Siemens 3RT1956-1CF00 Surge Suppressor RC Element for 3RT1 Contactors (400-600V AC) Original Brand New

Overview

The Siemens 3RT1956-1CF00 is a high-performance surge suppressor designed specifically for use with Siemens 3RT1 contactors in sizes S6, S10, and S12. This RC (Resistor-Capacitor) element provides essential protection against voltage spikes and surges, which can be generated when switching inductive loads.

By effectively damping these surges, the 3RT1956-1CF00 helps to extend the lifespan of contactor coils, reduce electromagnetic interference (EMI), and ensure reliable operation of your electrical circuits. Featuring a simple and secure screw terminal connection, this surge suppressor is easy to install directly onto the contactor, making it an ideal solution for industrial control applications operating on 400 to 600 V AC.

Benefit

• Extended Contactor Lifespan: Protects the sensitive contactor coil from damaging voltage peaks, significantly increasing its operational life.
• Enhanced System Reliability: Prevents nuisance tripping of protective devices and ensures stable operation of your machinery by suppressing disruptive voltage surges.
• Reduced Electromagnetic Interference (EMI): Minimizes the generation of electrical noise that can interfere with sensitive electronic equipment located nearby.
• Easy Installation: Designed for quick and hassle-free mounting directly onto the 3RT1 contactor with secure screw terminals.
• Broad Application: Compatible with a wide range of Siemens 3RT1 contactors (S6, S10, S12) and suitable for a broad voltage range of 400 to 600 V AC.
• Cost-Effective Protection: A small investment in surge suppression can prevent costly repairs and downtime associated with contactor failure.

Function

The Siemens 3RT1956-1CF00 surge suppressor works by connecting a resistor and a capacitor in series (an RC element) across the contactor coil. When the contactor is de-energized, the collapsing magnetic field in the coil induces a high-voltage spike.

The capacitor in the RC element provides a path for this surge, effectively “absorbing” the energy, while the resistor helps to dissipate it as heat. This process smoothly dampens the voltage peak, preventing it from reaching a damaging level and protecting both the contactor and other components in the circuit.

Specification

• Product Number: Siemens 3RT1956-1CF00
• Product Type: Surge Suppressor (RC Element)
• Compatibility: Siemens 3RT1 Contactors, sizes S6, S10, S12
• Connection Type: Screw Terminal (Drive)
• Rated Voltage: 400 … 600 V AC
• Application: Damping voltage peaks and surges for inductive loads

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