FC-051PK75T4E20H3 Danfoss
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The Danfoss FC-051PK75T4E20H3 is part of the VLT FC 51 Micro Drives series and has a power rating of 0.75 kW or 1.0 HP. It operates on three-phase 380 - 480 VAC mains voltage and has IP20 protection. The drive includes an RFI filter rated Class A1/B.
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Product Description:
The FC-051PK75T4E20H3 is an AC variable frequency drive manufactured by Danfoss as part of the VLT FC 51 Micro Drives series. This compact inverter converts fixed-frequency three-phase mains power into a controlled output waveform that allows automation controllers to match motor speed to changing load conditions. The controlled waveform adjusts motor voltage and frequency together, supporting smooth acceleration and deceleration as operating demands change. By reducing unnecessary motor speed and improving motion accuracy, the unit supports conveyors, pumps, and small processing machines in industrial plants.
The drive has a motor output rating of 0.75 kW, which corresponds to 1.0 HP. This output capacity is suitable for small centrifugal pumps and gear-motor conveyors where cabinet space and heat must be limited. The power section accepts an input of 380–480 VAC and feeds the inverter bridge without requiring a transformer. This voltage range covers common high-voltage industrial mains used in production facilities. The input requires a three-phase supply, which helps minimize torque ripple and reduce motor heating compared with operation from a single-phase source. The control interface uses the VLT Micro Drive parameter structure, allowing consistent keypad navigation across multiple compatible frame sizes.
The open-chassis construction has an IP20 protection level, so the drive must be installed inside a suitable enclosure. Its accessible design provides direct terminal access for wiring during installation, while the surrounding enclosure supplies the additional barrier needed against contact and contaminants. An integrated electromagnetic compatibility network meets RFI Class A1/B limits, reducing conducted electrical noise on control panels without requiring an additional line filter. This filtering helps prevent drive-generated interference from affecting nearby control wiring and connected automation equipment. The type designation includes code 051, and the drive is compatible with current VLT FC 51 accessories. Its compact format allows it to fit into control cabinets used for small motor applications without requiring excessive mounting space.
