Product Description:

The 131B1387 drive is manufactured by Danfoss for the VLT FC 301 Automation Drives series. It is an AC inverter that converts fixed-frequency supply power into variable-frequency output for induction motors. This output allows the drive to regulate motor speed in automated plant equipment used for conveying, pumping, airflow control, and other variable-speed processes.

Rated motor power reaches 5.5 kW, allowing the inverter to supply the connected motor continuously under nominal operating conditions. This rating corresponds to 7.5 HP for applications that use imperial power units. The input section accepts 380–480 VAC, allowing direct connection to common industrial mains within that voltage range without a transformer. The unit requires three-phase power, which distributes current across all three input lines and supports operation with industrial motors. System communication is handled through the PROFIBUS DP V1 MCA 101 interface module, enabling remote parameter access, command exchange, status monitoring, and diagnostics through a compatible PLC or SCADA network.

The chassis has an IP20 enclosure rating, which protects internal components against contact with fingers and solid objects larger than 12.5 mm. Its open chassis design permits airflow when the drive is installed inside a suitable electrical cabinet. The unit has no extra EMC filter, so additional electromagnetic interference mitigation may be necessary when installation requirements exceed the capability of the built-in filtering. The drive uses uncoated circuit boards, making installation in a clean, dry, and adequately conditioned enclosure important for protecting its electronic components from moisture and airborne contaminants. It supports normal cabinet mounting for A, B, and C frames, allowing the chassis to be positioned in the intended orientation with the required ventilation clearances around the heat-dissipation surfaces.