The Siemens 3TF51020AF0 is a heavy-duty 3-pole power contactor from the renowned 3TF SICOP Series, designed for reliable switching and control of high-capacity three-phase motors and industrial power circuits.
This variant is equipped with a 110V AC control coil (AF0) and comes with 2NO + 2NC built-in auxiliary contacts. With a 150A AC-3 current rating, the contactor is suitable for controlling motors up to 75 kW at 415V AC, making it ideal for heavy industrial applications such as motor control centers, pumps, compressors, HVAC systems, conveyors, and process automation.
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Series | 3TF SICOP |
| Part Number | 3TF51020AF0 |
| Product Type | Heavy Duty Power Contactor |
| Number of Poles | 3 Pole |
| Main Contacts | 3NO |
| Auxiliary Contacts | 2NO + 2NC |
| Coil Type | AC Coil |
| Coil Voltage | 110V AC |
| Frequency | 50/60 Hz |
| Rated Current (AC-3) | 150A |
| Motor Power Rating | 75 kW @ 415V AC |
| AC-1 Rating | 250A |
| Rated Insulation Voltage (Ui) | 1000V |
| Frame Size | S10 |
| Connection Type | Screw Terminal |
| Utilization Category | AC-3 |
| Protection Class | IP20 |
| Mechanical Life | Up to 10 Million Operations |
| Standard | IEC 60947-4-1 |
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