Vacon NXA series User Manual

Installation vacon • 59
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5
5.2 Cooling
5.2.1 Active Front End unit
Enough free space must be left around the Active Front End unit to ensure sufficient air circulation
and cooling. You will find the required dimensions for free space in the Table 27. You will find the
required cooling air, minimum air holes and heat dissipation in the Table 28.
When planning the cooling for the space, take into consideration that the Active Front End unit heat
loss is approx. 2% of the nominal capacity. Air flow, see Figure 31 and Figure 32.
Table 27. Mounting space dimensions
Type
Dimensions [mm]
A B B
2
C
NXA_0168 - 0261 5
NXA_0125 - 0170 6
200 0 0 100
NXA_0385 - 0460 5
NXA_0261 - 0325 6
200 00100
NXA_1150 - 1300 5
NXA_0920 - 1030 6
200 00100
A = free space above the unit
B = distance between inverter and cabinet wall
B2 = distance between two units
C = free space underneath of the units

Vacon NXA series Specifications

General

Brand	Vacon
Model	NXA series
Category	Controller
Language	English