{"product_id":"terasaki-at-6-630a-660v-3-pole-air-circuit-breaker","title":"Terasaki AT-6 630A 660V 3-Pole Air Circuit Breaker For Industrial And Commercial Power Distribution","description":"\u003cdiv\u003e\n\u003cp\u003eThe Terasaki AT-6 630A 660V 3-Pole Air Circuit Breaker is built for heavy-duty protection and reliable switching in industrial and commercial power distribution. Engineered to handle demanding fault currents, this air breaker safeguards main feeders, switchboards, and critical loads across manufacturing floors, data centers, and large facilities with consistent performance.\u003c\/p\u003e \u003cp\u003eWith a 630A current rating and a 660V voltage rating across 3 poles, the AT-6 delivers precise, fast interruption when faults occur, helping to minimize downtime and protect equipment downstream. The adjustable trip settings give you the control to tailor protection to your specific network topology, enabling coordinated protection with upstream devices and reducing nuisance trips while preserving system reliability.\u003c\/p\u003e \u003ch3\u003eKey differentiators\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design\u003c\/strong\u003e provides balanced protection across all three phases, supporting reliable coordination in three-phase power distribution.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAdjustable trip settings\u003c\/strong\u003e enable precise protection tuning to your site's feeders and downstream protection schemes.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh interruption capacity\u003c\/strong\u003e ensures rapid fault current clearance, safeguarding cables, transformers, and connected loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHeavy-duty air circuit breaker\u003c\/strong\u003e crafted for enduring operation in challenging industrial and commercial environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIdeal for critical power distribution\u003c\/strong\u003e including main incoming feeders, switchboards, and essential distribution panels where dependable protection matters most.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMain incoming feeders in industrial facilities and manufacturing plants.\u003c\/li\u003e \u003cli\u003eSwitchboards and panelboards requiring robust phase protection and quick fault isolation.\u003c\/li\u003e \u003cli\u003eCommercial complexes with demanding power distribution needs and coordinated protection schemes.\u003c\/li\u003e \u003cli\u003eUpgrades and retrofits in existing low-to-medium voltage distribution networks seeking improved reliability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow it protects your system\u003c\/h3\u003e\n\u003cp\u003eWhen a fault occurs, the Terasaki AT-6 acts quickly to interrupt current flow, isolating the faulty circuit before damage propagates through cables, transformers, or downstream equipment. The adjustable trip settings let engineers tailor the response to the specific fault current and protection coordination required by the installation, reducing downtime and enhancing overall system resilience.\u003c\/p\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel \/ Part Number:\u003c\/strong\u003e AT-6\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e 630A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 660V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBreaker Type:\u003c\/strong\u003e Air Circuit Breaker\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned for reliability in industrial and commercial power distribution, the Terasaki AT-6 630A 660V 3-Pole Air Circuit Breaker is a precise, capable choice for protecting essential electrical infrastructure. Ready for integration into main feeders and switchboards, it delivers dependable performance when it matters most—keeping systems safe, productive, and online.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Terasaki","offers":[{"title":"Default","offer_id":46390488596642,"sku":"AT-6","price":9548.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_da1b01a9-1159-4873-ab89-a0c9b6665f92.png?v=1765373760","url":"https:\/\/www.ampstate.com\/products\/terasaki-at-6-630a-660v-3-pole-air-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}