{"product_id":"square-d-hu661rwk-disconnect-switch-2","title":"Square D HU661RWK - 30A, 600V, Fused Disconnect Switch","description":"\u003cdiv\u003eThe Square D HU661RWK is a 30A, 600V fused disconnect switch designed for rugged industrial and commercial environments where safe electrical isolation is non-negotiable. Built to deliver dependable disconnection under load, it supports proper lockout\/tagout procedures and stands up to long-term, demanding use. \u003cstrong\u003eWhy this fused disconnect stands out\u003c\/strong\u003e\n- Integrated overcurrent protection: The fused design provides immediate fault interruption while delivering a clear, definitive disconnect when work begins.\n- Precise electrical isolation under load: Engineered to interrupt current reliably, so maintenance and servicing can proceed without guesswork or exposure to live conductors.\n- Durable, weather-conscious enclosure: With a NEMA 3 enclosure, this switch is suitable for indoor installations and protected outdoor or rugged environments where dust, rain, and sprinkler exposure are a consideration.\n- Safe, compliant maintenance workflows: The HU661RWK is purpose-built to integrate with lockout\/tagout programs, helping teams meet safety requirements and minimize accidental re-energization.\n- Trusted square-d design and engineering: As a Square D device, it benefits from a legacy of dependable electrical protection and compatibility with standard distribution setups. \u003cstrong\u003eSpecifications at a glance\u003c\/strong\u003e\n\u003cul\u003e \u003cli\u003eAmperage Rating: 30A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 600V\u003c\/li\u003e \u003cli\u003eEnclosure Rating: NEMA 3\u003c\/li\u003e \u003cli\u003eProduct Type: Fused Disconnect Switch\u003c\/li\u003e \u003cli\u003eBrand: Square D\u003c\/li\u003e \u003cli\u003eModel: HU661RWK\u003c\/li\u003e\n\u003c\/ul\u003e \u003cstrong\u003eIdeal applications\u003c\/strong\u003e\n\u003cul\u003e \u003cli\u003eIndustrial equipment rooms, machining lines, and assembly fixtures that require quick, safe isolation for maintenance\u003c\/li\u003e \u003cli\u003eCommercial HVAC, pumps, and conveyor systems where servicing must occur with the circuit de-energized\u003c\/li\u003e \u003cli\u003eOutdoor or semi-exposed installations that benefit from a weather-protected enclosure and reliable fuse protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cstrong\u003eWhat problems does it solve?\u003c\/strong\u003e\n\u003cul\u003e \u003cli\u003eEliminates guesswork during servicing by providing a clear, verifiable disconnect under load\u003c\/li\u003e \u003cli\u003eEnhances safety and compliance through lockout\/tagout compatibility\u003c\/li\u003e \u003cli\u003eReduces downtime with a robust, durable switch designed for repeated on\/off cycles in demanding environments\u003c\/li\u003e\n\u003c\/ul\u003e \u003cstrong\u003ePractical tips for use and setup\u003c\/strong\u003e\n\u003cul\u003e \u003cli\u003eVerify that the fuse rating and type align with the circuit requirements before installation\u003c\/li\u003e \u003cli\u003ePlan for lockout\/tagout procedures and train personnel on proper de-energization before maintenance\u003c\/li\u003e \u003cli\u003eInstall in a location that allows for convenient fuse access and inspection, while ensuring the NEMA 3 enclosure remains protected from excessive moisture or prolonged exposure\u003c\/li\u003e \u003cli\u003ePeriodically inspect for signs of wear or corrosion on the enclosure and switch contacts to maintain reliable performance\u003c\/li\u003e\n\u003c\/ul\u003e The Square D HU661RWK provides a precise, safe, and durable solution for electrical isolation in environments where reliability matters most. Whether upgrading an aging disconnect or integrating into a new distribution setup, this 30A, 600V fused disconnect switch combines solid protection with practical operability, backed by Square D’s engineering legacy.\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default Title","offer_id":46383686025378,"sku":"HU661RWK","price":610.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/disconnect_switches_generic_eedd6c47-8bca-4ab4-8a33-5f894eabe293.png?v=1765252145","url":"https:\/\/www.ampstate.com\/products\/square-d-hu661rwk-disconnect-switch-2","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}