The Siemens 3TC44170BF0 is a heavy-duty industrial power contactor from the Siemens 3TC series, designed for switching electrical loads in motor control, power distribution, and industrial automation systems.
It is a 2-pole DC/AC operational contactor with an AC control coil (110V AC, 50/60 Hz), used in applications requiring reliable high-current switching in MCC, PCC, and industrial machinery.
This contactor is engineered for high durability, long mechanical life, and safe switching of DC and AC loads in industrial environments.
• Siemens 3TC series power contactor
• Model: 3TC44170BF0
• 2-pole heavy-duty contactor
• AC control coil (110V AC / 132V AC 50/60 Hz)
• Industrial-grade switching capability up to 32A
• Suitable for DC-3 / DC-5 duty applications
• Screw terminal connection for secure wiring
• High mechanical endurance (industrial cycle rated)
• Compact size 2 design
• Auxiliary contacts available (variant dependent)
• Shock and vibration resistant construction
• Designed for harsh industrial environments
• Suitable for motor and power control circuits
• Long service life and reliable operation
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Series | 3TC |
| Part Number | 3TC44170BF0 |
| Product Type | Power Contactor |
| Poles | 2 Pole |
| Coil Voltage | 110V AC (50 Hz) / 132V AC (60 Hz) |
| Rated Current | Up to 32A |
| Utilization Category | DC-3 / DC-5 |
| Mounting Type | Panel / rail mounting |
| Terminal Type | Screw terminals |
| Mechanical Life | Up to 10 million operations |
| Application | Motor control, power switching |
| Brand | Siemens |
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