Siemens 3TS1722-0A 5-8K Series Operating Instructions

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Contactor for capacitor switching:
Type: 3TS1722-0A..5-8K
IEC 60947-4-1
3TS1722-0A..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 is 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
3TS1722-0A .. 5-8K
• Switching frequency in Make/Break operations:
100 operating cycles/hr.
50
Operating Instructions
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.
Commissioning and maintenance by
qualified personnel only. Follow the
operating instructions
Do not remove precharging resistors. If
contactor is switched on load without resistor,
it may cause damage to the contactor
• Maximum back-up fuse rating: For Type-1 Coordination
Type-3NA7 as per IEC 60269
operational class gG 125A
ii) Aux Circuit:
Inbuilt: Auxiliary Contacts
2NO+2NC
Aux Contact Rating:
3TY7
le AC-15 = 3.6 A at 415 V AC.
le DC-13 = 0.48 A at 220 V DC.
iii) Control circuit:
• Control voltage is marked on the coloured identification
tag on the coil.
Note:
• The voltage is to be maintained within 0.85 to 1.1 x rated
coil voltage.
• Operation in 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 3TS1722.. is shown in figure 1
Fig. 1
Warning: