{"product_id":"nan-hd421-disconnect-switch","title":"HD421 - Disconnect Switch","description":"\u003cdiv\u003e\n\u003cp\u003eThe HD421 Disconnect Switch is a high‑performance solution engineered for industrial and commercial environments where safe electrical isolation is non‑negotiable. Built to support proper lockout\/tagout procedures, this switch delivers dependable disconnection under load, giving maintenance teams the confidence to service equipment without compromising safety or uptime.\u003c\/p\u003e \u003ch3\u003eKey benefits that matter in the field\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLockout\/Tagout compatibility:\u003c\/strong\u003e Facilitates compliant, visible isolation during maintenance, reducing the risk of accidental re-energization.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliable disconnection under load:\u003c\/strong\u003e Designed to interrupt circuits safely when power is present, helping protect personnel and equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLong-term durability:\u003c\/strong\u003e Built to withstand demanding industrial environments, delivering steady performance year after year.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear isolation point for safety protocols:\u003c\/strong\u003e Acts as a definitive, easy‑to‑identify means of disconnect in electrical rooms and on manufacturing lines.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and servicing jobs where a positive, verifiable isolation point is required.\u003c\/li\u003e \u003cli\u003ePanel and equipment isolation in manufacturing floors, utility rooms, and commercial facilities.\u003c\/li\u003e \u003cli\u003eRetrofit projects where upgrading to a reliable disconnect switch supports enhanced safety programs.\u003c\/li\u003e \u003cli\u003eSituations demanding compliance with lockout\/tagout procedures to protect technicians and operators.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat makes the HD421 stand apart\u003c\/h3\u003e\n\u003cp\u003eUnlike generic isolation devices, the HD421 is purpose‑built for environments that demand rigorous safety, predictable behavior under load, and durable operation over time. Its straightforward design supports quick integration into existing safety workflows, helping facilities maintain high safety standards without sacrificing efficiency.\u003c\/p\u003e \u003ch3\u003ePractical setup and best practices\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMark the isolation point clearly and keep it unobstructed for rapid energization control during maintenance.\u003c\/li\u003e \u003cli\u003ePair the HD421 with a compliant lockout device and appropriate tagging to document the maintenance status.\u003c\/li\u003e \u003cli\u003eVerify proper function by following your site's testing procedures before re-energizing equipment.\u003c\/li\u003e \u003cli\u003eStore and maintain the disconnect in a designated, accessible location within the electrical enclosure or control panel.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Disconnect Switch\u003cbr\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e HD421\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default Title","offer_id":46383680848034,"sku":"HD421","price":1510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/disconnect_switches_generic_00a2e471-01d1-4f72-9c7e-b89f535f2dcd.png?v=1765252086","url":"https:\/\/www.ampstate.com\/products\/nan-hd421-disconnect-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}