Vacuum Contactors 3TL7

The Powerful


3TL7 vacuum contactors are 3-pole contactors with electromagnetic operating mechanism for medium-voltage switchgear. The high rated voltage of 24 kV opens a possibility for special applications in high voltage areas with a high number of switching cycles.

3TL7 vacuum contactors

■ 24 kV rated voltage
■ 800 A rated normal current
■ 1Mio mechanical operating cycles
Please find detailed information in our catalogue.

Technical Data



Rated voltage

24 kV

Rated frequency

50/60 Hz

Rated normal current

800 A

Rated making current*

4500 A

Rated breaking current*

3600 A

Mechanical service life
of the contractor*

1 million
operating cycles

Electrical service life
of the vacuum unterrupter
(rated current)*

0.5 million
operating cycles

* Switching capacity according to utilization category AC-4