Siemens IEC Squirrel-Cage Motor 1LA7 - Manual (Page 4)

IEC Squirrel-Cage Motors
Recoding overview of Order No. from motor series 1LA7/1LA9 to 1LE1
Guide to selecting and ordering the motors
1LA7/1LA9 and 1LE1
4 Siemens Supplement to Catalog D 81.1 · 2008
■
Overview
Determining the motor type according to cooling method, degree of protection and frame design
Applications for
surface-cooled motor types Cooling
method Standard
designa-
tion for
degree
of protec-
tion to
DIN EN
60034
Part 5 Frame
design Motor type (Positions 1 to 3 of the Order No.) +
type series (Position 4 of the Order No.)
Rated output at 50 Hz
Motor frame sizes (shaft heights)
56 63 71 80 90 100 112 132 160 180 200 225 250 280 315 355 400 450
New generation motors 1LE1
Extract from
catalog part 1
General Line motors with
shorter delivery time Self-
ventilated IP55 Aluminum 1LE1
1.5 ... 18.5 kW
Energy-saving motors with
improved efficiency
(Improved Efficiency EFF2) Self-
ventilated IP55 Aluminum 1LE1
0.75 ... 18.5 kW
Energy-saving motors with
high efficiency
(High Efficiency EFF1) Self-
ventilated IP55 Aluminum 1LE1
0.75 ... 18.5 kW
Motors with increased output and
improved efficiency Self-
ventilated IP55 Aluminum 1LE1
2.2 ... 22 kW
Motors with increased output and
high efficiency Self-
ventilated IP55 Aluminum 1LE1
2.2 ... 22 kW
Motors without external fan and
fan cover with improved efficiency Forced-
air-cooled IP55 Aluminum 1LE1
0.75 ... 18.5 kW
Motors without external fan and
fan cover with high efficiency Forced-
air-cooled IP55 Aluminum 1LE1
0.75 ... 18.5 kW
Standard motors (up to frame size 315 L)
Extract from
catalog part 2
Energy-saving motors with
improved efficiency
(Improved Efficiency EFF 2) Self-
ventilated IP55 Aluminum 1LA7
0.06 … 18.5 kW 1LE1 1LA5
11 … 45 kW
IP55 Cast-iron 1LA6
0.75 … 18.5 kW 1LG4
11 … 200 kW
Pole-changing motors with
improved efficiency Self-
ventilated IP55 Aluminum 1LA7
0.15 … 17 kW 1LA5
18 …
31 kW
Energy-saving motors with high
efficiency
(High Efficiency EFF1)
Self-
ventilated IP55 Aluminum 1LA9
0.06 … 37 kW
IP55 Cast-iron 1LG6
11 … 200 kW
Motors with increased output Self-
ventilated IP55 Aluminum 1LA9
0.14 … 53 kW
IP55 Cast-iron 1LG4
15 … 110 kW
© Siemens AG 2008