{"product_id":"abb-ot400u03-disconnect-switch","title":"ABB OT400U03 - 400A, 3-Pole, Fused Disconnect Switch","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the ABB OT400U03, a 400 A, three-pole fused disconnect switch engineered for reliable electrical isolation in challenging industrial and commercial environments. It delivers dependable disconnection under load while supporting proper lockout\/tagout procedures—an essential combination for safety, uptime, and compliance during maintenance and service work.\u003c\/p\u003e \u003ch3\u003eWhat makes the OT400U03 stand out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e3-pole configuration with a 400 A amperage rating, providing robust isolation for three-phase systems\u003c\/li\u003e \u003cli\u003eIntegrated fused protection that interrupts fault currents, protecting downstream equipment and reducing the risk of cascading failures\u003c\/li\u003e \u003cli\u003eDesigned to support lockout\/tagout procedures, enabling safer maintenance and service operations\u003c\/li\u003e \u003cli\u003eBuilt for durable industrial use, delivering reliable performance in demanding environments\u003c\/li\u003e \u003cli\u003eSeamless integration with standard electrical assemblies and control panels for streamlined installation\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMotor feeders and three-phase power distribution in manufacturing lines\u003c\/li\u003e \u003cli\u003eEmergency shutdown points and maintenance isolations in commercial facilities\u003c\/li\u003e \u003cli\u003eUpgrading or retrofitting existing switchgear and panel assemblies requiring reliable isolation with fuse protection\u003c\/li\u003e \u003cli\u003eAny scenario where safe, controlled disconnection under load is essential for safety and equipment protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAmperage rating: 400 A\u003c\/li\u003e \u003cli\u003eNumber of poles: 3-pole\u003c\/li\u003e \u003cli\u003eProduct type: Fused Disconnect Switch\u003c\/li\u003e \u003cli\u003eBrand: ABB\u003c\/li\u003e \u003cli\u003eModel: OT400U03\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThe ABB OT400U03 provides a clear, reliable isolation point that supports strong safety practices. The fuse element adds critical protection for downstream equipment, while the switch offers a straightforward path to safe maintenance and service operations. In real-world use, this means shorter downtime during servicing, reduced risk during energy isolation, and improved overall reliability of a facility’s electrical system.\u003c\/p\u003e \u003cp\u003eBest results come from pairing this device with established lockout\/tagout procedures and routine inspection of both the switch and fuse elements. With its combination of high current capability, three-pole configuration, and fused protection, the OT400U03 is a dependable choice for maintaining safe, controlled electrical isolation in demanding environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default Title","offer_id":46383466250402,"sku":"OT400U03","price":4310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/disconnect_switches_generic_73256329-750b-46da-b81a-95969d077fbf.png?v=1765249118","url":"https:\/\/www.ampstate.com\/products\/abb-ot400u03-disconnect-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}