Enclosure
Door fan/Top fan
airflow
Airflow over heat-
sink
IP 21 / NEMA 1 &
IP 54 / NEMA 12
D1 and D2
6,003 ft
3
/h [170 m
3
/h]
(100 cfm)
27,015 ft
3
/h [765 m
3
/
h] (450 cfm)
E1
12,006 ft
3
/h [340 m
3
/
h] (200 cfm)
50994 ft
3
/h [1444 m
3
/
h] (850 cfm)
IP 00 / Chassis
D3 and D4
9,005 ft
3
/h [255 m
3
/h]
(150 cfm)
27,015 ft
3
/h [765 m
3
/
h] (450 cfm)
E2
9,005 ft
3
/h [255 m
3
/h]
(150 cfm)
50994 ft
3
/h [1444 m
3
/
h] (850 cfm)
3.2: Heatsink Air Flow
3. How to Install
VLT
®
HVAC DRIVE High Power
Instruction Manual
30
MG.11.F1.22 - VLT
®
is a registered Danfoss trademark.
3
