Technical data   115
1) Available if ambient temperature is less than 30 °C (86 °F). 
If ambient temperature is 40 °C (104 °F), 
I
2N
 is 286 A.
2) Special 4-pole high-efficiency NEMA motor.
3) 50% overload is allowed for one minute every five minutes if ambient temperature is less than 30 °C 
(86  °F). 40% overload is allowed if ambient temperature is 40 °C (104 °F).
4) Available if ambient temperature is less than 30 °C (86  °F). If ambient temperature is 40 °C (104 °F), 
I
2N
 is 704 A.
5) These values are not calculated according to the ecodesign standard IEC 61800-9-2.
*) Higher value available if output frequency is above 41 Hz.
**) ACS800-U4 types only.
 Symbols
Note: The ratings apply at ambient temperature of 40 °C (104 °F). At lower temperatures the ratings are 
higher. 
 Sizing 
See page 102.
 Derating
See page 102.
-0320-7 433 290 300 216 200 R8 718 21050
-0400-7 548 344 350 274 250 R8 718 22750
-0440-7 656 387 400 328
350 
2)
R8 718 25300
-0490-7 775 426 450 387 400 R8 718 28900
-0550-7 853 482 500 426 450 R8 718 28350
-0610-7 964 537 500 482 500 R8 718 33300
PDM code: 00096931-G
I
max
Maximum output current. Available for 10 s at start, otherwise as long as allowed by drive 
temperature.
Normal use (10% overload capability)
I
2N
Continuous rms current. 10% overload is typically allowed for one minute every 5 minutes.
P
N
Typical motor power. The power ratings apply to most 4-pole NEMA rated motors (230 V, 
460 V or 575 V). 
Heavy-duty use (50% overload capability)
I
2hd
Continuous rms current. 50% overload is typically allowed for one minute every 5 
minutes.
P
hd
Typical motor power. The power ratings apply to most 4-pole NEMA rated motors (230 V, 
460 V or 575 V). 
ACS800-U4 size
ACS800-04 size
I
max
Normal use  Heavy-duty use  Frame 
size
Air flow Heat 
dissipation
A
I
2N
A
P
N
 hp
I
2hd
A
P
hd
hp
ft
3
/min
BTU/Hr