Description:
This is an ABB ACS55-series micro drive (a compact variable frequency drive/VFD) used to control the speed of AC induction motors.
The ACS55 micro-drive family is designed for simple, low-power motor speed control in both commercial and light industrial settings. It’s typically used to drive small single-phase-to-three-phase AC induction motors (up to ~3 HP across the range) in applications like small conveyors, pumps, fans, mixers, gate operators, and similar OEM machinery. This particular size (0.37 kW / 0.5 HP) is one of the smallest in the range. It’s configured via DIP switches and potentiometers on the front panel rather than a full digital keypad, making it quick to commission without needing a separate programming tool.
Specs (from nameplate):
Model: ACS55-01E-02A2-2, IP20 enclosure rating
Input (U1): 1-phase, 200–240 V AC, 50/60 Hz
Input current (I1): 6.9 A
Output (U2): 3-phase, 0 to U1 (i.e., up to input voltage)
Output frequency (f2): 0–250 Hz
Output current (I2): 2.2 A
Motor power rating (Pn): 0.37 kW (1/2 HP)
Built-in EMC filter (the “E” in the model code)
Serial No.: 41322B0522
ABB internal reference: 3AFE68878349
Certifications: CE, RoHS, cULus Listed (Ind. Cont. Eq.), N713
