Product Description:

The 195N1121 is an AC variable frequency drive produced by Danfoss as part of the VLT 2800 Low Voltage Drives series. The unit converts fixed three-phase mains power into voltage and frequency suitable for controlling motor speed, allowing industrial pumps, fans, and conveyors to respond to changing load demands. Its integrated speed regulation and protective functions support accurate torque control while reducing unnecessary energy consumption in variable-load applications.

The drive is rated to operate a motor with a mechanical output of 15.0 kW. It draws a nominal supply current of 32.0 A and delivers the same nominal current through its output terminals during steady operation. At 400 V, the supply current corresponds to 22.2 kVA of apparent power, while a power factor of 0.90 indicates the relationship between real and apparent input power. Overall conversion efficiency reaches 97%, and the specified full-load heat dissipation is 562 W. The IP20/NEMA 1 enclosure helps prevent accidental finger contact with internal components and is intended for installation in a dry, ventilated control cabinet.

For intermittent overloads, the inverter can supply up to 51.2 A to the motor, providing additional current for acceleration and temporary torque peaks without an immediate trip. Installation is permitted at altitudes up to 1000 m above sea level before output derating becomes necessary. The surrounding air temperature may reach 45 °C during operation, provided that the required ventilation and mounting clearances are maintained around the heat sink. Upstream circuit protection uses a 50 A IEC or UL pre-fuse, and shielded motor cables may extend up to 40 m to help control radiated electrical interference. The assembly weighs 18.5 kg, so its mounting surface and fasteners must support the drive securely inside the control cabinet.