Siemens Vacuum Contactors 3TL6

Application 3TL vacuum contactors are 3-pole contactors with electromagnetically-operated mechanism for medium-voltage switchgear. They are load-break switchgear with a limited short-circuit making and short-circuit breaking capacity and are used for high switching frequencies ( > 10, 000 operating cycles) . The vacuum contactors are suitable for operational switching of AC loads in indoor and can perform, for example, the following switching duties:
Switching of three-phase motors in AC-3 and AC-4 operation
Switching of transformers
Switching of reactors
Switching of ohmic loads ( e.g. arc furnaces)
Switching of capacitors With reversing contactor combinations, only one contactor is required for each direction of rotation, if HV HRC fuses are used for short-circuit protection. Application examples
Conveyor and lift systems
Pump stations
Ventilation and heating
Systems for reactive-power compensation for the following branches of industry:
Mining
Steel
Gas and petrochemicals
Paper
Cement