3RT1946-6D

The Siemens 3RT1946-6D is a main contact replacement kit designed for S3 frame, three-pole contactors. It is rated AC-1 140 amps and has 3 sets of normally open contacts, including 3 sets of movable and 6 sets of fixed contacts. It is suitable for the repair of older 3RT1046 series contactors.

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Siemens 3RT1946-6D Main Contact Replacement Kit AC-1 140A S3 Frame

Product Positioning

The 3RT1946-6D is a main contact replacement kit from the Siemens SIRIUS contactor series, suitable for S3 frame three-pole contactors. It is rated AC-1 category, 140 amps, and features 3 normally open (3NO) main contacts. The kit also provides 3 movable contacts with 6 fixed contacts and mounting parts. According to the manufacturer's information, this part number has been superseded by the subsequent SIRIUS 3RT2 series. It is suitable for existing equipment still using the earlier 3RT1046 series contactors for contact maintenance and upgrades, allowing older production lines to maintain stable operation with sufficient parts supply without immediately replacing the entire control system.

Core Product Advantages and Features

AC-1 Category 140A Design

Rated AC-1, 140 amps, suitable for contactor maintenance needs in resistive or general load switching applications.

3 sets of normally open main contacts

The kit is configured with a 3NO (3 sets of normally open) contact structure, corresponding to the main circuit configuration of the S3 frame three-pole contactor.

Complete with 3 moving and 6 stationary parts

It includes 3 sets of movable contacts, 6 sets of fixed contacts, and mounting parts, allowing you to purchase all the necessary components at once for a complete replacement.

Suitable for backup repair of older models

Original factory compatible with the older 3RT1046 series (later replaced by SIRIUS 3RT2), suitable for long-term spare parts maintenance of existing equipment.

project	Specification
Product Model	3RT1946-6D
Product Type	Contactor main contact replacement kit
Applicable framework	S3 (Three-pole contactor)
Use category	AC-1
Rated current	140 A
Contact type	3NO (3 sets of normally open main contacts)
Contact configuration	3 sets of movable contacts + 6 sets of fixed contacts, including mounting parts
Corresponding model status	The original manufacturer indicated that it was compatible with older contactor models, which were subsequently replaced by the SIRIUS 3RT2 series.
Product Nature	Contactor repair spare parts, non-independent contactor body

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