Product Description
🔹 Power Contactor – Siemens 3TF31100AR0 (3TF Series, 3-Pole AC Coil)
🔹 Product Overview
The Siemens 3TF31100AR0 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 starters, 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 (~12A AC-3 duty rating), making it suitable for small to medium motor applications (around 5.5 kW class).
🔹 Key Features
• Siemens 3TF series power contactor
• Model: 3TF31100AR0
• 3-pole contactor design
• AC coil operated (variant dependent, typically 230V AC family in AR0 code)
• Rated for ~12A AC-3 motor duty
• Suitable for 3-phase motor switching
• Size 00 compact industrial 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 depending on configuration)
• Designed for MCC and automation panels
Technical Specifications
| Product Type | Power Contactor |
| Coil Type | AC Coil (AR0 family variant) |
| Rated Current | ~12A (AC-3 duty) |
| Rated Power | ~5.5 kW at 415V AC |
| Utilization Category | AC-3 (motor control) |
| Mounting Type | Panel / DIN rail mounting |
| Terminal Type | Screw terminals |
| Application | Motor control, power switching |
