{"product_id":"abb-os400j12-disconnect-switch","title":"ABB OS400J12 - 400A, Disconnect Switch","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the ABB OS400J12 – a rugged 400A disconnect switch engineered for the exacting demands of modern industrial and commercial electrical systems. This main isolation device delivers dependable disconnection under load, supports proper lockout\/tagout procedures, and is built for long-term durability in challenging environments. If safety, reliability, and predictable performance are non-negotiable, the ABB OS400J12 is designed to deliver.\u003c\/p\u003e \u003ch2\u003eKey advantages of the ABB OS400J12\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e400A disconnect capability\u003c\/strong\u003e — provides a dedicated, reliable main isolation point for substantial electrical circuits, enabling safe maintenance and system changes.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLockout\/Tagout readiness\u003c\/strong\u003e — designed to integrate with standard safety practices, helping protect personnel during service, testing, and configuration work.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUnder-load disconnection reliability\u003c\/strong\u003e — engineered to perform cleanly when a circuit is energized, reducing the risk of arcing or partial disconnections and improving overall safety.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable, long-term performance\u003c\/strong\u003e — robust construction and components built to withstand the rigors of industrial use, supporting lower maintenance costs and less downtime over time.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho should consider the ABB OS400J12?\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePlant engineers designing or upgrading electrical distribution and protection schemes\u003c\/li\u003e \u003cli\u003eMaintenance teams seeking a dependable main disconnect for routine servicing and LO\/TO procedures\u003c\/li\u003e \u003cli\u003eElectrical contractors specifying safer, compliant isolation devices for commercial or industrial facilities\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical use scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRoutine maintenance or testing that requires a guaranteed isolation point without compromising equipment safety.\u003c\/li\u003e \u003cli\u003eEmergency or planned shutdowns where rapid, reliable disconnection under load minimizes risk to personnel and assets.\u003c\/li\u003e \u003cli\u003eSystem upgrades, reconfigurations, or expansions that need a robust main disconnect to control power flow safely.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose this ABB disconnect switch over generic options\u003c\/h3\u003e\n\u003cp\u003eThe ABB OS400J12 stands apart through its focus on safety-first operation and dependable performance under load. Its lockout\/tagout compatibility is not an afterthought—it's built into the design, helping facilities maintain compliance and protect workers during maintenance. The combination of a solid 400A rating with durable construction provides a reliable, long-term solution for critical power isolation that you can trust day after day.\u003c\/p\u003e \u003ch3\u003eGuidance for integration and care\u003c\/h3\u003e\n\u003cp\u003eWhen incorporating the ABB OS400J12 into your electrical distribution, plan for a clear isolation point within appropriate switchgear or panel layouts. Regularly inspect for signs of wear or corrosion, ensure all connections remain torque-appropriate, and verify that labeling and lockout provisions remain visible and accessible. A disciplined maintenance routine will help sustain reliable disconnection performance and extend the life of the device.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default Title","offer_id":46383726198946,"sku":"OS400J12","price":2710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/disconnect_switches_generic_8c728082-adc2-48bb-927c-a16dea9c9641.png?v=1765252776","url":"https:\/\/www.ampstate.com\/products\/abb-os400j12-disconnect-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}