The Siemens 3RT2017-1AF018K is a SIRIUS 3RT2 series 3-pole power contactor designed for reliable switching of three-phase motors up to 5.5 kW at 400 V AC. It features mirror contact elements, screw terminal connections, and a 110 V AC control coil (50/60 Hz), making it suitable for use in motor control centers (MCCs), automation systems, HVAC applications, and industrial power distribution systems.
This model belongs to the compact S00 frame size and is rated for AC-3 / AC-3e duty up to 12 A, making it ideal for small motor switching applications where dependable operation and easy panel integration are required.
The integrated mirror contact elements provide mechanically linked feedback of the main contacts. This is essential for PLC interlocking, safety circuits, and system monitoring, ensuring that the controller can reliably confirm whether the contactor is actually ON or OFF during operation.
With screw terminals, installation remains secure, vibration-resistant, and suitable for long-term industrial use in control panels.
• Siemens SIRIUS 3RT2 series power contactor
• Model: 3RT2017-1AF018K
• 3-pole motor switching contactor
• Rated AC-3 current: 12 A
• Motor rating: 5.5 kW @ 400 V AC
• Control coil: 110 V AC (50/60 Hz)
• Mirror contact elements for safety feedback
• Screw terminal connection system
• Compact S00 frame size
• 1 NO auxiliary contact
• High electrical endurance and reliable switching
• Suitable for industrial automation and MCC panels
• Compatible with Siemens SIRIUS modular accessories
| Parameter | Specification |
|---|---|
| Product Series | Siemens SIRIUS 3RT2 |
| Model Number | 3RT2017-1AF018K |
| Product Type | Power Contactor |
| Contactor Configuration | 3 Pole |
| Rated Current (AC-3) | 12 A |
| Motor Rating | 5.5 kW @ 400 V AC |
| Coil Type | 110 V AC (50/60 Hz) |
| Auxiliary Contact | 1 NO |
| Contact Feedback | Mirror Contact Elements |
| Terminal Type | Screw Terminals |
| Frame Size | S00 |
| Application | Motor Control & Power Switching |
| Brand | Siemens |
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