0.75-630kW · 3-phase 200V and 400V · LD and SLD ratings · IP20/IP00 or IP55 · BACnet and Modbus built in
The FR-F800 is the fan and pump inverter in the Mitsubishi Electric FR series, succeeding the FR-F700. Advanced optimum excitation control cuts motor losses at part load, and dedicated functions such as dual PID, multi-pump control, cleaning, sleep and fire mode handle variable torque duty without an external controller.
The FR-F800 runs from 0.75kW to 110kW on 200V and 0.75kW to 315kW on 400V at light duty, with a super light duty rating that takes the same units to 132kW and 355kW. FR-F842 units with a separate FR-CC2 converter cover 355kW to 560kW (630kW at super light duty), and the FR-F846 is an IP55 enclosed version from 0.75kW to 160kW for installation outside a panel. The two ratings, light duty (120% for 60 seconds) and super light duty (110% for 60 seconds), are set by parameter to suit the load.
Energy saving is built into the control. Optimum and advanced optimum excitation control adjust the motor flux to the load, and Mitsubishi Electric quotes motor efficiency around 30% higher than V/F control at light load. The FR-F800 also runs IPM permanent magnet motors, and its energy saving monitor shows the power saved. For water and wastewater, building services and process plant, it carries the functions those systems need: two PID loops with pre-charge, control of up to four pumps from one inverter, forward and reverse cleaning to clear blockages, sleep mode, load characteristic fault detection for clogged filters or broken belts, flying start and fire mode.
RS-485 with Modbus RTU and BACnet MS/TP is standard, and FR-F800-E models add Ethernet with BACnet/IP, Modbus/TCP and CC-Link IE Field Network Basic. Safe torque off to SIL3 and PL e, an EMC filter, a PLC function and a 24V DC control supply input are built in. For machinery that needs vector control or heavy duty ratings, see the FR-A800 Series.
| Specification | FR-F800 Series |
|---|---|
| Type | Energy-saving inverter for fans and pumps |
| Power and supply | FR-F820: 3-phase 200-240V, 0.75-110kW LD (132kW SLD) FR-F840: 3-phase 380-500V, 0.75-315kW LD (355kW SLD) FR-F842 with FR-CC2 converter: 400V, 355-560kW LD (630kW SLD) FR-F846 (IP55): 400V, 0.75-160kW |
| Overload ratings | LD: 120% 60s, 150% 3s SLD: 110% 60s, 120% 3s |
| Control methods | V/F, optimum excitation, advanced optimum excitation, advanced magnetic flux vector, PM (IPM) motor control |
| Output frequency | 0.2-590Hz under V/F control; 400Hz maximum under other control methods |
| Fan and pump functions | Two PID loops with pre-charge; multi-pump control (up to 4 pumps); cleaning (forward/reverse); sleep; load characteristic fault detection; flying start; power failure restart and deceleration to stop; regeneration avoidance; fire mode; motor preheat |
| Energy monitoring | Energy saving monitor; pulse output of power consumption |
| EMC filter | Built in, switchable; EN 61800-3 second environment C3 when on |
| DC reactor | External FR-HEL reactor required from 75kW |
| Functional safety | Safe torque off; SIL3 (IEC 61508, IEC 62061, IEC 61800-5-2), PL e / Cat. 3 (ISO 13849-1), on units produced from June 2018 |
| Communication | Standard: RS-485, Mitsubishi inverter protocol, Modbus RTU and BACnet MS/TP |
| FR-F800-E: 100Mbps Ethernet, BACnet/IP, Modbus/TCP, CC-Link IE Field Network Basic | |
| Option cards: CC-Link, CC-Link IE Field, PROFIBUS-DP, DeviceNet and others | |
| PLC function | Built in, programmed with FR Configurator2 |
| Maintenance functions | Life diagnosis; 10-year design life for cooling fans and capacitors (calculated); three maintenance timers |
| Enclosure | IP20 up to 22kW, IP00 from 30kW [confirm]; FR-F846 IP55 |
| Ambient temperature | −10°C to +50°C (LD); −10°C to +40°C (SLD) |
| Circuit boards | Coated to IEC 60721-3-3 3C2/3S2 on -60 models |
| Standards | CE, UKCA, UL, cUL, EAC |
| Replaces | FR-F700 and FR-F700P Series |
Source: Mitsubishi Electric Europe FR-F800 series page and Frequency Inverters FR-FAMILY product catalogue; global FR-F800 feature pages; FR-F800 Instruction Manual (Detailed) and EMEA manual 292550; FR-A800/F800 Safety Stop Function Manual BCN-A23228-001-G (Nov 2023); A800-E/F800-E Ethernet Function Manual; “Replacement of FR-F700(P) with FR-F800” BCN-C21002-171K. Checked 20 October 2026.
For technical information, brochures and further product details, visit our downloads page.
0.75kW to 630kW. At light duty, 200V models run to 110kW and 400V models to 315kW, with FR-F842 separated-converter units from 355kW to 560kW. The super light duty rating takes each size further, up to 630kW on the largest FR-F842. The IP55 FR-F846 runs to 160kW.
Overload capacity. Light duty allows 120% for 60 seconds at up to 50°C ambient; super light duty allows 110% for 60 seconds at up to 40°C. Fans and centrifugal pumps rarely need much overload, so super light duty lets a smaller inverter run the same motor.
Yes. Multi-pump control runs up to four pumps from one inverter, bringing pumps on and off to hold the PID set point.
Yes. BACnet MS/TP over RS-485 is standard on every model, and FR-F800-E models add BACnet/IP over Ethernet, alongside Modbus RTU and Modbus/TCP.
Yes. The FR-F800 has an emergency drive function, known as fire mode, which keeps the inverter running in an emergency such as a fire, for example on smoke extraction fans.
Yes. The FR-F846 is a 400V IP55 version from 0.75kW to 160kW, for installation outside an electrical panel.
Yes. Mounting dimensions are the same as the FR-F700 and FR-F700P except on some capacities (the FR-F720(P)-75K uses an attachment), the FR-A8TAT adaptor lets you reuse the old control terminal block, and most parameter numbers are unchanged.
The FR-F800 is built for variable torque loads, with fan and pump functions and energy-saving excitation control. The FR-A800 is the high performance inverter, with sensorless and closed-loop vector control and heavy duty ratings for machinery, hoists and positioning.
Mitsubishi Electric manuals and brochures for the FR series are in our download library.
Browse the FR-F800 range by supply and rating, or send us the motor rating, the fan or pump duty and the network you need, 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
