{"product_id":"mitsubishi-electric-fr-a820-18-5k-freqrol-a800-vfd-inverter","title":"Mitsubishi Electric FR-A820-18.5K FREQROL-A800 VFD Inverter","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDesigned for heavy-duty industrial motor control, the \u003cstrong\u003eMitsubishi Electric FR-A820-18.5K\u003c\/strong\u003e delivers precise speed and torque regulation across high-demand automation architectures. Operating on a three-phase input, this high-performance variable frequency drive features advanced vector control algorithms to optimize motor efficiency and system reliability. Designed for integration into demanding environments, its robust electrical design accommodates voltage fluctuations and handles high load dynamics, making it an essential component for critical machinery and process control systems.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eReal sensorless vector control and perfect closed-loop vector control capability.\u003c\/li\u003e\n  \u003cli\u003eRobust tolerance to line voltage fluctuations, maintaining stable output under varying grid conditions.\u003c\/li\u003e\n  \u003cli\u003eExcellent low-speed torque performance for demanding startup conditions.\u003c\/li\u003e\n  \u003cli\u003eIntegrated diagnostic and safety features to minimize operational downtime.\u003c\/li\u003e\n  \u003cli\u003eCompact IP20 enclosure designed for space-saving panel installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eHeavy-duty conveyors and material handling systems requiring high starting torque.\u003c\/li\u003e\n  \u003cli\u003eIndustrial fans, blowers, and positive displacement pumps.\u003c\/li\u003e\n  \u003cli\u003eExtruders, mixers, and centrifuges in chemical and plastics processing.\u003c\/li\u003e\n  \u003cli\u003eMetalworking machinery, cranes, and hoisting equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; width: 40%;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eMitsubishi Electric\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eFR-A820-18.5K\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eSeries\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eFREQROL-A800\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eProduct Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eVariable Frequency Drive (VFD) Inverter\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eRated Input Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eThree-phase 200 to 240 VAC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eRated Input Frequency\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e50 Hz \/ 60 Hz\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003ePermissible AC Voltage Fluctuation\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e170 to 264 VAC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003ePermissible Frequency Fluctuation\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e+\/- 5%\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eEnclosure Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eIP20\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eShipping Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e16.5 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThis unit serves as a functional upgrade path for legacy FR-A720-18.5K models. While physical dimensions and mounting holes are highly compatible, terminal configurations and control logic terminal layouts should be cross-referenced. Parameter sets can be migrated efficiently using FR Configurator2 software via the USB port.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eIn enclosed control cabinets, this IP20 unit dissipates considerable thermal energy under full 18.5 kW load. Ensure cabinet cooling fans are sized to handle the drive’s heat loss. To protect the inverter's input rectifier stage, an input AC reactor must be installed if the main power transformer capacity is 500 kVA or more, or if thyristor loads are on the same line.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eAlways use symmetric shielded motor cables grounded at both ends to reduce electromagnetic interference (EMI) and protect motor bearings from capacitive shaft currents. Ensure that the control circuit wiring is routed completely separate from the main circuit power lines to prevent induced signal noise.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0; font-weight: bold;\"\u003eCRITICAL WARNING:\u003c\/p\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0.5rem 0 0 0;\"\u003eHazard of electrical shock. Ensure all incoming AC mains power is completely isolated and locked out before starting installation. Wait at least 10 minutes after disconnecting power for the internal DC bus capacitors to discharge. Always measure the voltage between terminals P\/+ and N\/- with a reliable voltmeter to ensure it is below 45 VDC before touching connections.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 2rem; height: 2rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 1rem;\"\u003e1\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eMount the inverter vertically on a flat, non-combustible surface to ensure proper upward airflow through the cooling heatsink.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 2rem; height: 2rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 1rem;\"\u003e2\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eConnect three-phase AC input power strictly to terminals R\/L1, S\/L2, and T\/L3. Connecting power to output terminals U, V, and W will cause permanent damage to the unit.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 2rem; height: 2rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 1rem;\"\u003e3\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eVerify that the inverter ground terminal is connected to an independent earth ground with low resistance to conform to local safety standards.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102136426859,"sku":"FR-A820-18.5K","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/FR-A820-18-5K-jnij1lvwfrx.png?v=1776137435","url":"https:\/\/www.plcprotech.com\/tr\/products\/mitsubishi-electric-fr-a820-18-5k-freqrol-a800-vfd-inverter","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}