The Siemens 3TF54020AF0 is a heavy-duty 3-pole power contactor from the proven 3TF SICOP Series, designed for switching and controlling high-capacity three-phase motors and industrial power circuits in demanding applications.
This variant is equipped with a 110V AC control coil (AF0) and features 2NO + 2NC built-in auxiliary contacts. With an AC-3 current rating of 265A, the contactor is suitable for controlling motors up to 132 kW at 415V AC, making it ideal for MCC panels, large motor starters, compressors, pumps, HVAC plants, mining equipment, conveyors, and industrial automation systems.
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Series | 3TF SICOP |
| Part Number | 3TF54020AF0 |
| 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) | 265A |
| Motor Power Rating | 132 kW @ 415V AC |
| AC-1 Rating | 400A |
| Rated Insulation Voltage (Ui) | 1000V |
| Frame Size | S12 |
| 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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