The Siemens 3RT2023-1AP00 is a SIRIUS 3RT2 series S0 frame 3-pole power contactor designed for reliable switching of three-phase motors up to around 4 kW at 400 V AC. It comes with mirror contact elements, screw terminals, and an AC control coil (230 V AC, 50/60 Hz), making it suitable for industrial motor starters, HVAC systems, and control panel applications.
This model belongs to the S0 size range, which is commonly used for medium-duty motor switching applications, offering higher thermal capacity and durability compared to S00 frame devices.
According to Siemens official SIRIUS datasheet, the 3RT2023-1AP00 is rated for AC-3 / AC-3e operation at 9 A, supporting motor loads up to 4 kW at 400 V AC, with 3 NO main contacts and auxiliary contacts (1 NO + 1 NC) in standard configuration.
The mirror contact elements provide mechanically linked feedback of the main contacts, which is essential for PLC interlocking, safety circuits, and machine status monitoring, ensuring that the controller can verify the actual ON/OFF state of the contactor for safe operation and diagnostics.
With screw terminals, the device ensures strong, vibration-resistant wiring suitable for long-term industrial use in control cabinets.
| Parameter | Specification |
|---|---|
| Product Series | Siemens SIRIUS 3RT2 |
| Model Number | 3RT2023-1AP00 |
| Product Type | Power Contactor |
| Contactor Configuration | 3 Pole |
| Rated Current (AC-3) | 9 A |
| Motor Rating | 4 kW @ 400 V AC |
| Coil Type | AC Coil (230 V AC) |
| Auxiliary Contact | 1 NO + 1 NC |
| Contact Feedback | Mirror Contact Elements |
| Terminal Type | Screw Terminals |
| Frame Size | S0 |
| Application | Motor Control & Power Switching |
| Brand | Siemens |
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