{"product_id":"eaton-rd40-3-508-40a-3-pole-disconnect-switch","title":"Eaton RD40-3-508 - 40A, 3-Pole, Disconnect Switch","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton RD40-3-508 is a rugged, three-pole disconnect switch engineered to deliver reliable on\/off isolation and dedicated overcurrent protection in challenging industrial and commercial settings. With a 40A rating and a compact 3-pole design, this switch provides a dependable solution for controlling motors and protecting branch circuits without sacrificing space or ease of maintenance.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e RD40-3-508\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this disconnect switch stands out\u003c\/h2\u003e\n\u003cp\u003eDesigned for environments where reliability is non‑negotiable, the RD40-3-508 combines solid construction with practical maintenance simplicity. Its compact footprint fits neatly into panelboards or control enclosures, making it ideal for installations where space is at a premium. The three-pole configuration ensures full isolation of a three-phase circuit, protecting equipment during maintenance and reducing the risk of arc or fault spread.\u003c\/p\u003e \u003cp\u003eAs a fusible switch option, it supports targeted overcurrent protection while still offering straightforward accessibility for servicing and fuse replacement. This combination of protection, accessibility, and space efficiency makes it a practical choice for everyday motor disconnects and branch circuit protection where uptime and safety matter.\u003c\/p\u003e \u003ch2\u003eIdeal use cases and practical applications\u003c\/h2\u003e\n\u003cp\u003e• Motor disconnects in manufacturing lines, pumps, and HVAC systems where reliable isolation is required\u003c\/p\u003e\n\u003cp\u003e• Panelboard assemblies that demand compact, maintainable switching solutions\u003c\/p\u003e\n\u003cp\u003e• Branch circuit protection in commercial spaces where quick, clear access to disconnection is essential\u003c\/p\u003e \u003ch2\u003eHow it supports dependable operations\u003c\/h2\u003e\n\u003cp\u003eChoosing the Eaton RD40-3-508 means prioritizing clear isolation, predictable protection, and serviceability. It helps minimize downtime during maintenance, simplifies inspections, and provides a straightforward, robust control point for three-phase equipment. If you need a compact, maintainable switch that delivers reliable disconnection and overcurrent protection for motor loads and branch circuits, the RD40-3-508 is a solid, field-ready choice.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default","offer_id":46390380265634,"sku":"RD40-3-508","price":1120.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/fusible_disconnect_generic_b296c097-6186-4084-b039-a9abfbf5ed58.png?v=1765369682","url":"https:\/\/www.ampstate.com\/products\/eaton-rd40-3-508-40a-3-pole-disconnect-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}