Electrical installation 3, Danger – Lenze MDxMA Three-phase AC motors ATEX 3D category User Manual
Page 9
Electrical installation
3
9
BA 12.0031 EN 2.1
Protection against impermissible high temperatures
Under normal operating conditions, the motors ensure safe operation within the
explosion protection specification listed on the nameplate. To protect the motor against
impermissible high temperatures in case of an overload, the thermal contact embedded
in the motor winding must be analysed by a device that is suitable for this purpose. If the
thermal contact is tripped, all phases of the motor must be disconnected from mains.
Danger!
Before commissioning, the effectiveness of the protective device must be
checked.
Frequency inverter operation
Motors of category 3D in the combination listed below can be operated with the Lenze
frequency inverter.
Motor frame size
P
N
f
N
Frequency inverter
[kW]
[Hz]
q
y
063 - 12
0.12
---
063 - 32
0.18
---
063 - 42
0.25
E82EV251
071 - 32
0.37
E82EV371
071 - 42
0.55
E82EV551
080 - 32
0.75
E82EV751
080 - 42
1.1
50
E82EV152
090 - 32
1.5
50
E82EV152
100 - 12
2.2
E82EV222
100 - 32
3.0
E82EV302
112 - 22
4.0
E82EV402
112 - 32
5.5
E82EV552
132 - 22
7.5
E82EV752
132 - 32
9.2
E82EV113
Tab. 1
Motor - frequency inverter assignment 50 Hz
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