Delta MS300 Series User Manual page 27

Chapter 3 InstallationMS300
3-1 Mounting Clearance
 Prevent fiber particles, scraps of paper, shredded wood, sawdust, metal particles, etc. from
adhering to the heat sink.
 Install the AC motor drive in a metal cabinet. When installing one drive below another one, use a
metal separator between the AC motor drives to prevent mutual heating and to prevent the risk of
fire accident.
Install the AC motor drive in a Pollution Degree 2 environment with clean and circulating air. A clean

and circulating environment means air without polluting substances and dust.
 Mount the drive in an IP54 cabinet in order to maintain the Pollution Degree 2 or in a pollution-
controlled environment. When installing the AC motor drive in a Pollution Degree 2 (IEC/EN 60664-
1) environment, only nonconductive pollution occurs for the electrical equipment in the cabinet and
thermostatic chamber and temporary conductivity caused by condensation is expected.
The appearances shown in the following figures are for reference only. The actual motor drives may look
different.
Airflow direction:
Single drive installation
Figure 3-1
Minimum mounting clearance
Installation method
Single drive installation
Side-by-side horizontal installation
Zero stack installation
NOTE:
The minimum mounting clearances A–C stated in the table above apply to AC motor drives installation.
Failing to follow the minimum mounting clearances may cause the fan to malfunction and heat dissipation problems.
(Blue arrow) Inflow
( ) (
A mm B
50
50
50
(Red arrow) Outflow
Side-by-side horizontal installation /
Zero stack installation
) ( )
mm C mm
Max. (Without derating)
30 -
30 30
30 0
18
(Black) Distance
Figure 3-2
Ambient temperature (
Max. (derating)
50
50
40
o C)
60
60
50
Table 3-1