0.4-630kW · 200V, 400V, 575V and 690V · SLD, LD, ND and HD ratings · IP20, IP00 or IP55 · STO to SIL3
The FR-A800 is the high performance inverter in the Mitsubishi Electric FR series, succeeding the FR-A700. Real sensorless and closed-loop vector control, four overload ratings, anti-sway crane control and a built-in PLC function suit it to high-torque machinery, hoists, positioning and process lines.
The FR-A800 covers 0.4kW to 630kW. At 400V, standard FR-A840 units run from 0.4kW to 280kW (normal duty), FR-A842 separated-converter units continue to 500kW, and the FR-A846 is an IP55 enclosed version from 0.4kW to 132kW. FR-A820 models cover 200V supplies to 90kW, and 575V and 690V families take the range to 630kW, with parallel systems beyond that. Every drive offers four overload ratings, from super light duty (110% for 60 seconds) for fans and pumps to heavy duty (200% for 60 seconds) for high-inertia and impact loads.
Control is where the FR-A800 stands apart. Alongside V/F, advanced magnetic flux vector and PM sensorless vector, real sensorless vector control gives 200% starting torque at 0.3Hz and a 1:200 speed range with no encoder, and closed-loop vector control with an encoder option reaches a 1:1500 speed range and 130Hz speed response. Built-in functions cover anti-sway crane control, simple positioning and a PLC function, FR-A800 Plus versions are tailored to cranes and roll-to-roll lines, and three option slots accept fieldbus, encoder and I/O cards.
Safe torque off is built in, with an EMC filter, a brake transistor on smaller ratings and coated circuit boards. FR-A800-E models add 100Mbps Ethernet with CC-Link IE Field Network Basic and Modbus/TCP. For FR-A700 replacements, installation dimensions are the same and FR Configurator2 copies the existing parameters. For fan and pump duty, the dedicated FR-F800 Series is usually the more economical choice.
| Specification | FR-A800 Series |
|---|---|
| Type | High performance inverter |
| Power and supply (ND) | FR-A820: 3-phase 200V class, 0.4-90kW FR-A840: 3-phase 400V class, 0.4-280kW |
| FR-A842 (separated converter): 400V, 315-500kW FR-A846 (IP55): 400V, 0.4-132kW | |
| 575V and 690V models (FR-A860, FR-A870, FR-A872): up to 630kW (SLD) [confirm ranges] Series total 0.4-630kW; parallel systems to approx. 1,500kW | |
| Overload ratings | SLD: 110% 60s, 120% 3s LD: 120% 60s, 150% 3s ND: 150% 60s, 200% 3s HD: 200% 60s, 250% 3s |
| Control methods | V/F, advanced magnetic flux vector, real sensorless vector, optimum excitation, PM sensorless vector, vector control with encoder (option card) |
| Output frequency | 0.2-590Hz (400Hz maximum under vector control) |
| Speed control range | Advanced magnetic flux vector 1:120; real sensorless vector 1:200; vector control 1:1500 |
| Speed response | Real sensorless vector 50Hz; vector control 130Hz |
| Starting torque | 200% at 0.3Hz (ND, real sensorless vector) |
| Application functions | Anti-sway crane control, simple positioning, built-in PLC function; FR-A800 Plus versions for cranes (CRN) and roll-to-roll (R2R) |
| Braking | Built-in brake transistor to 22kW (400V models to 55kW) |
| EMC filter | Built in, EN 61800-3 second environment C3 (C2 selectable on IP55 models) |
| Functional safety | Safe torque off; PL e / Cat. 3 (ISO 13849-1), SIL3 (IEC 61508, IEC 62061, IEC 61800-5-2) |
| Communication | Standard: RS-485, Mitsubishi inverter protocol and Modbus RTU FR-A800-E: built-in 100Mbps Ethernet, CC-Link IE Field Network Basic, Modbus/TCP Option cards (3 slots): PROFINET, EtherNet/IP, EtherCAT, PROFIBUS-DP, DeviceNet, CC-Link and others |
| Set-up and interface | USB host port (parameter copy to memory stick) and USB mini-B (PC); FR Configurator2 |
| Maintenance functions | Life diagnosis of main and control circuit capacitors, inrush resistor and cooling fans; three maintenance timers; internal temperature sensor |
| Enclosure | IP20 up to 30kW, IP00 from 37kW [confirm]; FR-A846 IP55 |
| Ambient temperature | −10°C to +50°C (LD, ND, HD); −10°C to +40°C (SLD and IP55 models) |
| Circuit boards | Coated to IEC 60721-3-3 3C2/3S2 (standard on European models) |
| Standards | CE, UKCA, UL, cUL, EAC; marine approvals (DNV, ABS, BV, LR, NK) |
| Replaces | FR-A700 Series |
Source: Mitsubishi Electric global FR-A800 series and line-up pages; Mitsubishi Electric Europe FR-A800 series page and Frequency Inverters FR-FAMILY product catalogue (UK edition); FR-A800-E Selection Guide; A800-E/F800-E Ethernet Function Manual; FR-A800/F800 IP55 flyer; new product release 24-5E (Mar 2025). Checked 20 October 2026.
For technical information, brochures and further product details, visit our downloads page.
0.4kW to 630kW across the series. At 400V, standard FR-A840 units run to 280kW at normal duty, FR-A842 separated-converter units to 500kW, and the IP55 FR-A846 to 132kW. 200V FR-A820 models run to 90kW, and 575V and 690V models take the range to 630kW.
It depends on the load. Super light duty (110% for 60 seconds) and light duty (120%) suit fans, pumps and other variable torque loads. Normal duty (150%) is the default for general machinery, and heavy duty (200%) is for high-inertia loads, hoists and impact loads. A lighter rating lets the same inverter run a larger motor.
Not for most applications. Real sensorless vector control gives 200% starting torque at 0.3Hz and a 1:200 speed range without one. Where you need positioning, a 1:1500 speed range or a 130Hz speed response, closed-loop vector control uses an encoder option card.
The FR-A800-E has built-in 100Mbps Ethernet with CC-Link IE Field Network Basic and Modbus/TCP. The standard FR-A800 has RS-485 with Modbus RTU. Both accept option cards for PROFINET, EtherNet/IP, EtherCAT and other fieldbuses.
Yes. Mitsubishi Electric designed the FR-A800 to be compatible with the FR-A700: installation dimensions are the same, FR Configurator2 copies FR-A700 parameters, and the FR-A8TAT adaptor lets you reuse the FR-A700 control terminal block.
Yes. The FR-A846 is a 400V IP55 enclosed version from 0.4kW to 132kW, for installation outside an electrical panel.
The FR-A800 is built for demanding control: sensorless and closed-loop vector control, heavy duty ratings, anti-sway crane control. The FR-F800 is designed for fans and pumps, with variable torque ratings, PID and multi-pump control and energy-saving excitation control, and is usually the more economical choice for that duty.
Mitsubishi Electric manuals and brochures for the FR series are in our download library.
Browse the FR-A800 range by supply and rating, or send us the motor details, duty and control requirement, or the model number of the drive you are replacing, and we will specify the right model.
Contact
Betech 100pt Ltd
Four Square Buildings, Thomas Street
Heckmondwike, West Yorkshire, WF16 0LS
Telephone: 01924 411921
Email: sales@betech.co.uk
Opening hours: 8:00 to 17:00
