{"product_id":"allen-bradley-140mt-d9e-b40","title":"140MT-D9E-B40","description":"\u003ch2\u003eOverview of Allen Bradley 140MT-D9E-B40\u003c\/h2\u003e\n\nThe Allen Bradley 140MT-D9E-B40 is a motor protection circuit breaker engineered to deliver reliable overload and short-circuit protection for three-phase motor circuits. This D-frame device features an adjustable thermal current range of 2.5 to 4.0 amperes, making it suitable for protecting smaller motor loads in industrial automation environments. The circuit breaker incorporates a fixed magnetic trip set at 14 times the rated current, providing fast protection against short-circuit faults while maintaining Trip Class 10 overload characteristics. Built with high breaking capacity, the 140MT-D9E-B40 supports voltages up to 690V AC and is designed for DIN rail mounting, allowing straightforward integration into control panels and motor control centers. As part of Rockwell Automation's comprehensive motor protection portfolio, this device combines manual motor starting capability with phase loss sensitivity protection, offering a cost-effective solution for non-severe duty motor control applications.\n\n\u003ch2\u003eKey Features of Allen Bradley 140MT-D9E-B40\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAdjustable thermal overload protection from 2.5 to 4.0 amperes with Trip Class 10 response\u003c\/li\u003e\n  \u003cli\u003eFixed magnetic trip at 14x rated current for short-circuit protection\u003c\/li\u003e\n  \u003cli\u003eHigh breaking capacity rated for voltages up to 690V AC\u003c\/li\u003e\n  \u003cli\u003eDIN rail mounting per EN 60715 standard for easy installation\u003c\/li\u003e\n  \u003cli\u003ePhase loss sensitivity protection for three-phase motor circuits\u003c\/li\u003e\n  \u003cli\u003eIP20 housing protection rating suitable for control panel environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specs of 140MT-D9E-B40\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame Size:\u003c\/strong\u003e D-Frame\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent Range:\u003c\/strong\u003e 2.5 to 4.0A adjustable thermal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMagnetic Trip:\u003c\/strong\u003e Fixed at 14 x Ie (rated current)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrip Class:\u003c\/strong\u003e 10A overload protection\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBreaking Capacity:\u003c\/strong\u003e High performance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e Up to 690V AC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e DIN rail (EN 60715)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProtection Rating:\u003c\/strong\u003e IP20 housing, IP10 terminals\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 72.1 mm W x 89.2 mm D\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications \/ Use Case\u003c\/h2\u003e\n\nThe Allen Bradley 140MT-D9E-B40 motor protection circuit breaker is deployed across a wide range of industrial motor control applications where reliable protection is required for fractional horsepower to small integral horsepower motors. Common installations include pump control systems, conveyor drives, fan motors, and process equipment in manufacturing facilities. The device serves as both a disconnect means and protection element, simplifying control panel design while ensuring compliance with IEC 60947-4-1 motor starter standards under utilization category AC-3. Its adjustable thermal range allows precise matching to specific motor full-load current ratings, preventing nuisance tripping while maintaining robust protection against overload conditions. The fixed magnetic trip provides deterministic short-circuit protection, coordinating with upstream protective devices in group motor installation configurations. This circuit breaker is particularly well-suited for single motor branch circuits where manual on\/off control is sufficient, eliminating the need for more complex contactor-based starters in non-severe duty applications.\n\n\u003ch2\u003eRelated Resources\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/\" target=\"_blank\"\u003eLeadTime.ca – Industrial Automation Components \u0026amp; Repair Services\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/collections\/allen-bradley\" target=\"_blank\"\u003eView All Allen Bradley Products\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/how-to-choose-the-right-soft-starter-for-your-motor-application\/\" target=\"_blank\"\u003eHow to Choose the Right Soft Starter for Your Motor Application\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/products\/allen-bradley-194e-sy\" target=\"_blank\"\u003eAllen Bradley 194E-SY Disconnect Switch\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/products\/allen-bradley-25b-d2p3n104\" target=\"_blank\"\u003eAllen Bradley 25B-D2P3N104 PowerFlex 525 AC Drive\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":47870770708779,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/4671\/7995\/files\/Leadtime_473c6ef2-29c0-4942-9b8f-a4f72f771d39.png?v=1723532487","url":"https:\/\/leadtime.ca\/products\/allen-bradley-140mt-d9e-b40","provider":"LEADTIME","version":"1.0","type":"link"}