{"product_id":"siemens-sn425-400a-3p-240v-disconnect-switch","title":"Siemens SN425 Disconnect Switch, 400A, 3-Pole, 240V","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens SN425 Disconnect Switch, 400A, 3-Pole, 240V\u003c\/strong\u003e is built to deliver safe, reliable isolation for demanding industrial electrical work. Designed for industrial service, maintenance, and replacement projects, this 3-pole disconnect switch provides robust performance when you need to routinely shut down and re-energize three-phase circuits.\u003c\/p\u003e \u003cp\u003eKey features at a glance\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 400 A — ready for heavy feeders, motors, and power buses in industrial settings\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3 poles — designed for true three-phase isolation\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240 V — suitable for common industrial power distribution schemes\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens — backed by a global service network and established compatibility within Siemens-compatible panels\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e SN425 — verify fit by part number and application requirements\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this disconnect switch matters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReliable isolation for routine maintenance, panel upgrades, or equipment replacement ensures worker safety and minimizes downtime.\u003c\/li\u003e \u003cli\u003eThree-pole design guarantees complete disconnection of three-phase circuits, reducing the risk of arc flash and accidental re-energization during service.\u003c\/li\u003e \u003cli\u003eIndustrial-grade construction from Siemens translates to consistent performance in challenging environments where outages or equipment failures can impact production schedules.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal use scenarios\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eIsolating three-phase feeders in service panels, motor control centers, and equipment rooms during maintenance\u003c\/li\u003e \u003cli\u003eTemporary or permanent replacement projects where reliable, code-conscious isolation is required\u003c\/li\u003e \u003cli\u003eRetrofits or upgrades in facilities that rely on Siemens-compatible components and a proven distribution strategy\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eHow to ensure the SN425 fits your application\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCompatibility should be confirmed by the part number (SN425) and your specific application requirements. If you’re unsure about fit or substitutions, our team can help verify compatibility based on your panel type, wiring configuration, and system voltage. \u003cem\u003eNeed help matching a part number or confirming compatibility? Message us and we’ll assist you.\u003c\/em\u003e\u003c\/p\u003e \u003cp\u003eWith the \u003cstrong\u003eSiemens SN425 Disconnect Switch\u003c\/strong\u003e, you get a purpose-built solution for dependable circuit isolation in demanding industrial environments—designed to support safe maintenance workflows and durable, long-term serviceability.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46415996977314,"sku":"SN425","price":460.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-sn425-disconnect-switch-400a-3-pole-240v-switchs-450.webp?v=1789221743","url":"https:\/\/www.ampstate.com\/products\/siemens-sn425-400a-3p-240v-disconnect-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}