Nd Rating Table - Toshiba TOSVERT VF-AS3 Instruction Manual

The amount of forcible air-cooling ventilation required and the necessary heat discharge surface
quantity when operating in a sealed cabinet depending on motor capacity are as follows.
<ND rating>
Applicable
Input
motor
voltage Inverter type-form
capacity
Class
(kW)
0.75
1.5
2.2
4.0
5.5
7.5
11
3-phase
15 VFAS3-
240 V
18.5
22
30
37
45
55
75
*1 Case of 100% load ND continuous operation. The heat loss for the optional external devices (input reactor, radio noise reduction filters, etc.) is not
included in the calorific values in the table.
Inverter
Frame
calorific value
size
(W) *1
2004P 65
2007P 92
A1
2015P 115
2022P 189
2037P A2 243
2055P 392
A3
2075P 544
2110P 625
2150P A4 750
2185P 874
2220P 1084
2300P A5 1384
2370P 1631
2450P 2466
A6
2550P 3432
2-7
Forced
air-cooled
Inner side
Required
calorific value
ventilation
(W) *1
amount
3
(m /min)
27 0.37
29 0.52
32 0.65
38 1.07
47 1.38
53 2.22
62 3.09
90 3.55
101 4.26
112 4.96
136 6.15
163 7.86
184 9.26
278 14.00
359 19.48
2. Installation and wiring
E6582062
Sealeded
cabinet
Necessary
heat discharge
surface
2
quantity (m )
1.30
2
1.83
2.31
3
3.79
4.85
7.84
10.87
12.51
15.01
17.49
21.68
27.68
32.63
49.33
68.64
9
10