Siemens 3RT1965-5XF42 Changeover Mechanism, 110V DC, PLC Input Original Brand New

Overview

The Siemens 3RT1965-5XF42 is a crucial changeover operating mechanism designed for use with specific Siemens contactors and relays: the 3RT106.-.X..-0LA2 (power contactors) and 3RT146.-.X..-0LA2 (power relays). This component facilitates reliable switching and control functions within industrial automation systems.

It features a coil/supply voltage of 110 V DC with a wide operating range of 0.7 to 1.25 times the rated voltage, ensuring dependable performance. The integration of a dedicated PLC input (24…110 V DC) allows for seamless interfacing with programmable logic controllers.

Key Benefit

• Enhanced Reliability: Provides dependable changeover functionality for critical contactor/relay operation.
• Broad Compatibility: Specifically engineered for the 3RT106 and 3RT146 series with the -0LA2 designator.
• Flexible Voltage Range: The coil operates reliably between $77\text{ V DC}$ and $137.5\text{ V DC}$ ($\text{110 V DC}\times 0.7\text{ to }1.25$).
• PLC Integration: Dedicated PLC input supports direct control from $24\text{ V DC}$ to $110\text{ V DC}$ systems.
• Fast, Secure Wiring: Utilizes spring-loaded terminals for quick, vibration-proof, and maintenance-free connections.

Technical Function

This operating mechanism serves as the interface between the control system and the main power switching element (contactor/relay). It receives control signals and mechanically actuates the changeover of the main and auxiliary contacts.

The 110 V DC coil initiates the operation, while the separate 24…110 V DC PLC input monitors or influences the control state. The spring-loaded terminal technology ensures a permanent, gas-tight connection, vital for high-vibration industrial environments.

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