The Siemens 3TM vacuum contactor is a compact, high‑performance medium‑voltage switching solution engineered to keep critical systems running. Designed for up to 15 kV networks, the 3TM delivers up to one million electrical and mechanical switching cycles without maintenance, making it ideal for conveying and elevator systems, pump stations, HVAC, data centers, reactive power compensation, wind and photovoltaic farms, mining, rail and marine applications.
Go maintenance‑free up to one million switching cycles.
Modular pole design and mountable in any position.
Low coil power consumption cuts energy and operating costs.
The 3TM tolerates vibration and shock, operates up to 5000 m altitude, and switches operating and overload currents reliably across AC‑1 to AC‑4 categories — even during voltage dips.
Individually adjustable switching times and the ability to mount the contactor in practically any position deliver optimal integration into constrained layouts and varied panel orientations.
Its modular architecture supports 1‑ or 3‑pole configurations and DIP‑selectable control voltages, enabling fast retrofits and straightforward component upgrades.
