Siemens 3RT1955-5AB31 Withdrawable Drive for 3RT105/3RT145 Contactors, AC/DC 23-26V, Screw Terminal Original Brand New

Overview

The Siemens 3RT1955-5AB31 is a highly versatile and essential component for modern industrial control systems. This withdrawable drive is specifically designed to work seamlessly with Siemens SIRIUS 3RT105 and 3RT145 power contactors, enabling both AC and DC operation. Its key feature is the flexible supply voltage range of 23 to 26 V, accommodating a wide array of low-voltage applications. The unit incorporates both a standard and an economy circuit, ensuring reliable performance while also offering energy-saving capabilities under certain operational conditions. With its robust screw terminal connections, installation is straightforward and secure, making it a dependable choice for professionals seeking efficiency and reliability.

Key Benefit

• Enhanced Flexibility: Designed for both AC (50-60 Hz) and DC operation, providing broad compatibility across different power systems.
• Energy Efficiency: The integrated economy circuit reduces power consumption, lowering operational costs and contributing to a more sustainable system.
• Simplified Installation: Features secure screw terminals, allowing for quick, easy, and reliable wiring.
• Space-Saving Design: As a withdrawable drive, it facilitates easy maintenance and replacement without disturbing the main power wiring.
• Seamless Integration: Perfectly compatible with Siemens 3RT105 and 3RT145 contactors, ensuring a reliable and cohesive control solution.
• Robust & Reliable: Built with Siemens' renowned quality, guaranteeing long-term performance in demanding industrial environments.

Function

The Siemens 3RT1955-5AB31 serves as the crucial interface between the control circuit and the contactor's main power circuit. Its primary functions include:

• Actuation: Energizes the contactor's operating mechanism, closing the main power contacts to switch a load.
• Voltage Adaptation: Converts the low-voltage control signal (23-26V) to the necessary electrical force to operate the contactor.
• Power Optimization: The economy circuit function reduces the holding power required to keep the contactor engaged, minimizing coil heat and energy use.
• Safety & Isolation: Its withdrawable design allows for quick and safe disconnection of the operating mechanism from the contactor for maintenance or troubleshooting purposes.

Technical Specification

• Product Number: Siemens 3RT1955-5AB31
• Product Type: Withdrawable Drive / Operating Mechanism
• Compatibility: Siemens SIRIUS 3RT105 and 3RT145 Power Contactors
• Operating Voltage: 23...26 V (AC / DC)
• Frequency: 50...60 Hz (for AC operation)
• Terminals: Screw Terminals
• Circuit Type: Standard and Economy Circuit
• Manufacturer: Siemens

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