{"product_id":"square-d-d322nrb-60a-240v-3-pole-general-duty-fusible-safety-switch-nema-3r","title":"Square D D322NRB - 60A, 240V, 3-Pole, General-Duty, Fusible, Safety Switch, NEMA 3R","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D D322NRB is a rugged, general‑duty fusible safety switch engineered for reliable on\/off isolation and fast overcurrent protection in demanding industrial and commercial environments. With a 60A, 240V, three‑pole design and a NEMA 3R enclosure, it delivers dependable performance indoors or outdoors, guarding motors, panelboards, and branch circuits where compact, maintainable protection is essential.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e D322NRB\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 60A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3‑Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNEMA Rating:\u003c\/strong\u003e NEMA 3R (outdoor weather‑resistant enclosure)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDuty:\u003c\/strong\u003e General‑Duty\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFusible:\u003c\/strong\u003e Fusible design for integrated overcurrent protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat makes it stand out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eIntegrated motor disconnect and protection:\u003c\/strong\u003e Combines isolation with overcurrent protection in one compact unit, simplifying wiring and improving maintenance workflow.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNEMA 3R outdoor readiness:\u003c\/strong\u003e Weather‑resistant enclosure protects against rain, wind, and dust, making it suitable for outdoor equipment rooms, loading docks, and exterior motor applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree‑pole reliability:\u003c\/strong\u003e Provides complete isolation of all conductors across three phases, enhancing safety during servicing and reducing arc‑fault risk.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompact, maintainable design:\u003c\/strong\u003e A streamlined, easy‑to‑service switch that reduces downtime and makes fuse changes straightforward in field installations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMotor disconnects for outdoor pumps, fans, conveyors, and compressors\u003c\/li\u003e \u003cli\u003eBranch circuit protection in commercial electrical panels and small industrial installations\u003c\/li\u003e \u003cli\u003eOutdoor HVAC equipment where dependable isolation and fuse protection are required\u003c\/li\u003e \u003cli\u003ePanelboard feeder protection where a ready‑to‑install fusible switch is preferred over separate fusing components\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this matters for your operation\u003c\/h3\u003e\n\u003cp\u003eChoosing the Square D D322NRB means you’re installing a purpose‑built safety switch that balances protection, accessibility, and outdoor durability. The fusible design delivers fast, predictable fault clearing, helping prevent collateral damage to wiring and downstream equipment. The 3R enclosure ensures weather resistance, so maintenance crews can work safer and more efficiently without compromising protection. For facilities prioritizing clear maintenance paths and code‑compliant motor control, this switch provides a straightforward, reliable solution.\u003c\/p\u003e \u003ch3\u003ePractical tips and considerations\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMatch the fuse rating to your motor load and startup current to optimize protection without nuisance trips.\u003c\/li\u003e \u003cli\u003ePlan for outdoor installations by ensuring the enclosure remains sealed and free of debris; periodic inspection helps sustain reliability in harsh environments.\u003c\/li\u003e \u003cli\u003eUse this switch as a primary disconnect where code and safety standards require a clearly identifiable motor disconnect with integrated protection.\u003c\/li\u003e \u003cli\u003eKeep spare fuses on hand and verify replacement procedures align with your facility’s maintenance protocol to minimize downtime.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default","offer_id":46390334554274,"sku":"D322NRB","price":439.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/fusible_disconnect_generic_65013753-10cd-4f49-8a7a-82cb531a2483.png?v=1765368234","url":"https:\/\/www.ampstate.com\/products\/square-d-d322nrb-60a-240v-3-pole-general-duty-fusible-safety-switch-nema-3r","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}