Siemens 3TM vacuum contactors are compact, flexible and reliable contactors that safely switch operating currents in medium-voltage power distribution systems.
3TM vacuum contactors are suitable for rated voltages of 7.2 to 15 kV and rated operational currents up to 450 A, ensuring end-to-end protection for many system operations, including:
- Conveyor systems and elevators
- Pumping stations
- Transformer and transfer stations
- Electric furnaces
- Data centers
- Wind power plants
- Photovoltaic panels
Siemens 3TM vacuum contactors are available in several versions, including:
- Contactor 3TM1: A single-pole contactor for special applications
- Contactor 3TM3: For high-frequency switching
- Contactor 3TM4: Combines frequent load switching with short-circuit protection
- Contactor 3TM4-HC: A contactor-fuse combination available in compact and high-current versions
