178B1390
by Danfoss
The 178B1390 is an AC variable-frequency drive manufactured by Danfoss for the VLT 2800 Low Voltage Drives series. In automated process lines it regulates induction-motor speed by altering output frequency, letting operators match torque to load while lowering energy use and mechanical stress.
This model accepts a mains supply of 200-240 V AC, and its input terminals are designed for Single Phase power, a configuration suited to light industrial panels where three-phase service is unavailable. The inverter delivers a continuous mechanical output of 0.55 kW, which corresponds to 0.75 HP on the motor shaft, making it appropriate for small pumps, mixers, and conveyors. A protection category of IP20 indicates that the housing prevents finger contact with live parts but requires a clean, cabinet-mounted environment for safe operation.
Physical layout and interface features support the drive’s role in space-restricted cabinets. The Bookstyle enclosure narrows the footprint so multiple units can be mounted side by side with minimal clearance. A Built In Display (SLCP) presents setpoints, status codes, and basic diagnostics without external tools. The drive is supplied without coating on its circuit boards, a detail acceptable in dry control rooms where conformal protection is unnecessary. Its hardware configuration is classified as Standard, meaning no optional I/O or application-specific firmware is fitted, which aligns with the catalog note of “no application option” and positions the product for general process-control duties.
