105
MECHANICAL INSTALLATION
Powerdrive MD Smart Integration Guide
5751 en - 2021.10 / e
MECHANICAL INST
ALLA
TION
3.6 - Variable speed drive losses
It is important to know the losses dissipated by all components in the enclosure in order to properly size the ventilation system. The
losses for each item are shown in the tables below.
Air inlet
Total losses
Air inlet
Losses
losses
Note
: in the case of the use of CL-version modules (without ventilation), 85% of the losses are discharged via the coolant. 15% of
the losses from thermal connection, electrolytic capacitors and electronic cards to be evacuated through additional air circulation in
the enclosure. These losses are referred to as electronic losses.
• Three-phase 400V -10% to 480V +10%
Passive rectifiers
Reference
AC
rated input
current
(A)
Total losses
(W)
Electronic
losses
(W)
MD3REC1x475N
250
630
94
294
788
118
393
1088
163
MD3REC1xx715N
479
1282
192
595
1699
255
MD3REC1xx865N
719
2006
300
MD3REC1xx1075N
833
2400
360
896
3136
470
Control module
Reference
Total losses
MD3CTLN
20
MD3PRLN
20
MD3PRG
12
Summary of Contents for Leroy-Somer Powerdrive MD Smart
Page 1: ...Powerdrive MD Smart MD3 IP00 Chassis serie Integration Guide Reference 5751 en 2021 10 e...
Page 162: ...162 APPENDICES Powerdrive MD Smart Integration Guide 5751 en 2021 10 e APPENDICES Size 31...
Page 164: ...164 APPENDICES Powerdrive MD Smart Integration Guide 5751 en 2021 10 e APPENDICES RFI filter...
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Page 173: ...173 APPENDICES Powerdrive MD Smart Integration Guide 5751 en 2021 10 e APPENDICES Capablock...
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