ABB ACS550-01-125A-4 — Variable Frequency Drive (VFD)

Part number	ACS550-01-125A-4
Brand	ABB
Category	AC Drive
Description	Variable Frequency Drive (VFD)
Manufacturer	ABB
Product Type	Variable Frequency Drive (VFD)
Product Line	ACS Series
Part Number	ACS550-01-125A-4
Weight	99.00 lbs (44.91 kg)
Voltage Rating	3-phase, 380-480V (+10%/-15%)
Power Rating (Normal Duty)	100 HP (124 A)
Power Rating (Heavy Duty)	75 HP (96 A)
Frame Size	R5
Output Frequency Range	0 - 500 Hz
Power Factor	0.98
Overload Capacity (Normal Duty)	110% of rated current for 1 min every 10 min
Overload Capacity (Heavy Duty)	150% of rated current for 1 min every 10 min
Built-in EMC Filter	Category C2 (1st environment)
Switching Frequency Options	1 kHz, 4 kHz, 8 kHz, 12 kHz
Ambient Temperature Range	-15°C to 40°C (up to 50°C with derating)
Protection Class	UL Type 1 or Type 12 (NEMA 1 or NEMA 12)
Communication Interface	RS-485 (Modbus RTU)
Digital and Analog I/O	6 digital inputs, 2 analog inputs, 2 analog outputs, 3 relay outputs

The ACS550-01-125A-4 from ABB is a variable frequency drive designed for versatile applications. It offers a voltage rating suitable for 3-phase systems, specifically operating within the range of 380 to 480 volts (with tolerances of +10% and -15%). Its power ratings allow for both normal and heavy-duty installations, capable of handling 100 HP (124 A) in standard conditions and 75 HP (96 A)...

Compatibility data for this part number is being verified. Send an RFQ with your equipment model and serial — our suppliers confirm fitment before quoting.

Data compiled from 1 verified source. Last reviewed 2026-08-16.