3RT1935-5AN21

The 3RT1935-5AN21 is a dedicated magnetic coil for Siemens SIRIUS large S2 contactors. It is rated for AC220V and is a dual-frequency universal coil for 50/60Hz. It is suitable for 3RT1035 and 3RT1036 series contactors. It uses screw terminal connection and is a genuine spare part number registered by the manufacturer, which allows maintenance personnel to quickly replace faulty coils.

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Siemens 3RT1935-5AN21 SIRIUS S2 220V contactor coil actual product photo

Product Positioning

The 3RT1935-5AN21 is an original equipment manufacturer (OEM) replacement coil for Siemens SIRIUS S2-size large power contactors. When the contactor coil in field equipment burns out or its performance deteriorates due to prolonged operation, it is not necessary to replace the entire expensive contactor unit; simply replacing this coil will restore its operating function. This coil has a rated voltage of AC220V and can be used at both 50/60Hz frequencies. It is suitable for 3RT1035 and 3RT1036 series contactors and is a standard spare part for production line maintenance.

Core Product Advantages and Features

Original part number

3RT1935-5AN21 is a standard part number registered by Siemens, and is not a counterfeit coil from an aftermarket manufacturer. Its quality and compatibility are guaranteed.

AC220V Dual Frequency Universal

The coil is rated for AC 220V and can operate normally at 50Hz and 60Hz, making it suitable for use in machines in Taiwan and for export.

Corresponding to S2 size contactor

Designed specifically for SIRIUS S2 size contactors of the 3RT1035 and 3RT1036 series. Please verify the last three digits of the contactor model number before purchasing.

Screw terminal connection

Using traditional screw terminals for fixing, on-site wiring and replacement are quite intuitive and do not require special tools.

Reduce downtime costs

The contactor can be repaired simply by replacing the coil, eliminating the time and cost of replacing the entire unit, making it suitable as a spare part for the production line.

Authorized distributor warranty

Kenxin Motors is an authorized distributor of Siemens, and all products shipped are genuine Siemens products with full after-sales warranty service.

project	Specification
Product Name	SIRIUS contactor replacement coil
Applicable size	S2
Rated voltage	AC 220V
Rated frequency	50/60Hz
Connection method	Screw terminals
Applicable contactors	3RT1035 and 3RT1036 series
country of origin	Germany
brand	Siemens SIRIUS

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