Product Description:

The 134H2374 is a low-voltage AC variable-frequency drive produced by Danfoss within the VLT 2800 Low Voltage Drives series. In automation cells, it sits between the utility supply and an induction motor, converting fixed-frequency input into regulated output that matches changing process demands. By varying motor speed rather than relying on mechanical throttling, the unit can reduce energy consumption while maintaining steady flow, pressure, or agitation in continuous-duty process lines. Its compact design also supports installations where available control cabinet space is limited.

The drive delivers a continuous output of 1.5 kW, equivalent to 2.0 HP, making it suitable for small pumps, fans, and conveyors. The power section accepts a supply of 380–480 V ± 10% at 50/60 Hz from a three-phase network, allowing direct connection to common industrial feeders. An integrated brake chopper helps shorten stopping times when the drive controls loads with significant rotational inertia. For supervisory control, the unit includes a Profibus DP interface operating at 12 Mbaud, which provides parameter and status data to a connected PLC. The built-in SLCP display provides local access to operating settings and drive information. Its generic VLT parameter structure accommodates a range of flow, mixing, and conveying applications without requiring a dedicated application option.

The drive uses a book-style enclosure that conserves panel width and permits side-by-side mounting without derating. Its IP20 protection level prevents accidental finger contact with internal circuitry, although the unit must be installed inside a closed cabinet. The circuit boards have a protective coating that improves resistance to humidity and airborne chemicals commonly present in process facilities. An integrated EMC filter complies with EN 55011 Class A1 limits, helping keep conducted emissions within the requirements for industrial installations. The enclosure format supports orderly placement with adjacent control components, while the local display remains accessible from the front of the cabinet. Regulated motor output and network communication allow the drive to respond to changing commands from the automation system during normal operation.