{"product_id":"square-d-999360-60a-3p-600v-circuit-breaker","title":"Square D 999360 Circuit Breaker, 60A, 3-Pole, 600V","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D 999360 Circuit Breaker\u003c\/strong\u003e is a rugged, industrial-grade overcurrent protection solution designed for demanding service and maintenance environments. Rated at 60 A with three poles and a 600 V maximum, this unit is built to safeguard equipment and personnel while keeping downtime to a minimum.\u003c\/p\u003e \u003ch3\u003eCompatibility and verification\u003c\/h3\u003e\n\u003cp\u003eTo ensure a precise fit, verify the part number and your application requirements. The 999360 is part of the On Frame 99 series, a trusted platform for retrofit and replacement projects in industrial panels. Always confirm compatibility by cross-checking the part number 999360 with your panel specifications and intended load profile. If you’re unsure about fit or installation, send us a message and our team will help you confirm compatibility against your equipment and wiring scheme.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 999360\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e On Frame 99\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 60 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\n\u003c\/ul\u003e \u003ch3\u003eWhat problems this breaker solves\u003c\/h3\u003e\n\u003cp\u003eWhen industrial equipment demands reliable fault interruption, the 999360 delivers. It protects motor lines, power distribution feeders, and control circuits from overloads and short circuits, helping to prevent damage to downstream equipment and reducing unplanned downtime. Because it’s part of the well-established On Frame 99 family, it offers consistent performance and straightforward replacement in compatible enclosures.\u003c\/p\u003e \u003ch3\u003eBest-fit use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacement in On Frame 99 series panels and switchgear\u003c\/li\u003e \u003cli\u003eIndustrial service upgrades or retrofits where a 60 A, 3-pole, 600 V protector is required\u003c\/li\u003e \u003cli\u003eMaintenance shutdowns and routine electrical servicing in manufacturing plants, processing facilities, and large workshops\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this Square D breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eProven compatibility within the On Frame 99 ecosystem\u003c\/strong\u003e—a reliable choice for existing installations designed for this series.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear part-number-driven matching\u003c\/strong\u003e—reduce the guesswork in replacement projects by starting with 999360.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustrial-grade protection\u003c\/strong\u003e suited for continuous service environments common in manufacturing and distribution settings.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and best practices\u003c\/h3\u003e\n\u003cp\u003eHandle with the power off and follow your facility’s safety protocols. Confirm mounting and bus conformity with the On Frame 99 framework, and ensure the wiring and terminals meet the device’s torque and conductor requirements. For compatibility confirmation or installation questions, \u003cem\u003emessage us\u003c\/em\u003e and we’ll help verify fit against your specific panel and load profile.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46416109404322,"sku":"999360","price":460.0,"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-999360-60a-3p-600v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}