Catalog

IEC Squirrel-Cage Motors
Introduction
1
General technical data
Voltages, currents and frequencies
Standard voltages
EN 60034-1 differentiates between Category A (combination of
voltage deviation –5% and frequency deviation –2%) and Category
B (combination of voltage deviation –10% and frequency
deviation +3/–5%) for voltage and frequency fluctuations. The
motors can supply their rated torque in both Category A and
Category B. In Category A, the temperature rise is approx. 10 K
higher than during normal operation.
According to the standard, longer operation is not recommended
for Category B. See Page 1/30 for details of the rating
plate inscriptions and examples. The selection and ordering
data state the rated current at 400 V and where applicable
690 V. The DIN IEC 60038 standard specifies a tolerance of
–10% for line voltages of 230 V, 400 V and 690 V. The rating
plates of motors with voltage code 0, 1 or 6 also include a rated
voltage range in addition to the rated voltage (see table).
The rated currents at 420 V and for 1LA8/1PQ8/1LL8 motors
660 V or 725 V are listed in the table on Pages 1/25, 1/26 and on
the rating plate.
The tolerance laid down by DIN EN 60034-1 applies to all converter-fed
1LA8 motors as well as to 1LA5, 1LA7, 1LG6, 1PQ8
and 1LL8 motors with special 690 V insulation, i.e. no rated voltage
range is specified on the rating plate.
For 1LA and 1LG motors, type of protection “n” (Zone 2), a rated
voltage range is not specified.
Line voltages Rated voltage range Voltage code
1LA, 1LG, 1MJ, 1PQ8 and 1LL8 motors
230 VD/400 VY, 50 Hz 220 ... 240 VD/380 ... 420 VY 1 1)
50 Hz
400 VD/690 VY, 50 Hz 380 ... 420 VD/660 ... 725 VY, 6
50 Hz
500 VY, 50 Hz – 3
500 VD, 50Hz – 5
1LA and 1LG motors
Second rating plate with 50 and 60 Hz data,
frame sizes 56 to 315 M
for 1LA9 and 1LG6
with output at 60 Hz additionally in HP
460 V, 60 Hz 440 ... 480V, 60 Hz 1, 6
1MA motors
230 VD/400 VY, 50 Hz 218 ... 242 VD/380 ... 420 VY, 1
50 Hz
400 VD/690 VY, 50 Hz 380 ... 420 VD/655 ... 725 VY,
50 Hz
6
Non-standard voltages and/or frequencies
The tolerance laid down by DIN EN 60034-1 applies to all nonstandard
voltages.
Order codes have been allocated for a number of non-standard
voltages at 50 or 60 Hz. They are ordered by specifying the code
digit 9 for voltage in the 11th position of the Order No. and the
appropriate order code.
L8Y Standard winding
Winding in accordance with voltage codes 0, 1, 3, 5, 6, 7 or 8;
rating plate is stamped with order details.
The rated voltage is permitted to deviate up to ±5% from the medium
voltage of the defined voltage codes (0, 1, 3, 5, 6, 7 or 8).
Order code L8Y does not apply to explosion-proof motors, converter-fed
motors, smoke extraction motors and motors for the
North American market (in connection with order codes D30,
D31 or D40).
L1Y Non-standard winding for voltages between 200 V (380 V
for 1LA8, 1PQ8 and 1LL8 motor series) and 690 V and rated
output up to the maximum rated output of the basic version.
For voltages and rated outputs outside the range, please enquire.
Motor series Frame size Rated voltages for L1Y
that can be supplied
Lowest / highest voltage
in V for
Delta Star
1LA7, 1LA9, 1LP7, 1MA7, 56 . . . 90 200 / 500 2) 250 / 690 3)
1MJ6, 1PP7
1LA6, 1LA7, 1LA9, 1LP7, 100 . . . 160 200 / 690 250 / 690
1MA6, 1MA7, 1MJ6, 1PP6,
1PP7
1LA5, 1LA9, 1LP5, 1MA6, 180 . . . 200 200 / 690 250 / 690
1MJ6, 1PP5, 1PP6
1LA5, 1LP5, 1PP5 225 200 / 690 250 / 690
L3Y Non-standard winding Y/D staring at low speed (only possible
for 1LA7 and 1LA5 pole-changing motors).
When ordering, state in plain text:
Voltage, frequency, connection and required rated output in kW.
Order codes for other rated voltages in the relevant sections of
the catalogue
For converter-fed motors and smoke extraction motors, only order
code L1Y is possible. For non-standard motors, order code
L8Y is also possible for converter-fed operation.
The order codes listed below are possible for other motors; see
the relevant sections of the catalogue.
1MA motors:
For non-standard frequencies, the t E times and, where applicable,
the rated output, may differ from those specified in the
selection tables; in this case, a new or supplementary certificate
is needed. For D connection, overload protection with phasefailure
protection must be provided.
1)
2)
3)
Only applicable to non-standard motors.
Highest voltage in delta circuit for 1MA7 060-2 and 1MA7 063-4 290 V as
well as for 1MA7 060-4 230 V.
Highest voltage in star circuit for 1MA7 060-2 and 1MA7 063-4 500 V as
well as for 1MA7 060-4 400 V.
Siemens D 81.1 · 2006
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