178B5024 by Danfoss

The 178B5024 is a low-voltage AC drive produced by Danfoss for the VLT 2800 Low Voltage Drives series. Acting as a variable-frequency inverter, it adjusts output frequency and voltage to regulate the speed and torque of three-phase induction motors used in process automation. This makes it suitable for pumps, fans, and small conveyors that need controlled acceleration, steady running speed, or reduced energy use at partial load. Its compact drive format supports installation in industrial control cabinets where dependable motor control is required, and it can be used wherever a simple general-purpose inverter is needed for routine machine duties.

The unit has a rated motor output of 0.55 kW, equivalent to 0.75 HP. Input supply must be 380-480 V ±10% 50/60 Hz, allowing operation from common industrial AC sources across standard utility frequencies. It is designed for three-phase input power, which supports balanced current draw and smooth motor operation during acceleration and speed regulation. The housing has an IP20 rating, so it should be installed inside an enclosure that limits access to live parts. This arrangement suits cabinet-mounted applications where upstream protection and internal panel layout are handled as part of the overall machine design.

The cooling surfaces have a coating finish, which adds resistance to moisture and dust in enclosed installations. Its slim book-style enclosure helps conserve panel width when units are mounted side by side on a back plate or DIN rail, which is useful in narrow cabinets. A built-in display (SLCP) allows local parameter entry and status viewing without an external keypad, so routine adjustments can be made directly at the unit. This version is supplied without a fieldbus option, and it also omits an RFI filter, so external EMC measures may be needed for some installations. It uses a standard hardware setup and is intended for general process duties rather than a dedicated application package.