ABB ACH580-31-046A-4 Ultra-Low Harmonic HVAC Drive 22 kW

A 22 kW HVAC drive with active front end

ACH580-31-046A-4 belongs to ABB’s ACH580-31 ultra-low harmonic (ULH) series, the wall-mounted HVAC drive that replaces the usual diode rectifier and choke with an active supply. The catalogue rates this type at 22 kW and 45 A on a 380 to 415 V network, built on frame R6. Because the drive draws a nearly sinusoidal current, ABB quotes a total harmonic distortion of 3% or less and a power factor of 1.0, which keeps transformers and generators from being oversized to cope with harmonics.

The ULH series suits buildings with weak grids, standby generators or strict harmonic rules, where a standard six-pulse drive such as the ACH580-01 would need external filters. It also keeps the motor voltage steady: the catalogue says the drive can boost its output voltage so the motor sees nominal voltage during line sags. See standard sizes in the AC drives category and the sister platform on the ABB ACS580 overview.

Technical specifications

Ratings, supply and harmonics

For 380 to 415 V ABB lists 45 A nominal for 22 kW and 43 A light duty for 22 kW; for 440 to 480 V the light-duty entry is 44 A for 30 hp. The ACH580-31 line spans 4 to 110 kW, so this 22 kW type is a mid-sized member sharing frame R6 with ratings from 33 A to 88 A. Light-duty values allow 110% overload for one minute in ten (about 47 A, derived).

Three wires in and three wires out are enough: no external line filter, multi-pulse transformer or active filter is required. ABB argues that this lowers installation and maintenance cost because fewer components need to be stocked as spares. The standard ratings are valid at +40 degrees C, and operation is specified from -15 to +50 degrees C.

Size, weight and enclosure

The wall-mounted R6 housing measures 771 x 252 x 392 mm and weighs 61 kg in IP21 form. IP55 / UL Type 12 enlarges the depth to 449 mm and the mass to 63 kg. Compared with the 22 kW ACH580-01 on frame R3, the ULH unit is taller, deeper and much heavier, because the active front end sits inside the same housing. Allow for this when replacing a standard drive.

Controls, options and network

The control program is identical to the rest of the ACH580 family: BACnet MS/TP, Modbus RTU and N2 as standard, override mode, four start interlocks, belt-loss detection, scheduling and PID control. Optional fieldbus adapters from the ABB list include BACnet/IP (FBIP-21, +K465), Modbus TCP (FMBT-21, +K491), PROFINET IO (FPNO-21, +K492) and EtherNet/IP (FEIP-21, +K490). Read the code as series ACH580, construction 31 (ultra-low harmonic, wall-mounted), size 046A and voltage code 4.

Documents and quotation

Figures come from ABB’s ACH580 HVAC catalogue (3AUA0000186691, revision F, dated 9.14.2019), linked on this page. Seven Star LLC supplies the ACH580-31-046A-4 on request from Muscat; please send the motor nameplate, supply voltage, enclosure class and the harmonic limits of your site, and the quotation will state availability and lead time.

Confirm before ordering: the exact type code and options, the harmonic requirement, the newest ABB hardware manual for the ULH series and the space available, since the R6 housing is much larger than a conventional 22 kW drive.