibility, send us a message and we’ll assist you in verifying the AU500 fits your application.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46414640906402,"sku":"AU500","price":460.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_513d6710-3734-4b27-839d-f68e6f4b470a.png?v=1765492974","url":"https:\/\/www.ampstate.com\/products\/square-d-au500-500a-3p-600v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}