{"product_id":"siemens-hf221nr-30a-2p-safety-switch","title":"Siemens HF221NR 30A 2P Safety Switch, NEMA 3R, Fusible | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eDesigned for reliable, code-compliant equipment disconnection, the Siemens HF221NR 30A 2P Safety Switch is the ready-made solution for isolating your large machinery at the point of use. As a fusible disconnect, this NEMA 3R enclosure is built to withstand outdoor environments and retrofit projects where keeping the same part number simplifies maintenance planning and procurement.\u003c\/p\u003e \u003ch2\u003eWhy the HF221NR stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFusible 30 A safety switch\u003c\/strong\u003e: provides clear, visible disconnection and overcurrent protection for your equipment, helping reduce risk during servicing and maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTwo-pole design\u003c\/strong\u003e: delivers balanced isolation for a wide range of circuits, ensuring dependable shutdown of both hot lines in the system.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNEMA 3R enclosure\u003c\/strong\u003e: engineered for weather-resistant outdoor use and rugged indoor environments, keeping internal components protected from rain, wind, and debris.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart integrity for retrofits\u003c\/strong\u003e: the HF221NR is chosen when project continuity matters—retain a consistent part number to simplify spares, documentation, and future replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmpState availability\u003c\/strong\u003e: readily sourced through AmpState, with support to confirm fit and compatibility for your installation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSiemens reliability\u003c\/strong\u003e: backed by Siemens engineering and compatibility with existing Siemens safety-switch ecosystems, helping ensure long-term performance and serviceability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: HF221NR\u003c\/li\u003e \u003cli\u003eProduct Type: Safety Switch (Fusible)\u003c\/li\u003e \u003cli\u003eAmperage: 30 A\u003c\/li\u003e \u003cli\u003ePoles: 2\u003c\/li\u003e \u003cli\u003eEnclosure Rating: NEMA 3R\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eOutdoor equipment disconnects for industrial machinery, pumps, conveyors, and HVAC installations.\u003c\/li\u003e \u003cli\u003eRetrofit projects where preserving a consistent part number minimizes downtime and documentation updates.\u003c\/li\u003e \u003cli\u003ePoint-of-use isolation in maintenance scenarios, enabling safe servicing without removing power across the system.\u003c\/li\u003e \u003cli\u003eNew builds or upgrades that require a rugged, weather-resistant fusible switch with straightforward field replacement options.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical benefits you’ll notice\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eClear, deterministic shutdown of equipment, reducing the risk of arcing or accidental energization during maintenance.\u003c\/li\u003e \u003cli\u003eStreamlined maintenance planning thanks to a widely recognized Siemens part that stays consistent across upgrades and service cycles.\u003c\/li\u003e \u003cli\u003eDurable, weather-ready enclosure that keeps critical switching components protected in harsh environments.\u003c\/li\u003e \u003cli\u003eSimple procurement and compatibility support through AmpState to ensure the HF221NR fits your existing electrical architecture.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTips for installation and ongoing care\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify circuit applicability: 30 A, 2-pole configuration aligns with your feeder design and protective device coordination.\u003c\/li\u003e \u003cli\u003ePrepare for retrofit: use the HF221NR when you need a fusible disconnect with a stable part number for future maintenance plans.\u003c\/li\u003e \u003cli\u003eEnsure enclosure integrity: install in an outlet or panel location that benefits from NEMA 3R protection against weather and debris.\u003c\/li\u003e \u003cli\u003ePlan fuse replacement strategy: keep compatible fuses on hand and schedule periodic checks to minimize downtime during service intervals.\u003c\/li\u003e \u003cli\u003eNeed confirmation on fit? Message AmpState for compatibility checks and guidance on integrating the HF221NR with your existing equipment roundup.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eReady to implement a dependable, code-ready disconnect at the point of use? The Siemens HF221NR 30A 2P Safety Switch delivers robust isolation, retrofit-friendly design, and outdoor-ready protection, backed by AmpState’s support to verify fit and availability.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46411001823394,"sku":"HF221NR","price":955.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_83963f7f-600e-419f-90c6-e7677089642b.png?v=1765492973","url":"https:\/\/www.ampstate.com\/products\/siemens-hf221nr-30a-2p-safety-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}