🔹 Power Contactor – Siemens 3TS51220AF008K (3TS Series, Heavy Duty, 3-Pole AC Coil)
The Siemens 3TS51220AF008K is a heavy-duty power contactor from the 3TS series, designed for switching high-power electrical loads in industrial applications. It is commonly used in motor control, heavy-duty pumps, compressors, HVAC systems, and industrial automation panels where reliable high-current switching is required.
This contactor is built for AC-3 duty operation and is suitable for large induction motor control. It provides strong electrical endurance, robust arc suppression, and long mechanical life even under frequent switching conditions in demanding industrial environments.
🔹 Key Features
• Siemens 3TS Heavy Duty Series contactor
• Model: 3TS51220AF008K
• 3-pole (3P) configuration for 3-phase systems
• AC coil operated design
• Heavy-duty industrial grade construction
• Suitable for motor switching (AC-3 duty)
• High current handling capability (approx. 140 A class frame family)
• Strong arc-quenching system for long electrical life
• Suitable for MCC and industrial power panels
• Reliable operation under continuous load conditions
• Shock and vibration resistant design
• Low maintenance and high durability
• Compatible with Siemens auxiliary accessories
| Parameter | Specification |
|---|---|
| Product Series | Siemens 3TS Heavy Duty Series |
| Model Number | 3TS51220AF008K |
| Product Type | Power Contactor |
| Pole Configuration | 3 Pole (3P) |
| Coil Type | AC Coil |
| Application Category | AC-3 (Motor Duty) |
| Rated Current | ~140 A class |
| Mounting Type | Panel Mounting |
| Usage | Heavy motors, pumps, compressors, industrial drives |
| Brand | Siemens |
| Duty Type | Heavy Industrial / Motor Control |
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