The Siemens 3TF31100AB0 is a 3-pole industrial power contactor from the Siemens 3TF series, designed for switching and controlling 3-phase AC motors and electrical loads in industrial automation systems.
It is widely used in MCC panels, motor starter circuits, pump control systems, compressors, HVAC systems, and OEM machinery, where reliable switching of motor loads is required.
This model belongs to the 3TF31 Size 00 class (higher capacity than 3TF30 series) and is typically used for motor control up to around 5.5 kW / 12A AC-3 duty range, depending on installation conditions.
• Siemens 3TF series power contactor
• Model: 3TF31100AB0
• 3-pole contactor design
• AC coil operated (commonly 24V AC / 230V AC depending on suffix configuration)
• Rated for ~12A AC-3 motor duty
• Suitable for 3-phase motor switching
• Size 00 industrial compact design
• High electrical and mechanical life
• Screw terminal connection system
• Reliable arc quenching system
• Shock and vibration resistant construction
• Compatible with thermal overload relays
• Auxiliary contact (typically 1NO configuration in this variant family)
• Designed for MCC and automation panels
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Series | 3TF |
| Part Number | 3TF31100AB0 |
| Product Type | Power Contactor |
| Poles | 3 Pole |
| Coil Type | AC Coil (variant dependent) |
| Rated Current | ~12A (AC-3 duty) |
| Rated Power | ~5.5 kW at 415V AC |
| Utilization Category | AC-3 (motor control) |
| Frame Size | Size 00 |
| Mounting Type | Panel / DIN rail mounting |
| Terminal Type | Screw terminals |
| Application | Motor control, power switching |
| Brand | Siemens |
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