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. 10% load variation. 10% exceeding can be continuous.
I
H
= High overloadability current. 50% load variation. 50% exceeding can be continuous.
All values with cos
ϕ
= 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
Содержание NX
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