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Iec squirrel-cage motors – Siemens IEC Squirrel-Cage Motor 1LA7 User Manual

Page 4

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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

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