Danfoss 131B6973 VLT HVAC Drive FC-102, a 400 kW three-phase AC variable frequency drive designed for high-power HVAC motor control, pumps, fans, compressors and building automation systems.
£34,588.00
The Danfoss 131B6973 is a powerful and highly efficient AC variable frequency drive (VFD) designed for demanding HVAC and industrial motor control applications. As part of the advanced Danfoss VLT® HVAC Drive FC-102 series, it is engineered to deliver precise motor speed regulation, enhanced energy efficiency and reliable operation for large-scale ventilation, heating, cooling and pumping systems.
Developed specifically for HVAC applications, the FC-102 series incorporates intelligent control functions for pumps, fans and compressors. Its advanced monitoring capabilities and application-focused design help reduce energy consumption, minimise maintenance requirements and optimise overall system performance.
With a rated output power of 400 kW / 550 HP and a three-phase 380–480 V AC supply, the Danfoss 131B6973 is ideal for high-capacity HVAC equipment and industrial processes. Its IP54 / Type 12 enclosure provides excellent protection for installation in demanding environments.
Variable frequency drives such as the Danfoss FC-102 regulate motor speed by adjusting output voltage and frequency. This enables significant energy savings while improving process control and reducing mechanical stress on motors, pumps, fans and compressors.
The FC-102 series is specifically developed for HVAC applications and includes dedicated functionality for ventilation, heating and refrigeration systems. Its intelligent design supports modern building management systems while helping operators achieve lower lifecycle costs and greater operational reliability.
| Power | 400 kW |
|---|---|
| Voltage | 480 V |
| Phase | Three Phase |
| IP Rating | IP54 |
| Series | VLT® HVAC Drive FC-102 |
| Part Number | 131B6973 |
| Product type | AC variable frequency drive |
| Rated output power | 400 kW / 550 HP |
| Input voltage | 380–480 V AC |
| Input phases | 3-phase |
| Output phases | 3-phase |
| Frequency | 50 / 60 Hz |
| Protection rating | IP54 / Type 12 |
| Frame size | E1 |
| RFI filter | Class A2 (C3) |
| Control panel | Graphical local control panel |
| Brake chopper | No brake chopper |
| PCB coating | Coated PCB |
| Mains option | No mains option |
| Dimensions (H × W × D) | approx. 2000 × 600 × 505 mm |
| Net weight | approx. 257 kg |
| EMC Filter | Industrial |
This drive is designed for controlling large AC motors used in HVAC systems, including pumps, fans, compressors and ventilation equipment.
The Danfoss 131B6973 supports motors rated up to 400 kW / 550 HP.
The drive operates from a three-phase 380–480 V AC supply.
The unit features an IP54 / Type 12 enclosure designed to provide enhanced protection in demanding industrial and commercial environments.
Yes, this model includes a graphical local control panel for easy setup, monitoring and operation.
Danfoss VLT® HVAC Drives are widely used by building services engineers, contractors and automation specialists to deliver reliable motor control, energy efficiency and long-term operational performance in critical HVAC applications.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...