{"product_id":"mitsubishi-electric-fr-a740-3-7k-cht-fr-a700-series-inverter","title":"Mitsubishi Electric FR-A740-3.7K-CHT FR-A700 Series Inverter","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eEngineered for high-demand industrial applications, the \u003cstrong\u003eFR-A740-3.7K-CHT\u003c\/strong\u003e is a high-performance variable frequency drive (VFD) from the esteemed \u003cstrong\u003eFR-A700 Series\u003c\/strong\u003e by Mitsubishi Electric. Designed to operate on a 3-phase 400V class power supply, this drive provides precise speed and torque control for motors up to 3.7 kW. It utilizes advanced vector control algorithms to achieve excellent dynamic response and accuracy, making it suitable for both simple speed control and highly complex torque-matching applications.\u003c\/p\u003e\n\n\u003cp\u003eThis unit is widely utilized as a core speed control component in heavy industries and manufacturing lines. For facilities undergoing modernization or system upgrades, please note that the FR-A740-3.7K-CHT legacy model has been succeeded by the FR-A840-00126-2-60 drive, though it remains highly sought after as an exact-fit replacement spare part to prevent costly system re-engineering.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReal Sensorless Vector Control:\u003c\/strong\u003e Achieves high starting torque of 200% at ultra-low speeds (0.3 Hz) without requiring an encoder.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdaptive Tuning:\u003c\/strong\u003e Automatically measures and adapts to motor parameters to optimize performance across varying motor brands.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-in PLC Functionality:\u003c\/strong\u003e Allows users to program custom operational sequences and internal logic directly within the drive.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLong-Life Component Design:\u003c\/strong\u003e Equipped with cooling fans and capacitors designed for an estimated service life of up to 10 years under standard operating conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated EMC Filter:\u003c\/strong\u003e Reduces electromagnetic interference to simplify compliance with noise regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMaterial handling systems, conveyors, and overhead gantry cranes.\u003c\/li\u003e\n  \u003cli\u003eCentrifugal pumps, industrial fans, and localized ventilation blowers.\u003c\/li\u003e\n  \u003cli\u003eExtruders, mixers, and high-torque processing machinery.\u003c\/li\u003e\n  \u003cli\u003eMachine tool spindles and automated positioning systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003cth\u003eManufacturer\u003c\/th\u003e\n      \u003ctd\u003eMitsubishi Electric\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eModel \/ Part Number\u003c\/th\u003e\n      \u003ctd\u003eFR-A740-3.7K-CHT\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eProduct Series\u003c\/th\u003e\n      \u003ctd\u003eFR-A700 Series\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eInput Voltage Class\u003c\/th\u003e\n      \u003ctd\u003eThree-phase 380 to 480 V AC (50Hz \/ 60Hz)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eApplicable Motor Capacity\u003c\/th\u003e\n      \u003ctd\u003e3.7 kW\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eOutput Voltage\u003c\/th\u003e\n      \u003ctd\u003eThree-phase 380 to 480 V AC (Cannot exceed input voltage)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eControl Method\u003c\/th\u003e\n      \u003ctd\u003eV\/F Control, Advanced Magnetic Flux Vector Control, Real Sensorless Vector Control, Vector Control (with optional feedback card)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eCooling Method\u003c\/th\u003e\n      \u003ctd\u003eForced Air Cooling\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eEnclosure Protection Rating\u003c\/th\u003e\n      \u003ctd\u003eIP20\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eEstimated Shipping Weight\u003c\/th\u003e\n      \u003ctd\u003e4.0 kg\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eTerminal Symbol\u003c\/th\u003e\n      \u003cth\u003eTerminal Name\u003c\/th\u003e\n      \u003cth\u003eDescription\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eR\/L1, S\/L2, T\/L3\u003c\/td\u003e\n      \u003ctd\u003eAC Power Input\u003c\/td\u003e\n      \u003ctd\u003eConnects to the three-phase AC mains power supply.\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eU, V, W\u003c\/td\u003e\n      \u003ctd\u003eInverter Output\u003c\/td\u003e\n      \u003ctd\u003eConnects to the three-phase AC induction motor.\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eP\/+, N\/-\u003c\/td\u003e\n      \u003ctd\u003eDC Link Terminals\u003c\/td\u003e\n      \u003ctd\u003eConnection point for optional brake units or shared DC bus configurations.\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePR, PX\u003c\/td\u003e\n      \u003ctd\u003eBrake Resistor Terminals\u003c\/td\u003e\n      \u003ctd\u003eUsed for connecting an external discharge resistor for dynamic braking.\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEarth \/ Ground\u003c\/td\u003e\n      \u003ctd\u003eProtective Earth (PE)\u003c\/td\u003e\n      \u003ctd\u003eMust be connected to a secure local ground to prevent electrical noise and ensure safety.\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting Orientation:\u003c\/strong\u003e Install the drive vertically on a flat, non-flammable surface (such as a metal panel) to ensure proper natural convection and cooling.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClearance Requirements:\u003c\/strong\u003e Maintain a minimum clearance of 50 mm on both left\/right sides and 100 mm above\/below the unit for unrestricted airflow.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWiring Isolation:\u003c\/strong\u003e Separate power supply lines (R\/L1, S\/L2, T\/L3) and motor output lines (U, V, W) from control signal cables to avoid electromagnetic cross-talk.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Always ground the inverter and the motor securely. Ensure the ground resistance is 10 Ohms or less for 400V class equipment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmbient Temperature:\u003c\/strong\u003e Ensure the installation enclosure operates within an ambient temperature range of -10 degC to 50 degC (non-freezing).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102145012075,"sku":"FR-A740-3.7K-CHT","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/fr-a740-3.7k-cht-hejzek5t4j4.png?v=1776137433","url":"https:\/\/www.plcprotech.com\/products\/mitsubishi-electric-fr-a740-3-7k-cht-fr-a700-series-inverter","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}