Selection Table 1: Direct-On-Line Starters
Motor
Output
at 415V,
3ph, 50Hz
I(fl)
4 Pole
motor
Size
DOL Starters
Contactor
Recommended Over-load
Relay 50°C
Recommended Fuse-
Switch
Recommended
Cu cable size
Type Reference
1)
Type Reference
1)
Type
Range
Type
Max. Backup
HRC Fuse
Rating
(kW/HP)
(A)
(A)
(A)
(mm
2
)
11/15
20.8
DOL-1
3TW7493-2A..
3TS3400-0A..
3US5200-2C8K
16-25
3KL815
50
6
15/20
28
DOL-2
3TW7494-2A..
3TS3522-0A..
3US5600-2D8K
20-32
3KL815
50
6
18.5/25
34
3TW7495-2A..
3TS3622-0A..
3US5600-2Q8K
25-36
3KL815
63
10
22/30
40
DOL-3
3TW7496-2A..
3TS4722-0A..
3US5800-2F8K
32-50
3KL821
80
16
30/40
53
3TW7497-2A..
3TS4822-0A..
3US5800-2T8K
40-57
3KL821
100
16
37/50
65
3TW7498-2A..
3TS4822-0A..
3US5800-2V8K
57-70
3KL822
125
25
45/60
78
DOL-6
3TW7499-2A..
3TS5122-0A..
3US5800-8Y8K
70-95
3KL822
125
35
55/75
96
3TW7590-2A..
3TS5122-0A..
3US5800-5C8K
85-105
3KL823
160
35
1)
10
th
and 11
th
place in the type reference is for coil voltage code, refer Table 3.
Selection Table 2: Automatic Star-Delta Starters
Motor
Output
at 415V,
3ph,
50Hz
I(fl)
4 Pole
motor
line
current
I(fl)
4 Pole
motor
phase
current
Size
ASD Starters
Contactor
Main
Contactor
Star
Contactor
Delta
Recommended
Over-load Relay 50°C
Recommended
Fuse-Switch
Recommended
Cu cable size
Type
Reference
1)
Type
Reference
1)
Type
Reference
1)
Type
Reference
1)
Type
Range
Type
Max.
Backup
HRC Fuse
Rating
Incoming
(from
supply)
Outgoing
(to
motor)
(kW/HP)
(A)
(A)
(A)
(mm
2
)
(mm
2
)
22/30
40
23.2
ASD-2
3TE7493-2A… 3TS3522-0A.. 3TS3511-0A.. 3TS3511-0A.. 3US56 00-2C8K 16-25 3KL815
50
16
10
30/40
53
30.6
3TE7494-2A… 3TS3522-0A.. 3TS3511-0A.. 3TS3511-0A.. 3US56 00-2D8K 20-32 3KL815
63
16
10
37/50
65
37.5
3TE7495-2A… 3TS3622-0A.. 3TS3511-0A.. 3TS3611-0A.. 3US56 00-2R8K 32-40 3KL821
80
16
10
45/60
78
45
ASD-3
3TE7496-2A… 3TS4722-0A.. 3TS3522-0A.. 3TS4722-0A.. 3US58 00-2F8K 32-50 3KL821
100
35
16
55/75
96
55.4
3TE7497-2A… 3TS4822-0A.. 3TS3522-0A.. 3TS4822-0A.. 3US58 00-2T8K 40-57 3KL821
100
35
25
1)
10
th
and 11
th
place in the type reference is for coil voltage code, refer Table 3.
4
Selection Table 3
Coil Voltage
10
th
- 11
th
digit in MLFB
24V
B0
110V
F0
230V
P0
240V
U0
415V
R0
All other voltages
Upon enquiry
Selection Table 4
Star-Delta Timer
Input Voltage
MLFB
24/100 - 127V
3RP1576-1NQ308K
200 - 240V
3RP1576-1NM208K
380 - 440V
3RP1576-1NM208K
Timer to be selected according to contactor coil voltage.
Spares List
Type of spares
MLFB
ON/OFF Actuator
3SX155-21YA
ON/OFF Contact (DOL 2 & ASD 2)
3SX155-11YA
Reset cord for ASD3
3UX1015
Accessory for 3US58 independent
mounting
3UX1421
Contact Block (1NO)
3SB5420-0B
Contact Block (1NC)
3SB5420-0C
Contactor Spare Contact Kit
Refer Siemens Price List
Electronic Star-Delta Timer
Refer Table 4
Relay
Refer Table 1 & 2
Contactor
Refer Table 1 & 2
Aux. contact block for 3TS34
3TX4010-2A
Tightening Torque
DOL
& ASD
Starter
Incoming
terminal
Tightening
Torque
Outgoing
Terminal
Tightening
Torque
DOL 1
M4
1.0-1.5Nm
M4
1.0-1.5 Nm
DOL 2
M4
1.0-1.5 Nm
M5
2.5-3.0 Nm
DOL 3
M6
3.0-4.0 Nm
M5
2.5-3.0 Nm
DOL 6
M6
3.0-4.0 Nm
M5
2.5-3.0 Nm
ASD 2
M4
1.0-1.5 Nm
M4
1.0-1.5 Nm
ASD 3
M6
3.0-4.0 Nm
M6
3.0-4.0 Nm
Cover fixing torque 1.5-2.1Nm.
40
