3RT1935-6A

This is a Siemens SIRIUS S2 size contactor main contact replacement kit, compatible with the 3RT1035 series and AC-3 18.5kW contactors. The kit includes movable and fixed contacts and mounting parts, weighing approximately 0.046kg. It is suitable for regular maintenance and replacement of worn contacts. This kit is discontinued by the manufacturer, so please plan your replacement schedule in advance.

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Siemens 3RT1935-6A SIRIUS S2 contactor main contact replacement kit

Product Positioning

The 3RT1935-6A is a dedicated main contact replacement kit for Siemens SIRIUS large series S2 size contactors, suitable for AC-3 rated 18.5kW 3RT1035 series contactors. The kit contains 3 sets of movable contacts and 6 sets of fixed contacts, weighing approximately 0.046 kg. It restores the contactor's conducting performance to original factory specifications after contact erosion due to prolonged switching. This model is discontinued by Siemens; existing spare parts for this model can be sourced and upgrade plans can be planned with the assistance of Kenxin Motor.

Core Product Advantages and Features

Original contact kit

Completely includes both movable and fixed contacts, restoring the contactor's original conducting characteristics.

AC-3 18.5kW

Precisely corresponds to the rated power of the 3RT1035 series contactor

Net weight specified

Approximately 0.046 kg, which facilitates the estimation of inventory and transportation costs.

3-pole design

Applicable to the main circuit of 3-phase power contactor

Discontinued Models Reminder

The original manufacturer has ceased production; it is recommended to prepare materials in advance or evaluate upgrade options for the SIRIUS 3RT2 series.

project	Specification
Product Type	Contactor main contact replacement kit (contact group)
Applicable contactor series	3RT1035 (S2 size)
Extreme number	3 poles
Contact type	3 sets of normally open (NO) main contacts, including 3 sets of movable contacts and 6 sets of fixed contacts.
AC-3 rated power	18.5 kW
net weight	0.046 kg
Packaging size	45×80×15 mm
Product Status	The original manufacturer has ceased production (as of October 1, 2017). It is recommended to switch to the SIRIUS 3RT2 series.

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