DESCRIPCIÓN DEL PRODUCTO
SIEMENS 3TF6944-0CM7 - Power Contactor
This device is a SIEMENS 3TF series power contactor, engineered for switching high-power inductive and resistive loads in industrial environments. It integrates a robust 3-pole main contact system with a 400VAC control coil, providing reliable motor control and load isolation for applications such as heavy machinery, large pump systems, and industrial heating circuits. Its design prioritizes operational stability and longevity under demanding conditions.
Technical Specifications:
- SERIES/FAMILY: 3TF Power Contactor
- COMPONENT TYPE: 3-Pole Power Contactor with Auxiliary Contacts
- ELECTRICAL SPECS:
- RATED OPERATIONAL CURRENT (AC-3, 400V): 820A
- RATED OPERATIONAL POWER (AC-3, 400V): 450 kW
- RATED OPERATIONAL VOLTAGE: Up to 1000V AC
- RATED INSULATION VOLTAGE: 1000V
- RATED IMPULSE WITHSTAND VOLTAGE: 8 kV
- CONTROL COIL VOLTAGE: 400VAC, 50/60Hz
- NUMBER OF MAIN POLES: 3
- MECHANICAL/PHYSICAL:
- AUXILIARY CONTACTS: 4 Normally Open (NO) + 4 Normally Closed (NC)
- TERMINAL TYPE: Screw terminals for main and auxiliary circuits
- FORM FACTOR: Open-type industrial contactor, large frame
- INTERFACE/CONTROL:
- CONTROL TYPE: Electromechanical, AC coil actuated
- FEEDBACK: Integrated auxiliary contacts for status indication and interlocking
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP00 (terminals), IP20 (front with cover)
- COOLING METHOD: Natural air cooling
- MOUNTING STYLE: Screw mounting
- COMPATIBILITY/APPLICATION:
- TARGET SYSTEMS: Industrial motor control centers, heavy-duty machinery, large HVAC systems, power distribution panels, resistive heating applications.
- LOAD TYPES: Inductive loads (e.g., squirrel-cage motors), resistive loads.
