{"product_id":"siemens-hf365-400a-3p-600v-safety-switch","title":"Siemens HF365 400A 3P 600V Safety Switch, NEMA 1, Fusible | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eDesigned for everyday electrical work, the Siemens HF365 safety switch provides reliable equipment disconnect and isolation at the point of use. This fusible, NEMA 1 enclosure 400 A, 3-pole switch is built to withstand the rigors of industrial environments while simplifying maintenance and future replacements.\u003c\/p\u003e \u003ch2\u003eKey specifications at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HF365\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct type:\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 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEnclosure:\u003c\/strong\u003e NEMA 1\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat makes the HF365 stand out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-aligned replacement option:\u003c\/strong\u003e Ideal for replacement projects where you need to keep the bill of materials consistent with the original part number, reducing downtime and wiring rework.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFusible protection with point-of-use isolation:\u003c\/strong\u003e The fusible design provides both disconnect capability and overcurrent protection in a single unit, streamlining installation and maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRobust 3-pole, 400 A capacity:\u003c\/strong\u003e Ready to handle demanding industrial loads while offering straightforward wiring and integration with existing 600 V systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndoor, durable NEMA 1 enclosure:\u003c\/strong\u003e Built for controlled environments where dust and moisture protection are less critical, keeping installation simple and cost-effective.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEasy sourcing through AmpState:\u003c\/strong\u003e Available from AmpState, with assistance available to confirm fit and compatibility for your exact panel or distribution configuration.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEquipment disconnects and isolation points in manufacturing lines, conveyors, or automation cabinets.\u003c\/li\u003e \u003cli\u003eReplacement or spare parts stock to maintain BOM fidelity and minimize downtime during maintenance shutdowns.\u003c\/li\u003e \u003cli\u003eNew or retrofit installations in indoor facilities where a rugged, fusible safety switch is required for 600 V systems.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow it helps you operate more efficiently\u003c\/h3\u003e\n\u003cp\u003eThe HF365 combines Siemens reliability with practical, site-ready installation. Its fusible design means you don’t have to juggle separate disconnect and protection devices, which can shorten installation time and reduce the number of parts to stock. When you source this switch from AmpState, you also gain access to compatibility guidance—a quick message can confirm that HF365 fits your specific equipment and BOM needs.\u003c\/p\u003e \u003ch3\u003ePractical tips for installation and maintenance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify your system is a 600 V, 3-pole configuration to match the HF365’s ratings and ensure correct wiring of the three poles.\u003c\/li\u003e \u003cli\u003eKeep a spare HF365 on hand for preventive maintenance to preserve original BOM alignment and minimize project downtime.\u003c\/li\u003e \u003cli\u003eFollow local electrical codes and Siemens installation guidelines when wiring the fusible switch to your distribution system.\u003c\/li\u003e \u003cli\u003eLeverage AmpState support to confirm compatibility if you’re replacing an older Siemens part or integrating with a legacy control panel.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eReady for dependable, code-compliant isolation and protection at the point of use? The Siemens HF365 400 A 3P 600 V Safety Switch, NEMA 1, Fusible is available from AmpState—plus expert compatibility guidance to help you confirm fit quickly and confidently.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46412805898402,"sku":"HF365","price":10.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hf365-400a-3p-600v-safety-switch-nema-1-fusible-ampstate-612.webp?v=1789027973","url":"https:\/\/www.ampstate.com\/products\/siemens-hf365-400a-3p-600v-safety-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}