3RT1975-6A

The 3RT1975-6A is a main contact replacement kit for the SIRIUS 3RT1075 (S12 base, AC-3 200kW) contactor. It weighs approximately 0.772kg and includes movable and fixed contacts and mounting hardware. It is used for contactor maintenance and replacement.

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Siemens 3RT1975-6A Main Contact Replacement Kit for 3RT1075 S12 Frame 200kW

Product Positioning

The 3RT1975-6A also falls under the spare parts category for Siemens SIRIUS large contactors, corresponding to the 3RT1075 (S12 frame, AC-3 rated 200kW). It is a sister kit to the 3RT1976-6A, which is in the adjacent power rating. When the main contacts of the contactor become eroded or deformed due to long-term switching of large currents, this kit can be directly replaced instead of replacing the entire contactor. This is a practical approach to extend the service life of large equipment and control spare parts inventory costs.

Core Product Advantages and Features

Dedicated for 3RT1075

Designed according to the shape and electrical specifications of SIRIUS 3RT1075 (S12 frame), ensuring that the contact pressing force and conductivity quality are consistent with the original.

Contains complete contacts and components

The kit consists of 3 sets of movable contacts, 6 sets of fixed contacts, and mounting hardware. It weighs approximately 0.772kg and measures approximately 72x94x77mm, making it easy to replace on-site.

Corresponding to AC-3 200kW level

Suitable for use in the starting circuit of large motors, it can withstand the mechanical and electrical losses caused by high-frequency opening and closing.

Original part number traceable

EAN barcodes and part numbers can be verified in the Siemens system, ensuring that the source and quality of the goods are genuine products from the manufacturer.

project	Specification
Product Type	Main contact replacement kit (incomplete contactor)
Applicable contactors	SIRIUS 3RT1075
Base size	S12
Corresponding power	AC-3 200kW
Kit contents	Movable contacts x3, fixed contacts x6, mounting parts
weight	Approximately 0.772 kg
External dimensions	Approximately 72 x 94 x 77 mm
Extreme number	3 poles
Place of origin	Germany
brand	Siemens

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