Siemens 3TS11 Series Operating Instructions

s
Contactor for capacitor switching:
Type: 3TS11 .. to 3TS15..
IS/IEC:60947
3TS11..-0A..5-8K
A. Technical Data
i) Main circuit:
The capacitors are precharged during pick-up via early-make
contacts and integrated pre-charge resistors before the main
contacts close.
This combination may be used for switching of Individual
capacitor for power factor correction of single loads or for
switching capacitor banks in parallel in centralized group
power factor correction system.
• Insulation Voltage Ui = 690 V AC,
Temperature: Storage -25 to +55ºC
Service (without derating) -25 to +40ºC
Use the devices with the declared capacitor bank ratings only.
Load of contactor when switching
Contactor Type
3ph-AC capacitor kVAr at 415/440V, 50Hz
3TS11 .. -0A .. 5-8K
3TS1200-0A .. 5-8K
3TS1300-0A .. 5-8K
3TS1400-0A .. 5-8K
3TS1500-0A .. 5-8K
• Switching frequency in Make/Break operations:
180 Operating cycles/ hour for all ratings
• Maximum back-up fuse rating: For Type-1 Coordination
Type-3NA7 as per IEC 60269
: 1.6...1.8Ie
ii) Aux Circuit:
Inbuilt: Auxiliary Contacts
1NO in case of 3TS11...
No built-in auxiliary contacts for 3TS12.. To 3TS15..
Additional Aux:
Facility to add-on 1NO or 1NC auxiliary contact block type
3TX40.. is available from 3TS11.. To 3TS15..
3TS13..-0A .. 5-8K
7
12.5
16
20
25
Operating Instructions
3TX 40.. Block fitment
Aux Contact Rating:
3TX40
Ie AC-15 = 3.6A at 415V
Ie DC-13 = 0.48A at 220V
Note: Do not remove precharging resistors. If contactor is
switched on load without resistor, it may cause damage to
the contactor.
iii) Control circuit:
• Control voltage is marked on the coloured identification
tag on the coil.
Note:
• The voltage is to be maintained within allowable limits.
• Operation on under voltage conditions to the coil may
cause damage to the coil/contactor.
• Maximum back-up fuse rating for control circuit = 16A
= 6A if relay contact is in the control circuit.
iv) Internal connection diagram
Connection Details for 3TS11... to 3TS15.. is shown in figure 1
Fig. 1
Warning:
!
Hazardous Voltage can cause
Electric Shock and burns.
Disconnect Power before proceeding with
any work on this equipment
Avoid operation during under voltage
conditions. Switch only onto discharged
capacitors. Manual operation not
permitted for function testing
 In built NO incase of 7kVAr only.