Baumuller b maxx BM4400, Instruction Handbook Manual

Page: 61 / 360

Technical Data
Instruction handbook b maXX BM4400, BM4600, BM4700
Document No.: 5.12008.07
61
of 358
3
3.3.7 Cooling
Cooling air temperature
1)
min. 0 °C to max. 55 °C
(rated temperature: 40 °C)
Cooling air requirement
2)
See Z Electrical data basic units – from page 63
Cooling water temperature
5)
min. „Cooling air temperature“
1)
to max. 40 °C at Cold Plate devices BM5XXX-CXXX)
Cooling water flow rate
3) 5) 7)
BM443X, BM444X, BM445X, BM446X min. 4 l/min. bis max. 15 l/min.
BM463X, BM464X, BM465X, BM466X min. 4 l/min. bis max. 15 l/min.
BM465X-FXX9, BM466X-FXX9,

BM4755, BM4766
min. 10 l/min. bis max. 15 l/min
BM457X, BM477X min. 15 l/min. bis max. 25 l/min.
Cooling water pressure
3)
max. 6 bar
5)
Cooling water hysteresis max. 5 K in the static and the dynamic operation
Hot water heating

(cooling water inlet to cooling water outlet)
3)
[K] 14

35
l/min
kW
------------
K

powerloss kW
 
cooling water flow [l/min]
-----------------------------------------------------------------------  
Pressure loss at the water cooler
3)
0.5 bar at 10 l/min
Mounting board temperature with cold plate
6)
min. „Cooling air temperature“
1)
to max. 55 °C
(rated temperature: 40 °C)
at water cooling
5)
: water outlet temperature 40 °C

surface temperature 42 °C
1)
Air temperature in the entire suction area of the device.
2)
The cooling air requirement corresponds at least to that of a free-blowing device. Free-blowing means, that the air inlet and the air outlet
operates unrestricted. With the mounting of the device into a control cabinet it therefore can be necessary to use additional fans, so that
the necessary cooling air requirement is covered. If the necessary cooling air requirement of the power heat sink is not provided, then
the output power of the device has to be reduced.
Figure 30: Cooling air requirement