{"product_id":"square-d-400a-3-phase-safety-switch","title":"Square D - 400A, 3-Phase, Safety Switch","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D - 400A, 3-Phase, Safety Switch is a rugged, reliable solution for on\/off isolation and overcurrent protection in demanding industrial and commercial environments. Built as a compact, maintainable fusible switch, it delivers clean disconnects when you need them most, while keeping power distribution safe and accessible for service and maintenance teams.\u003c\/p\u003e \u003ch2\u003eKey Details that matter in the field\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePhase\u003c\/strong\u003e: 3-Phase\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDesign\u003c\/strong\u003e: Fusible safety switch engineered for dependable safety isolation and overcurrent protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this safety switch stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact, space-efficient footprint\u003c\/strong\u003e – Ideal for panelboards, motor control centers, and equipment rooms where space is at a premium without sacrificing performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintainable by design\u003c\/strong\u003e – Accessible fuse elements and straightforward wiring pathways make routine servicing and fuse replacement quick and safe.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliable motor disconnect capability\u003c\/strong\u003e – A robust three-phase switch ensures you can safely isolate motors and large loads during maintenance or in emergency scenarios.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIntegrated protection for power distribution\u003c\/strong\u003e – Combines isolation with overcurrent protection to guard branch circuits and critical loads in a single, dependable unit.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cp\u003eThis 400A, 3-phase safety switch is a practical choice for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMotor disconnects in pumps, fans, conveyors, and processing equipment\u003c\/li\u003e \u003cli\u003ePanelboard protection where a compact, easy-to-service fusible switch is required\u003c\/li\u003e \u003cli\u003eBranch circuit protection within centralized distribution panels in industrial facilities\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical considerations and tips\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMatch the switch’s 400 A, 3-phase rating to your system’s operating voltage and anticipated starting currents to ensure appropriate protection and performance.\u003c\/li\u003e \u003cli\u003ePlan for safe maintenance with standard lockout\/tagout procedures and clearly accessible fuse compartments to minimize downtime during servicing.\u003c\/li\u003e \u003cli\u003eUse this fusible switch as part of a thoughtful power distribution strategy that prioritizes safe isolation points near high-load equipment for quick and orderly shutdowns when needed.\u003c\/li\u003e \u003cli\u003eWhen integrating with panelboards, confirm mechanical fit and alignment with existing enclosures to streamline installation and future inspections.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy choose Square D for safety and reliability\u003c\/h2\u003e\n\u003cp\u003eSquare D safety switches are built with the needs of industrial and commercial environments in mind. The 400A, 3-Phase Safety Switch combines durable construction with practical maintenance advantages, giving you a dependable isolation point and protection mechanism that supports safer operation and easier service planning. It’s a purpose-built solution for facilities that rely on consistent power distribution and clear, safe motor control pathways.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default","offer_id":46390385639586,"sku":null,"price":1883.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/fusible_disconnect_generic_184bbd41-5ec7-4b3f-9e59-2e804523b38d.png?v=1765369871","url":"https:\/\/www.ampstate.com\/products\/square-d-400a-3-phase-safety-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}