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3TF6944-0CM7

The 3TF6944-0CM7 is a three-pole AC contactor from Siemens’ SIRIUS 3TF series, designed for motor control and power switching in industrial applications. It features a compact design, high switching capacity, and reliable operation in demanding environments.

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TEL：400-887-3214
Mail：jilineasyyi@outlook.com
Q Q：615739355
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Key Features
✔ Three-pole design – For switching three-phase AC loads
✔ High switching capacity – Up to 690V AC
✔ Compact and modular – Space-saving DIN rail mounting
✔ Long electrical life – Up to 1 million operations
✔ LED status indicator – Visual operation feedback

3. Technical Specifications
3.1 Electrical Ratings
Parameter Specification
Rated Voltage (Ue) 690V AC (50/60 Hz)
Rated Current (Ie) 32A (AC-3, 400V)
Control Voltage 24V DC / 230V AC (depending on coil variant)
Switching Capacity 15 kW (AC-3, 400V)
3.2 Mechanical & Environmental
Parameter Specification
Mounting DIN rail (35mm) or panel mounting
Dimensions (W×H×D) 55 × 98 × 85 mm
Weight 0.5 kg
Protection Class IP20 (requires enclosure)
Operating Temp. -25°C to +60°C
3.3 Contact & Coil Data
✔ Auxiliary Contacts – Optional (1NO + 1NC)
✔ Coil Options – 24V DC, 110V AC, 230V AC
✔ Mechanical Life – 10 million operations

4. Typical Applications
✔ Motor Starters – Switching and reversing control
✔ HVAC Systems – Compressor and fan control
✔ Industrial Machinery – Conveyors, pumps, and compressors
✔ Power Distribution – Switching AC loads