SIRIUS 3RT12 and 3TF6 vacuum contactors
Siemens catalog image for this reference; may represent the product family.
VACUUM CONTACTOR
3TF6944-0CM7 — Vacuum contactor
SKU 3TF6944-0CM7vacuum contactor AC-3e 630 A, 335 kW / 400 V, AC-3 820 A, 450 kW / 400 V, Ue 690 V, 3-pole, Uc: 200-240 V AC(50/60 Hz) drive: conventional auxiliary contacts 4 NO + 4 NC main circuit: busbar control and auxiliary circuit: screw terminal
Active Product
820 ARated operational current (AC-3/AC-3e)
335 kW / 400 VMotor power / voltage
3Poles
PRODUCT DATA
Technical specifications
Source: Siemens product catalog.
Verified September 21, 2026.
| Product reference | 3TF6944-0CM7 |
|---|---|
| Manufacturer description | vacuum contactor AC-3e 630 A, 335 kW / 400 V, AC-3 820 A, 450 kW / 400 V, Ue 690 V, 3-pole, Uc: 200-240 V AC(50/60 Hz) drive: conventional auxiliary contacts 4 NO + 4 NC main circuit: busbar control and auxiliary circuit: screw terminal |
| Product Family | SIRIUS 3RT12 and 3TF6 vacuum contactors |
| Net weight | 22,202 Kg |
| Packaging dimensions (L x W x H) | 404,00 x 374,00 x 378,00 mm |
| Country of origin | Turkiye |
| EAN | 4011209044517 |
| UPC | 754554628776 |
| Rated operational current (AC-3/AC-3e) | 820 A |
| Motor power / voltage | 335 kW / 400 V |
| Poles | 3 |
| Auxiliary contacts | 4 NO + 4 NC |
For complete electrical ratings, applicable standards, connection requirements and installation instructions, consult the official Siemens reference ↗.