3RT1956-1CD00

The Siemens SIRIUS S6/S10/S12 frame large contactor RC surge suppressor is suitable for coil voltages of 127~240VAC/150~250VDC. It can reduce surge interference at the moment of coil release and protect control circuit components.

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Siemens 3RT1956-1CD00 SIRIUS RC Surge Suppressor 127-240VAC

Product Positioning

The 3RT1956-1CD00 is an RC surge suppressor designed by Siemens for large SIRIUS contactors such as S6, S10, and S12. It is directly mounted on the screw terminal of the contactor's operating mechanism and is suitable for coil voltages of 127~240VAC or 150~250VDC. It can effectively reduce the induced surge released when the coil is de-energized, protecting adjacent control circuits and PLC output points.

Core Product Advantages and Features

RC absorbs surge

A combination of resistors and capacitors (RC) is used to suppress the induced surge voltage at the moment the coil is de-energized.

Wide voltage compatibility

Covering two coil voltage ranges: 127~240VAC and 150~250VDC.

Cross-framework general

It can be installed on various large contactor operating mechanisms such as S6, S10, and S12.

Screw terminal installation

The screw terminal connection facilitates easy on-site installation and replacement.

Protection control circuit

Reduce the risk of surge interference and damage to PLC output contacts or nearby electronic components.

project	Specification
Product Name	RC Surge Suppressor
Applicable framework	S6 / S10 / S12
Applicable coil voltage (AC)	127~240 V AC
Applicable coil voltage (DC)	150~250 V DC
Connection method	Screw terminals
net weight	Approximately 0.031 kg
Packaging size	Approximately 35 x 70 x 28 mm
country of origin	Czech Republic
Manufacturer	Siemens

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