Siemens SIRIUS 3RT1965-5AF32 Changeover Operating Mechanism 110-127V AC/DC Coil, Spring-Type Terminal Original Brand New

Overview

The Siemens 3RT1965-5AF32 is a high-performance Changeover Operating Mechanism (Solenoid Coil) from the renowned SIRIUS modular system, specifically engineered as an essential accessory for Siemens 3RT106 and 3RT146 Power Contactors. This core component enables the reliable switching functionality of the contactor, ensuring optimal performance in demanding industrial control applications.

The coil operates on a flexible control supply voltage of 110 to 127 V using either AC (50/60 Hz) or DC current (UC – Universal Current), making it highly versatile for global installations. It features a robust design with spring-type terminals for quick, secure, and vibration-proof connection, and supports both standard and economy circuit operation modes for energy efficiency.

Benefits & Key Features

1. Universal AC/DC Compatibility ($110-127\text{V}$): Reduces inventory and simplifies engineering by accommodating both AC and DC control voltages within the $110\text{V}$ to $127\text{V}$ range.
2. Energy Efficiency: Supports an economy circuit function, which typically lowers the holding power consumption after the contactor is closed, saving energy and reducing heat generation.
3. Vibration-Proof Connection: The integrated spring-type terminals provide tool-free, gas-tight, and highly reliable connections, resisting loosening under vibration often found in industrial environments.
4. Optimized for SIRIUS Contactor Range: Specifically designed for perfect compatibility and easy plug-in replacement or installation on 3RT106 and 3RT146 contactors.
5. Genuine Siemens Quality: Manufactured in Germany, ensuring high standards of reliability and a long operational lifespan as part of the trusted SIRIUS family.

Function & Application

The 3RT1965-5AF32 functions as the electromagnetic drive (coil) that generates the force to close the main contacts of the compatible contactor (3RT106/3RT146) when control voltage is applied.

Primary Application Areas:

• Replacement or spare part for Siemens 3RT106 and 3RT146 contactors.
• Industrial motor control applications requiring $110\text{V}$ to $127\text{V}$ control voltage.
• Control panel builders requiring flexible AC/DC universal coil options.
• Systems where vibration resistance (due to spring-type terminals) is crucial for connection integrity.

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