Danfoss Micro Drive FC51 Series Variable Frequency Drives
The Micro Drive FC51 series by Danfoss is a line of compact entry-to-mid-range variable frequency drives covering 0.75 to 22 kW. It is one of the best-known Danfoss VFD series: easy to commission, reliable in service, and fully compatible with IE2/IE3 induction motors.
The FC51 supports single-phase 220 V input (suffix -1P) and three-phase 380 V input (suffix -3P). The built-in AutoAdapt technology automatically tunes drive parameters to the motor without manual optimisation — a feature valued in large-scale pump and fan installations.
How to Choose a Danfoss FC51 Model — Lineup Overview
14 active SKUs with non-zero price cover 0.75 to 22 kW. Selection is based on motor power and supply voltage.
Single-phase 1×220 V supply
- 132F0003 — 0.75 kW, output 3×220 V — from 10 134 UAH
- 132F0005 — 1.5 kW, output 3×220 V — from 13 684 UAH
- 132F0007 — 2.2 kW, output 3×220 V — from 17 062 UAH
Three-phase 3×380 V supply
- 132F0018 — 0.75 kW — from 13 790 UAH
- 132F0020 — 1.5 kW — from 17 456 UAH
- 132F0022 — 2.2 kW — from 17 522 UAH
- 132F0024 — 3.0 kW — from 24 787 UAH
- 132F0026 — 4.0 kW — from 26 882 UAH
- 132F0028 — 5.5 kW — from 31 333 UAH
- 132F0030 — 7.5 kW — from 35 523 UAH
- 132F0058 — 11 kW — from 51 594 UAH
- 132F0059 — 15 kW — from 59 606 UAH
- 132F0060 — 18.5 kW — from 73 663 UAH
- 132F0061 — 22 kW — from 86 512 UAH
For up to 2.2 kW on a single-phase 220 V supply, models 132F0003/0005/0007 are the direct choice without a transformer. The top of the FC51 range is 22 kW (132F0061); for higher ratings Danfoss offers the FC51e or VLT HVAC Drive FC102 series.
Danfoss FC51 Technical Specifications
- Power range: 0.75–22 kW
- Supply voltage: 1×200–240 V or 3×380–480 V
- Output frequency: 0–132 Hz (standard mode), up to 1 000 Hz (special mode)
- Enclosure rating: IP20
- Built-in braking module: up to 7.5 kW
- AutoAdapt: automatic motor parameter adaptation
- Communication: RS-485 ModBus RTU (optional)
- Analogue inputs: 2×AI; digital inputs: 4×DI
- Overload capacity: 160% for 60 s
Typical Applications for Danfoss FC51
- Pumps and fans — EC-plus technology and AutoAdapt deliver up to 50% energy savings versus fixed-speed drives. See drives for pumps.
- Conveyor equipment — minimal commissioning effort (fewer than 5 parameters needed to start) reduces on-site time.
- Air conditioning and refrigeration — stable operation from -10 to +50°C without forced cooling.
- Mixing and dosing equipment — accurate open-loop speed regulation in V/f mode.
Accessories and Related Equipment
For a complete FC51 installation: LCP 11 or LCP 12 remote keypad, braking resistors for models above 7.5 kW, Class A/B EMC filters, input line reactors, and RS-485 communication cards for larger models.
See also: all Danfoss VFDs, VFD options and accessories, full VFD catalogue.
