{"product_id":"siemens-hf321nr-disconnect-switch-5","title":"Siemens HF321NR - 30A, 240V, 3-Pole, Fused Disconnect Switch","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens HF321NR 30A, 240V, 3-Pole Fused Disconnect Switch is built to deliver safe and reliable electrical isolation in demanding industrial and commercial environments. Designed to support proper lockout\/tagout procedures and dependable disconnection under load, it’s a trusted choice for protecting personnel and equipment during maintenance and service.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 30A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Fused Disconnect 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\u003eWhat sets the HF321NR apart\u003c\/h3\u003e\n\u003cp\u003eUnlike standard non-fused disconnects, the HF321NR provides inherent short-circuit protection with a dedicated fuse path, enabling swift interruption of fault currents while delivering a clean, deliberate disconnect of three-phase power. Its robust construction is tailored for continuous duty in environments where reliability matters, so you can count on consistent performance over time.\u003c\/p\u003e \u003ch3\u003eIdeal use scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eThree-phase motor circuits in manufacturing lines, conveyors, and processing equipment\u003c\/li\u003e \u003cli\u003ePower isolation for HVAC units, pumps, and industrial fans\u003c\/li\u003e \u003cli\u003eService doors and disconnect points in control panels and electrical enclosures\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy it matters for your operation\u003c\/h3\u003e\n\u003cp\u003eKey benefits include enhanced worker safety through clear, lockable isolation points and improved maintenance outcomes thanks to predictable fault interruption. The 3-pole design ensures all three phases are simultaneously disengaged, reducing risk during servicing and enabling safer lockout\/tagout workflows. Durable construction supports long-term reliability in busy commercial sites and industrial plants.\u003c\/p\u003e \u003ch3\u003ePractical considerations and usage tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eInstall in accordance with local electrical codes and your facility’s safety procedures to maximize the benefit of lockout\/tagout compliance.\u003c\/li\u003e \u003cli\u003ePair with appropriate fuses to maintain overcurrent protection for the protected load, and schedule fuse replacements as part of routine maintenance.\u003c\/li\u003e \u003cli\u003eLabel clearly at the disconnect point and ensure only authorized personnel have access during maintenance windows.\u003c\/li\u003e \u003cli\u003eUse in applications where a clean, definitive disconnect is required for three-phase equipment and where ongoing isolation during service is critical.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Siemens HF321NR when you need a dependable, three-phase fused disconnect that combines effective current interruption with straightforward, safe isolation. It’s a practical, durable solution for protecting people and equipment in demanding industrial and commercial environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default Title","offer_id":46383645982882,"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-fused-disconnect-switch-437.webp?v=1788814726","url":"https:\/\/www.ampstate.com\/products\/siemens-hf321nr-disconnect-switch-5","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}