3RT1945-6A

The Siemens 3RT1945-6A is a dedicated main contact replacement kit for the 3RT1045 (S3 size, AC-3 37kW) contactor. It includes 3 sets of movable and 6 sets of fixed contacts and mounting parts, which can extend the service life of the contactor and reduce the overall replacement cost. Kenxin Motor provides original factory optional services.

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Siemens 3RT1945-6A Main Contact Replacement Kit for 3RT1045 S3 Contactors

Product Positioning

The 3RT1945-6A is a main contact replacement kit for Siemens SIRIUS large 3RT10 series contactors, specifically designed for the 3RT1045 (S3 size, AC-3 37kW/400V) model. It includes 3 sets of moving contacts, 6 sets of fixed contacts, and corresponding mounting parts. When the main contacts wear due to prolonged switching, they can be replaced using this kit without replacing the entire contactor. Kenxin Motors is an authorized Siemens distributor, providing accurate selection and inventory check services.

Core Product Advantages and Features

Complete contact combination

It contains 3 sets of movable contacts and 6 sets of fixed contacts, and can be installed in one piece with the mounting parts.

Extend equipment life

Provide replacement solutions for main contact wear, avoiding the need to replace the entire contactor.

Original factory compatible models

Designed specifically for 3RT1045 (S3 size, AC-3 37kW/400V) contactors

Reduce maintenance costs

Replacing the entire contact group is more cost-effective than replacing the entire contactor.

Kenxin Motors provides professional support.

Authorized agents provide accurate model number comparisons to avoid purchasing incompatible parts.

project	Specification
model	3RT1945-6A
Product Type	Main contact replacement group (3 moving, 6 stationary)
Applicable product series	SIRIUS 3RT10 Large Contactor
Applicable models	3RT1045 (S3 size)
Corresponder specifications	AC-3 80A, 37kW/400V, 3 poles, 3 sets of normally open main contacts
net weight	0.117 kg
Original brand	Siemens
Product Status	The original manufacturer has listed it as obsolete; we recommend inquiring about alternative solutions.

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