15 horsepower VFD, ACS550-U1-031A-4, Variable Frequency Drive

15 horsepower VFD, ACS550-U1-031A-4, Variable Frequency Drive


Product Overview

In Stock, In Houston. Limited Availability.

The ABB ACS550-U1 variable frequency drive is simple to install and commission and is user friendly. The ACS550 VFD has Fieldbus communication protocol, and common software tools for sizing, commissioning, maintenance, along with common spare parts. This VFD is ideal for pumps and fans or constant‑torque use such as conveyors.

  • 15 Horsepower
  • Easy installation & hassle‑free commissioning
  • Superior control panel for intuitive use
  • Patented swinging choke for advanced harmonic reduction
  • Standard with Integral EMC filter for first environment
  • Built‑in Modbus communication protocol
  • Internally mountable fieldbus adapters
  • UL, cUL listed, CE, C-Tick, Gost-R approved (600V product is CSA approved, not CE)



  • 15 Horsepower
  • General Purpose
  • Sensorless Vector Control
  • 0.75 to 550hp
  • 240V to 600V, 1 & 3-Phase
  • NEMA 1 (IP21), NEMA 12 opt.

ABB VFD (Variable Frequency Drive)

ABB standard drives are simple to buy, install, configure and use, saving considerable time. The drives have common user and process interfaces with multiple fieldbus options, common software tools for sizing, commissioning, maintenance, and common spare parts.

  • Patented swinging choke for superior harmonic reduction (R1-R4) and AC line reactor (R5-R8)
  • Sensorless vector control
  • FlashDrop
  • Coated boards for harsh environments
  • Built-in brake chopper
  • Many assistants including Start-up, Drive Optimizer
  • Real-time Clock, Diagnostics, Maintenance, Serial, and PID
  • Seismic Certification to ICC AC-156 Criteria

VFD with Swinging Choke for Pumps, Fans, Conveyer Belts, etc.

These drives are ideal in those situations where there is a need for simplicity to install, commission and use and where customizing or special product engineering is not required. The drives include several features as standard, such as swinging choke, EMC filter, and control panel.

Energy efficiency achieved with ABB standard drives can be easily monitored using the built-in counters, which display energy savings in kilowatt hours, carbon dioxide emissions, or local currencies.

  • Fieldbus adapters
  • Panel mounting kits
  • DriveWindow Light 2 software
  • Brake units and resistors
  • Encoder feedback module
  • Relay output extension module
  • Flange mounting kits
  • FlashDrop tool


Item Number:



Input Range VAC:
380 to 480 Volts AC

Input Phase:

HP (CT):
15 Horsepower

Amps (CT):
23 Amps

HP (VT):
20 Horsepower

Amps (VT):
31 Amps

Max. Frequency:
500 Hertz

Braking Type:
DC Injection;Dynamic Braking Transistor Optional (External)

AC Line Regenerative:

Closed Loop:

Motor Control-Max Level:
Open Loop Vector (Sensorless Vector)

Operator Controls:
Keypad Included

IP Rating:

NEMA Rating:

Advanced Control Panel incl. graphic backlit display capable of displaying 3 values or bar graphs.


Frame Size:

H x W x D:
9.1 in x 8 in x 23 in

Net Weight:
35 lb

Gross Weight:
54 lb