IEC applications
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3TM
The 3TM is a compact, maintenance‑free vacuum contactor for up to 15 kV, rated for one million operations. Flexibly mountable in any position, it supports 1‑ or 3‑pole configurations and DIP‑selectable control voltages.
Why 3TM4 vacuum contactor-fuse-combinations?
The 3TM4 Contactor‑Fuse‑Combination (CFC) pairs Siemens’ proven 3TM vacuum contactors with high-voltage HRC fuses to deliver a ready-to-install, withdrawable solution for reliable operational switching and short‑circuit protection. Available in compact and high‑current variants, the 3TM4 supports fuse currents up to 50 kA and is engineered for for up to one million operating cycles, ensuring long service life and exceptional availability.
- up to 12 kV
- up to 50 kA
- up to 1 Mio. operations
Keskeiset edut
Plug&Play
Pre-assembled withdrawable solution for time-saving integration.
Extreme durability
Vacuum contactor for up to one million cycles for exceptional availability.
Powerful protection
Integrated HV current‑limiting fuses provide reliable short‑circuit interruption up to 50 kA.
Plug. Protect. Perform.
Designed as a plug‑&‑play package, the 3TM4 comes complete on a withdrawable part with pre-assembled contacts, fuse holders and an integrated control transformer. Compact dimensions, multiple bushings and connection dimensions make retrofit and new-install integration straightforward.
