0.75 HP (.55 kW) to 100 HP (75 kW) @ 208 to 240V
1.0 HP (.75 kW) to 550 HP (355 kW) @ 380 to 480V


The ACS 550 is an adjustable frequency AC drive that achieves the ultimate in flexible motor control  performance. Offering three modes of motor control: V/Hz, Sensorless Vector and Flux Vector, the ACS550 performs accurate’ speed and torque control of any standard  squirrel cage motor.With drives ranging from 0.75 to 550 HP (0.55 to 355 kW), the ACS550 series features an ‘intuitively  obvious’ multilingual, full graphic display panel that also provides an assistant to aid users in  start-up. The control panel can be mounted on the cover of the drive, or remotely, and can upload,  store, and download parameters.The ACS550 comes equipped with an extensive library of preprogrammed application macros that, at  the touch of a button, allow rapid configuration of inputs, outputs, and parameters for specific  applications to maximize convenience and minimize start-up time.

The ACS550 can be used for the simplest to the most Demanding applications. Two integral option  slots can be configured with additional relay outputs as well as a host of different communication  bus adapters. An integral brake chopper is provided on all R1 and R2 frame size drives.

The ACS550 is available in both a Normal Duty Rating, and a Heavy Duty rating. The Normal Duty  Rating has a 10% short term overload rating, and the Heavy Duty rating has a 50% short term  overload rating for one (1) minute out of ten (10). Both ratings are capable of 180% of I2hd for 2  seconds out of each minute.

ABB's NEW ACS550 AC Drive (pictured): ACS550-U1
ABB’s NEW ACS550 AC Drive (pictured): ACS550-U1

Contact Joliet Technologies for Custom Drive Pricing.
Phone: (815) 725-9696 or
Toll Free: (866) 492-9888
Fax: (815) 725-9393
RFQ – Request for Quote

© 2004 ABB Inc. All rights reserved Specifications and pricing subject to change without notice.

Rev. E

Effective: 3/1/04
Supersedes: 9/2/03