Siemens 3RT1955-5NB31 Withdrawable Coil for SIRIUS S6 Contactors Original Brand New
$113.90
Siemens 3RT1955-5NB31 Withdrawable drive for contactors 3RT105, 3RT145 AC (50…60 Hz) / DC operation, 21 … 27.3 V Operating mechanism: electronic with PLC input 24 V DC Screw terminal
Overview: Electronic Withdrawable Drive for SIRIUS S6 Contactors
The Siemens 3RT1955-5NB31 is a high-performance, withdrawable electronic drive (or solenoid coil) engineered specifically for seamless integration with SIRIUS S6 power contactors, namely the 3RT105 and 3RT145 models. This critical component ensures reliable and consistent operation of your industrial control equipment.
Featuring an advanced electronic operating mechanism, this coil supports AC (50-60 Hz) and DC operation within a versatile control supply voltage range of 21 V to 27.3 V UC. Crucially, it incorporates a 24 V DC PLC interface (SPS Interface), allowing for direct, efficient, and precise control from a Programmable Logic Controller (PLC) in modern automated systems. The robust screw terminal connection guarantees a secure and durable electrical contact.
Benefit
- Direct PLC Integration: The dedicated 24 V DC PLC input simplifies wiring and direct control from your automation system, reducing complexity and potential error points.
- Universal Voltage Flexibility (AC/DC): Supports a wide 21-27.3V AC or DC control voltage range, making it highly versatile for global installations and diverse power supplies.
- High Reliability: As a genuine Siemens SIRIUS component, it ensures compatibility and the trusted reliability required for demanding industrial applications.
- Easy Maintenance: The withdrawable design facilitates quick and simple coil replacement, minimizing downtime for maintenance or system upgrades.
- Secure Wiring: Screw terminals provide a tried-and-tested, robust method for connecting control wires, ensuring long-term connection integrity.
Function: Role in the Contactor System
The 3RT1955-5NB31 functions as the magnetic core of the SIRIUS S6 contactor. When the 24V DC signal is received from the PLC, the electronic drive precisely controls the magnetic force, rapidly and reliably pulling the armature to close or open the main power contacts. This allows the contactor to effectively switch high currents to motors or other loads based on the low-voltage signals from the PLC.
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| Weight | 0.62 kg |
|---|---|
| Dimensions | 124.5 × 86.5 × 105 mm |
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