{"product_id":"industrial-nef433090","title":"Industrial NEF433090 90A 3-Pole 480 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eIndustrial NEF433090 90A 3-Pole 480 V Circuit Breaker is engineered for demanding power distribution in harsh industrial environments. With a 90-amp rating and a 3-pole configuration, this protective device safeguards three-phase systems at 480 V, helping keep motors, drives, and feeders running smoothly while minimizing the impact of faults.\u003c\/p\u003e \u003ch3\u003eKey specifications and what they mean for your setup\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 90 A — robust protection for medium-to-large electrical loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3 — designed for three-phase 480 V networks common in industrial facilities.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 480 V — ideal for factory floor distribution, machine controls, and HVAC systems powered by three-phase supplies.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e NEF433090 — ensures precise compatibility and traceability within industrial panels and switchgear.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this model stands out\u003c\/h3\u003e\n\u003cp\u003eUnlike lighter-duty or single- or dual-pole breakers, the NEF433090 is purpose-built for three-phase 480 V applications. The combination of a 90 A current rating with a 3-pole design provides coordinated protection across all three phases, helping prevent cascading faults and protecting expensive equipment from overloads and short circuits. The result is improved uptime, safer operation, and clearer fault isolation in complex electrical systems.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMotor control centers and drive-powered equipment in manufacturing lines\u003c\/li\u003e \u003cli\u003eThree-phase feeders feeding distribution panels in industrial facilities\u003c\/li\u003e \u003cli\u003eCritical HVAC and pumping systems that operate on 480 V three-phase power\u003c\/li\u003e \u003cli\u003eIndustrial machinery where reliable branch protection minimizes downstream outages\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and practical considerations\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eDesigned for standard industrial enclosures that support 3-pole, 480 V protection schemes.\u003c\/li\u003e \u003cli\u003eVerify enclosure compatibility and mounting orientation to ensure proper clearance and cooling.\u003c\/li\u003e \u003cli\u003ePlan wiring to maintain proper phase balance and avoid overloading any single conductor within the breaker.\u003c\/li\u003e \u003cli\u003eRegular visual inspections and periodic testing help confirm the integrity of trip mechanisms and contacts.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow it compares to typical alternatives\u003c\/h3\u003e\n\u003cp\u003eFor environments running 480 V three-phase power, a 3-pole breaker like the NEF433090 delivers synchronized protection that single- or two-pole devices cannot provide. It supports safer, more reliable shutdown of all three phases during a fault, which is essential for protecting motors and drives from damage and reducing unplanned downtime.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Industrial","offers":[{"title":"Default Title","offer_id":46423442849954,"sku":"NEF433090","price":510.0,"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\/industrial-nef433090","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}