Siemens 10

EARTHING TERMINALS :

All motors are provided with 4 earthing terminals, two in the terminal box and one on each foot.

CONVERTER OPERATION :

1LAO motors can be suitably designed for use with converters (variable voltage, variable frequency drives).

RE-RATING FACTORS :

The re-rating factors applicable under different conditions are as below :

• Altitude of Location

Altitude above Mean
Sea Level in Metres

1000

1500

2000

2500

3000

3500

4000

Permissible Output as
% of rated value

100

97

94

90

86

82

77

Variation in supply voltage & frequency

Voltage
Variarion

Frequency
Variation

Combined
Voltage &
Frequency
Variation%

Permissible
Output as% of
Rated Value

± 6

± 3

± 9

100

± 10

± 5

± 10

95

± 12.5

± 5

± 12.5

90

± 15

± 5

± 15

85

Ambient temperature / temperature rises

Maximum Ambient
Temperature C

Restriction on Temp.
Rise (Resistance
Method) C

Permissible Output
as % of
Rated Value

< 30

—

107

30-40

—

100

45

75

96

50

70

92

55

65

87

BEARING SYSTEM

Frames upto 225M have pre-lubricated bearings as a standard feature but regreasing facility can be providedon request. Frames 250 and above are equipped with regreasable bearings as a standard feature.

• Bearing Data

Frame
Size

Motor
Type
1LAO
Poles
Bearing Type

Horizontal
Construction

Vertical
Construction

Drive end

Non-drive
end

Drive end

Non-drive
end

160M,L

16

2...8

6209 C3

6209 C3

6209 C3

6209 C3

180M,L

18

2...8

6210 C3

6210 C3

6210 C3

6210 C3

200 L

20

2...8

6212 C3

6212 C3

6212 C3

6212 C3

225 S,M

22

2...8

6213 C3

6213 C3

6213 C3

6213 C3

250 M

25

2...8

6215 C3

6215 C3

6215 C3

6215 C3

315 S,M

28

2

6216 C3

6216 C3

6216 C3

6216 C3

4...8

6317 C3

6317 C3

6317 C3

6317 C3

315 L

310, 313

2

6217 C3

6217 C3

6217 C3

6217 C3

4...8

6319 C3

6319 C3

6319 C3

6319 C3

355 L

316, 317

2

6217 C3

6217 C3

6217 C3

7217 B

4...8

6319 C3

6319 C3

6319 C3

6319 C3

355L

35

2

NU 217

NU 217+
6217 C3

NU 217

7217 B

4...8

6322 C3

6322 C3

6322 C3

6322 C3

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