Siemens 3RT1966-5AV31 Changeover Operating Mechanism for 3RT126 Vacuum Contactor, 380-420V AC/DC Original Brand New

Overview

The Siemens 3RT1966-5AV31 Changeover Operating Mechanism is an essential accessory (specifically a withdrawable coil) designed for the SIRIUS 3RT126 Vacuum Contactor size S10. This high-performance coil ensures reliable operation of your industrial switching equipment, supporting both AC (50/60 Hz) and DC control voltages within the range of 380 to 420V UC (Universal Control). Its robust design features a screw terminal connection for secure and easy wiring, making it ideal for standard and economy circuit applications.

Benefit

• Universal Compatibility (UC): Operates reliably with both AC and DC control voltages (380-420V), simplifying inventory and application flexibility.
• Optimized Performance: Designed for use with the Siemens 3RT126 vacuum contactor, ensuring precise and long-lasting switching operations.
• Flexible Operation: Supports both Standard and Economy Circuit operating modes, allowing for energy-efficient control based on application requirements.
• Secure Connection: Features sturdy Screw Terminals for a reliable, vibration-resistant electrical connection.
• Genuine Siemens Quality: A reliable, original component from the SIRIUS industrial control range, guaranteeing durability and consistent performance.

Technical Function

The 3RT1966-5AV31 acts as the withdrawable magnet coil for the 3RT126 contactor. When the control voltage (380-420V UC) is applied via the screw terminals, the coil generates a magnetic field. This field is responsible for driving the mechanical changeover operating mechanism, causing the vacuum contactor’s main contacts to close (or open) and thus control the connected electrical load (typically motors in size S10 applications).