Siemens SIRIUS 3RT1955-5AS32 Withdrawable Coil / Operating Drive for 3RT105/3RT145 Contactors, 500-550V AC/DC, Spring-Type Terminal Original Brand New

Overview

The Siemens SIRIUS 3RT1955-5AS32 is a high-quality, genuine withdrawable operating drive (often called a replacement coil) designed for use with Siemens 3RT105 and 3RT145 power contactors (Size S6, S10, S12). This crucial component ensures the reliable switching function of your contactor in industrial control applications. It is engineered for flexible AC (50...60 Hz) / DC operation and has a wide control supply voltage range of 500 to 550 Volts. The unit incorporates the modern Standard and Economy Circuit operating mechanism for efficient power consumption and is equipped with Spring-type terminals for fast, vibration-proof wiring.

Key Benefit

• Cost-Effective Maintenance: Replace only the operating drive/coil instead of the entire contactor, significantly reducing maintenance costs and downtime.
• Energy Efficiency: Features a Standard/Economy Circuit design which reduces holding power once the contactor has pulled in, saving energy over the device's operational life.
• Universal Compatibility: Designed for both AC and DC control supply, offering flexibility in panel design and spares inventory.
• Secure & Fast Wiring: Utilizes robust Spring-type terminals, ensuring a reliable, permanent connection that resists vibration and speeds up installation time compared to screw terminals.

Application

This withdrawable drive is an essential spare part for maintaining the control circuitry in:

• Industrial Motor Control Centers (MCCs)
• Heating, Ventilation, and Air Conditioning (HVAC) systems
• Pump and Fan control panels
• Any industrial setup utilizing Siemens 3RT105 or 3RT145 power contactors requiring a 500-550V AC/DC control voltage.

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