10
vacon • 160 Active front end (NXA)
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
10.5 Power ratings
*) C = power loss into coolant, A = power loss into air, T = total power loss.
The enclosure class for all VACON
®
NX Liquid-Cooled AC drives is IP00.
I
th
= Thermal maximum continuous RMS current. Dimensioning can be done according to this
current if the process does not require any overloadability or the process does not include any load
variation.
I
L
= Low overloadability current. Allows +10% load variation. 10% exceeding can be continuous.
I
H
= High overloadability current. Allows +50% load variation. 50% exceeding can be continuous.
All values with cosϕ = 0.99 and efficiency = 97.5%.
*) c = power loss into coolant; a = power loss into air; T = total power loss.
All power losses obtained using max. supply voltage, I
th
and switching frequency of 3.6 kHz. All
power losses are worst case losses.
Table 62. Power ratings of VACON
®
NX Liquid-Cooled AFE unit, supply voltage 400-500 VAC
VACON
®
NX Liquid-Cooled Front End; DC Bus voltage 465–800 VDC
Active
front-
end type
AC Current DC power
Power loss
c/a/T*)
[kW]
Chassis
Thermal
I
th
[A]
Rated
I
L
[A]
Rated
I
H
[A]
400 VAC
mains
I
th
[kW]
500 VAC
mains
I
th
[kW]
400 VAC
mains
I
L
[kW]
500 VAC
mains
I
L
[kW]
0168_5 168 153 112 113 142 103 129 2.5/0.3/2.8 CH5
0205_5 205 186 137 138 173 125 157 3.0/0.4/3.4 CH5
0261_5 261 237 174 176 220 160 200 4.0/0.4/4.4 CH5
0300_5 300 273 200 202 253 184 230 4.5/0.4/4.9 CH61
0385_5 385 350 257 259 324 236 295 5.5/0.5/6.0 CH61
0460_5 460 418 307 310 388 282 352 5.5/0.5/6.0 CH62
0520_5 520 473 347 350 438 319 398 6.5/0.5/7.0 CH62
0590_5 590 536 393 398 497 361 452 7.5/0.6/8.1 CH62
0650_5 650 591 433 438 548 398 498 8.5/0.6/9.1 CH62
0730_5 730 664 487 492 615 448 559 10.0/0.7/10.7 CH62
0820_5 820 745 547 553 691 502 628 10.0/0.7/10.7 CH63
0920_5 920 836 613 620 775 563 704 12.4/0.8/12.4 CH63
1030_5 1030 936 687 694 868 631 789 13.5/0.9/14.4 CH63
1150_5 1150 1045 767 775 969 704 880 16.0/1.0/17.0 CH63
1370_5 1370 1245 913 923 1154 839 1049 15.5/1.0/16.5 CH64
1640_5 1640 1491 1093 1105 1382 1005 1256 19.5/1.2/20.7 CH64
2060_5 2060 1873 1373 1388 1736 1262 1578 26.5/1.5/28.0 CH64
2300_5 2300 2091 1533 1550 1938 1409 1762 29.6/1.7/31.3 CH64