131F0727 by Danfoss

The 131F0727 belongs to the VLT FC 102 HVAC Drives series produced by Danfoss. As a variable-frequency drive, it regulates fan and pump speed in building automation to match real-time air-handling or chiller demand, lowering energy use and mechanical stress. A graphical local control panel is installed for on-site parameter entry, and the drive is intended for dry indoor mounting in frames B, C, D, or E so it can be integrated inside standard switchgear enclosures without extra environmental hardening.

The drive handles a nominal apparent load of 6.93 kVA while drawing power from a 380 - 480 VAC feeder on a three-phase power network. When operated at 110% overload, it supports motors up to 4 kW, and internal dissipation remains limited to 124 W, easing cabinet cooling requirements. The printed circuit boards are not conformally coated, so installation must avoid corrosive atmospheres. There is no brake chopper, so the safe-stop input is handled by external contactors. EMC compliance is aided by the built-in RFI filter, and standard cable entries are provided because no Adaptation A modifications are present. The product ships with the latest release standard software and a standard language pack, and it has no optional A, B, C0, C1, or D hardware modules.

Mechanical dimensions are compact at 207 mm in depth and 375 mm in height, allowing alignment with other A2-frame components on DIN rails. Service weight is only 5.15 kg, which keeps panel handling manageable during mounting. The enclosure carries an ingress rating of IP21 / Type 1, limiting installation to indoor locations where drips and solid objects larger than 12 mm are excluded. The uncoated PCB and the absence of special adaptations limit the drive to clean, climate-controlled electrical rooms with dry air and controlled temperatures.