The Siemens 3RT2023-1AL20 is a SIRIUS 3RT2 series S0 frame 3-pole power contactor designed for reliable switching of three-phase motors up to 4 kW at 400 V AC. It features mirror contact elements, screw terminals, and an AC/DC control coil (230 V AC, 50/60 Hz), making it suitable for industrial motor control, automation systems, and HVAC starter circuits.
This model belongs to the S0 size range, which is widely used in industrial control panels for medium-duty motor loads, offering higher performance and durability than S00 variants.
According to Siemens SIRIUS technical datasheets, the 3RT2023-1AL20 is rated at 9 A AC-3, supporting motor loads up to 4 kW at 400 V AC, with standard 3 NO main contacts and auxiliary contacts (1 NO + 1 NC) depending on configuration.
The mirror contact system provides mechanically linked feedback of the main contacts, which is important for PLC interlocking, safety circuits, and machine status monitoring, ensuring that the controller can verify the actual switching state of the contactor for safe operation.
With screw terminals, the device ensures secure, vibration-resistant wiring and long-term reliability in industrial environments.
| Parameter | Specification |
|---|---|
| Product Series | Siemens SIRIUS 3RT2 |
| Model Number | 3RT2023-1AL20 |
| Product Type | Power Contactor |
| Contactor Configuration | 3 Pole |
| Rated Current (AC-3) | 9 A |
| Motor Rating | 4 kW @ 400 V AC |
| Coil Type | AC/DC (230 V AC control family) |
| 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 |
No reviews yet.