{"product_id":"square-d-h325n-disconnect-switch","title":"Square D H325N - 400A, 240V, 3-Pole, Fused Disconnect Switch","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D H325N 400A, 240V, 3-Pole Fused Disconnect Switch is engineered for dependable electrical isolation in demanding industrial and commercial settings. Designed to support safe lockout\/tagout procedures and provide a clean, controllable disconnect under load, this switch focuses on reliability, durability, and straightforward maintenance so your critical equipment stays protected and available when it matters most.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 400 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure:\u003c\/strong\u003e NEMA 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Fused Disconnect Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Square D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e H325N\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhat makes the H325N stand out is its integrated fuse protection paired with a robust, user-friendly design. The fused disconnect provides overcurrent protection for motor circuits and feeders while enabling operators to safely isolate equipment during maintenance or in an emergency. With a dedicated 3-pole configuration, all conductors are simultaneously disconnected, reducing arcing risk and ensuring a complete, reliable mute of power to downstream devices.\u003c\/p\u003e \u003cp\u003eKey benefits in real-world use:\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafe isolation under load:\u003c\/strong\u003e Built to disconnect power cleanly when required, helping prevent damage to equipment and reducing downtime during maintenance or service outages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLockout\/Tagout compatibility:\u003c\/strong\u003e Supports standard safety procedures, letting technicians secure the circuit during service to protect personnel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndoor ruggedness (NEMA 1):\u003c\/strong\u003e Engineered for indoor applications where dust and debris exposure are a consideration, delivering steady performance over the long term.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty suitability:\u003c\/strong\u003e With a 400 A rating at 240 V, it is appropriate for feeding large motors, machinery lines, and other demanding loads found in industrial or commercial facilities.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal for facilities that require a reliable service disconnect or motor feeder protection, the Square D H325N is well-suited for applications such as machinery rooms, manufacturing lines, HVAC installations, conveyors, and other equipment that benefits from a dedicated fused disconnect switch. It’s a practical choice for electrical panels, switchgear assemblies, and distribution feeds where safety, compliance, and continuous operation are priorities.\u003c\/p\u003e \u003cp\u003eCompared to non-fused disconnect options, the H325N adds built-in overcurrent protection without the need for separate fusing components, simplifying install time and reducing component count while delivering rapid, reliable disconnection when tripping occurs. This translates to fewer interruptions and a clearer path to safe, controlled shutdowns.\u003c\/p\u003e \u003cp\u003ePractical considerations for deployment:\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003eVerify compatibility with existing electrical panels and feeders expecting a 3-pole, 400 A, 240 V fused disconnect configuration.\u003c\/li\u003e\n\u003cli\u003ePlan for routine inspection of connections and fuse replacements to minimize downtime during planned maintenance.\u003c\/li\u003e\n\u003cli\u003eStock a small inventory of compatible fuses to support quick recovery after a fault or preventive maintenance window.\u003c\/li\u003e\n\u003cli\u003eIntegrate this switch into your lockout\/tagout program to ensure consistent safety practices across maintenance teams.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Square D name behind it, you’re choosing a solution built for reliability, long service life, and straightforward operation in challenging environments. The H325N delivers clear, decisive isolation when you need it, while supporting safe, compliant maintenance routines and steady, uninterrupted performance for essential equipment.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default Title","offer_id":46383541846178,"sku":"H325N","price":3310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-h325n-400a-240v-3-pole-fused-disconnect-switch-904.webp?v=1788804331","url":"https:\/\/www.ampstate.com\/products\/square-d-h325n-disconnect-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}