Accelnet & Stepnet Plus Panels User Guide
16-01339 Rev 07
* The fan shown is a 70 mm (2.76 in) square fan that supplies forced air at a minimum rate of 300 linear feet
per minute.
BEL,
BPL,
BML
M
ODELS
P
OWER
D
ISSIPATION VS
.
O
UTPUT
C
URRENT
Beginning with the continuous current rating of the drive, use the curve for the +HV voltage to find the power
dissipation. The vertical dashed lines show the continuous current ratings of the three BEL/BPL models.
Example: A BEL-090-30 is operating at 65 Vdc. Power dissipation is ~13.4 W.
M
AXIMUM
O
PERATING
T
EMPERATURE VS
.
P
OWER
D
ISSIPATION
Using the power dissipation from the chart above, draw a vertical line from that number on the X-axis upwards
in the chart below. The intersection of this line and the curves now shows the maximum ambient temperature
that is allowed for the four mounting/cooling options.
Example: at 13.4W the maximum ambient temperature with a Heatsink and No Fan (HSNF) is 43C.
W
2W
4W
6W
8W
10W
12W
14W
16W
disabled
0.0A
2.5A
5.0A
7.5A
10.0A
12.5A
15.0A
80 V
65 V
50 V
35 V
20 V
BEL-090-06
BEL-090-14
BEL-090-30
