{"product_id":"square-d-hda36090un","title":"Square D HDA36090UN 90A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D HDA36090UN 90A 3-Pole 600 V Circuit Breaker — a purpose-built protection device for demanding three-phase systems. With a 90 amp current rating and a 600 V maximum, this breaker is engineered to safely interrupt fault currents and shield equipment in commercial and industrial environments. The part number HDA36090UN is your assurance of a precise replacement that fits compatible Square D panel configurations.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 90 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3 (three-pole configuration for balanced three-phase protection)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HDA36090UN\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this 3-Pole, 90A, 600 V breaker matters\u003c\/h3\u003e\n\u003cp\u003eIn three-phase networks, a 3-pole breaker like the HDA36090UN ensures synchronized disconnection of all phases, reducing the risk of unbalanced faults and equipment damage. The 90 A rating makes it well-suited for motor feeders, pump circuits, HVAC equipment, and other loads that draw substantial current in industrial or large commercial environments. Designed for compatibility with Square D panels, it provides a reliable upgrade or replacement option when you need robust, coordinated protection across all three phases.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMotor control centers and feeder circuits for compressors, pumps, fans, and conveyors\u003c\/li\u003e \u003cli\u003eCommercial or light-industrial distribution panels requiring reliable three-phase protection\u003c\/li\u003e \u003cli\u003ePanel replacements where a 90 A, 3-pole, 600 V protection device is specified\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical considerations and tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify panel compatibility with this HDA-series configuration to ensure a proper fit and reliable operation.\u003c\/li\u003e \u003cli\u003ePlan for three-phase protection where unbalanced faults could impact connected motors and equipment.\u003c\/li\u003e \u003cli\u003eWhen replacing an older breaker, match not only voltage and current ratings but also the physical style and mounting to avoid installation issues.\u003c\/li\u003e \u003cli\u003eFollow all local electrical codes and manufacturer installation guidelines for safe handling and secure connections.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoosing the Square D HDA36090UN means selecting a trusted solution for protecting three-phase circuits at up to 600 V. It’s the right choice when you need dependable, coordinated interruption across all phases to safeguard motors, drives, and heavy loads in demanding environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423577755810,"sku":"HDA36090UN","price":2199.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/square-d-hda36090un","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}