{"product_id":"square-d-d325nr-400a-3p-240v-safety-switch","title":"Square D D325NR 400A 3P 240V Safety Switch, NEMA 3R, Fusible | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D \u003cstrong\u003eD325NR\u003c\/strong\u003e 400 A 3P 240 V Safety Switch is a rugged, point‑of‑use disconnect designed to reliably isolate heavy electrical equipment when service or maintenance is required. With a NEMA 3R enclosure, this fusible safety switch is built to withstand outdoor exposure and harsh environments without compromising performance.\u003c\/p\u003e \u003cp\u003eDesigned for retrofit work and long‑term maintenance planning, the D325NR keeps your part numbers consistent. That means fewer procurement headaches when you’re upgrading or replacing legacy gear, and a smoother path to code‑compliant safety procedures on the line.\u003c\/p\u003e \u003ch3\u003eWhat makes this safety switch stand out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-capacity protection:\u003c\/strong\u003e 400 A, three‑pole configuration supports large 3‑phase equipment and feeders.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOutdoor‑ready reliability:\u003c\/strong\u003e NEMA 3R enclosure is built to endure rain, dust, and temperature variations while keeping electrical connections secure.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFusible design:\u003c\/strong\u003e Integrated fusible protection provides dependable overcurrent interruption at the point of use, simplifying safety architecture and maintenance routines.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eKnown part number for retrofit:\u003c\/strong\u003e D325NR is a stable, widely recognized code for easy sourcing and consistent fit across service intervals.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmpState support:\u003c\/strong\u003e If you’re verifying compatibility or matching a part number, AmpState can help confirm fit and streamline procurement.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEquipment disconnects and isolation at the point of use for servicing motors, pumps, conveyors, and other heavy machinery.\u003c\/li\u003e \u003cli\u003eRetrofit installations where keeping the same part number simplifies ordering, stocking, and maintenance planning.\u003c\/li\u003e \u003cli\u003eOutdoor or semi‑outdoor facilities such as manufacturing yards, remote plant areas, or weather‑exposed electrical rooms where a robust NEMA 3R enclosure is advantageous.\u003c\/li\u003e \u003cli\u003eSystems requiring dependable 3‑phase, 240 V protection with a clear, single‑point disconnect for safe, controlled shutdowns.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical considerations and tips\u003c\/h3\u003e\n\u003cp\u003ePlan for routine fuse maintenance and ensure you source compatible fuse cartridges that match the 400 A rating. Label the disconnect clearly for quick identification during maintenance or emergencies. For project teams, keeping the D325NR on the approved part list minimizes downtime when replacements are needed mid‑stream. If you’re unsure about compatibility with your existing switchgear, reach out to AmpState—the team can confirm fit and help you move forward with confidence.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e D325NR\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Safety switch (fusible)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEnclosure rating:\u003c\/strong\u003e NEMA 3R\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e AmpState\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re planning a retrofit, stocking a reliable replacement, or coordinating maintenance for a critical line, the Square D D325NR 400A 3P 240V Safety Switch delivers sturdy protection with a design that keeps your part numbers consistent. If you need a quick confirmation of fit, message AmpState and let the experts verify compatibility for your exact setup.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46411092295842,"sku":"D325NR","price":11340.0,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/www.ampstate.com\/products\/square-d-d325nr-400a-3p-240v-safety-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}