{"product_id":"siemens-hf321nr-disconnect-switch-6","title":"Siemens HF321NR - 30A, 240V, 3-Pole, Safety Switch","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens HF321NR is a rugged, high-performance Safety Switch engineered for industrial and commercial environments where safe electrical isolation is non-negotiable. Built to support proper lockout\/tagout procedures and deliver dependable disconnection under load, this 3-Pole switch is ready for long-term, demanding use.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 30 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Safety Switch\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e HF321NR\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy the HF321NR stands out\u003c\/h3\u003e\n\u003cp\u003eThis safety switch isn’t just a disconnect device—it’s a purposeful tool for safeguarding maintenance work and protecting equipment. The three-pole design ensures complete isolation across all conductors in three-phase circuits, reducing the risk of hidden energization during servicing. Its construction is tailored for steady performance under load, so you can count on a clean, guaranteed stoppage when you need it most.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eIndustrial machinery and production lines where safe isolation is required before maintenance or repair.\u003c\/li\u003e \u003cli\u003eConveyor systems, presses, pumps, and other heavy electrical equipment that operate on 240 V three-phase power.\u003c\/li\u003e \u003cli\u003eElectrical panels and switchgear assemblies where a reliable, code-friendly disconnect is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical benefits you’ll notice\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEnhanced worker safety through effective lockout\/tagout compatibility and verifiable de-energization.\u003c\/li\u003e \u003cli\u003eClear, decisive disconnection even when equipment is under load, helping minimize downtime during service calls.\u003c\/li\u003e \u003cli\u003eDurable, purpose-built design suited for constant use in harsh industrial environments.\u003c\/li\u003e \u003cli\u003eSimplified maintenance workflows: predictable operation, straightforward wiring, and reliable isolation—every time.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTips for optimal setup and use\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eInstall HF321NR in-line with three-phase equipment to achieve full phase isolation during servicing.\u003c\/li\u003e \u003cli\u003ePair with proper lockout\/tagout devices and placards to ensure standard operating procedures are clear and enforceable.\u003c\/li\u003e \u003cli\u003eLabel circuits clearly and verify de-energization with a test instrument before performing any work.\u003c\/li\u003e \u003cli\u003eSchedule periodic inspections of the switch mechanism and enclosure integrity to sustain long-term reliability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor facilities relying on precise, safe electrical isolation, the Siemens HF321NR Safety Switch delivers the combination of robust performance, clear safety benefits, and durable operation you need to keep equipment protected and teams confident. When you specify 240 V, 30 A, and 3-pole isolation, you’re choosing a dependable solution designed to integrate smoothly into your safety and maintenance workflows.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default Title","offer_id":46383754641570,"sku":"HF321NR","price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hf321nr-30a-240v-3-pole-safety-switch-375.webp?v=1788828047","url":"https:\/\/www.ampstate.com\/products\/siemens-hf321nr-disconnect-switch-6","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}