{"product_id":"square-d-hda36070sn","title":"Square D HDA36070SN 70A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered for demanding electrical systems, the Square D HDA36070SN delivers dependable protection for three-phase power with a 70 A rating and a 600 V maximum. This 3-pole circuit breaker is built to safeguard motors, feeders, and distribution panels from overloads and short circuits, helping you keep critical equipment running smoothly while maintaining safe, organized panels.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 70 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\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 HDA36070SN\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrong targeted for three-phase protection:\u003e The 3-pole design ensures coordinated interruption across all phases, reducing the risk of phase imbalance and protecting multi-motor and multi-feed circuits.\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRobust, industrial-grade build:\u003c\/strong\u003e Designed for reliability in commercial and industrial panels where consistent protection matters most.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear, role-specific protection:\u003c\/strong\u003e With a 70 A rating and a 600 V limit, it’s well-suited for moderate-to-heavy loads common in HVAC, manufacturing lines, and distribution feeders.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeamless panel integration:\u003c\/strong\u003e Engineered to work with Square D enclosures and compatible systems, helping you maintain a neat, unified electrical installation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eProtecting three-phase motors, pumps, and conveyors in manufacturing or processing facilities.\u003c\/li\u003e \u003cli\u003eFeeding three-phase distribution panels in commercial buildings and industrial spaces.\u003c\/li\u003e \u003cli\u003eSafeguarding HVAC equipment and large fans that rely on three-phase power.\u003c\/li\u003e \u003cli\u003eReplacing worn or under-rated breakers in systems that require higher voltage protection and multi-pole coordination.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow it helps you solve real-world problems\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePrevent unbalanced loads:\u003c\/strong\u003e Coordinated tripping across all three phases minimizes fault conditions and protects connected equipment from partial trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eImprove maintenance planning:\u003c\/strong\u003e A clearly rated 70 A, 3-pole unit provides predictable behavior, making fault diagnostics faster and safer.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSimplify stocking and replacements:\u003c\/strong\u003e The specific part number HDA36070SN aligns with Square D inventories, reducing the guesswork when ordering replacements for legacy systems.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and practical tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify that your panel or enclosure supports a 3-pole, 600 V class device in the HDA series and that mounting aligns with the unit’s terminal layout.\u003c\/li\u003e \u003cli\u003eEnsure proper torque on terminals according to the panel manufacturer’s guidelines to maintain secure connections and reliable tripping behavior.\u003c\/li\u003e \u003cli\u003eBefore commissioning, confirm that the connected loads are within the 70 A rating to avoid nuisance trips while still providing robust protection.\u003c\/li\u003e \u003cli\u003eKeep the circuit breaker accessible for periodic inspection and testing, and label it clearly to reflect its role in protecting three-phase circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThe Square D HDA36070SN 70A 3-Pole 600 V Circuit Breaker is a purpose-built solution for reliable three-phase protection in industrial and commercial environments. By combining precise trip performance with a durable design, it helps protect both equipment and personnel while supporting efficient electrical system operation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423580213410,"sku":"HDA36070SN","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-hda36070sn","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}