Siemens 3TW7291-1A, Installation, Operation & Maintenance Instructions

Page: 3 / 4

3
Replacement of coil Fig. 3: Contactor – Relay Connection
Table A:
Motor
Rating
At 415V
3ph 50Hz
Starter Type Contactor
Relay 3UW51
Back-up Fuse
Rating
Cu
Cable
(mm 2 )
size
Max. Full Load Current (Amp)
HP kW Range
Code
##
HRC
type
3NA
7
Rewirable
3Ph, 415V,
4P
Squirrel
Cage IS
8789:1996
Table 4
3Ph, 415V,
2P Sub-
mersible
motor IS
9283:1995
Table 2
1Ph, 240V,
CSIR or
Split-
Phase IS
996-1979
Table 9
0.33 0.25 3TW72 91-1A* 64 3TS3010-0A##08KA0 0.63-1 0J 2A 36 SWG 1 - - 3.8
0.75 0.55 3TW72 91-1A* 66 3TS3010-0A##08KA0 1-1.6 1A 6A 34 SWG 1 1.7 - 7
1 0.75 3TW72 91-1A* 68 3TS3010-0A##08KA0 1.6-2.5 1C 6A 27 SWG 1 2.2 - 7
1.5 1.1 3TW72 91-1A* 69 3TS3010-0A##08KA0 2-3.2 1D 10A 26 SWG 1 2.9 3.25 13
2 1.5 3TW72 91-1A* 71 3TS3010-0A##08KA0 3.2-5 1F 16A 25 SWG 1 3.8 4.5 18
3 2.2 3TW72 91-1A* 72 3TS3010-0A##08KA0 4-6.3 1G 16A 24 SWG 1.5 5.1 6.5 -
5 3.7 3TW72 91-1A* 74 3TS3010-0A##08KA0 6.3-10 1J 16A 21 SWG 1.5 8.1 10 -
7.5 5.5 3TW72 91-1A* 75 3TS3210-0A##08KA0 8-12.5 1K 25A 19 SWG 1.5 11.4 14.5 -
7.5 5.5 3TW72 91-1A* 77 3TS3210-0A##08KA0 10-16 2A 25A 18 SWG 2.5 - - -
10 7.5 3TW72 91-1A* 78 3TS3210-0A##08KA0 12.5-20 2B 32A 18 SWG 4 15.4 19.5 -
* Code for operating coil voltage, 50 Hz (B for 200-400V, W for 415V)
## Code for operating coil voltage, 50 Hz (Z6 for 200-400V, R0 for 415V)
Raja
+
Direct-on-line Starter
(For Single Phase connection)
Wiring Diagram for Single-Phase Motors
Note: Connect 3/L2 to 2/T1 by cable of suitable size. (Max. 4mm
2
)
S0 - OFF "O" (red) Button
S1 - ON "I" (green) Button
Q1 - Contactor
K1 - Bimetal Relay with
SPP feature
Hook on relay for
engagement
Contactor
outgoing terminals
Spare list
Sr.
No.
Description Order No.
1 Contactor for 200-400V 3TS30-10-0AZ608K-A0
2 Contactor for 200-400V 3TS32-10-0AZ608K-A0
3 Contactor for 415V 3TS30-10-0AR008K-A0
4 Contactor for 415V 3TS32-10-0AR008K-A0
5 Relay 3UW51 02-##
6 Coil for 200-400V 3TY7 403-0AZ6
7 Coil for 415V 3TY7 403-0AR0
8 ‘ON’ &’OFF’ Push Button #
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