3RA1972-2F
The Siemens SIRIUS 3RA1972-2F is a dedicated mounting base for star-delta (YD) starters. It can accommodate three 3RT1 series contactors side by side, forming a combination structure of main contactor, delta contactor and star contactor. This allows users to easily assemble star-delta starting circuits according to site requirements. The installation is simple and the structure is stable.
Product Positioning
The 3RA1972-2F is a mounting base plate for Siemens SIRIUS series star-delta starters. It can fix three 3RT1 series contactors side by side on the same base plate, making it easy to form a star-delta starter circuit.
Core Product Advantages and Features
Three contactors are fixed side by side.
The base plate can hold three 3RT1 series contactors at a time, corresponding to the main, delta, and star groups required for star-delta starting.
Stable structure and easy to install
The metal base plate provides stable support, reducing vibration and displacement during contactor operation.
Use with wiring harness
The main circuit connection can be completed by separately using 3RA1973 series busbars or wiring harnesses.
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3RA1973-2A
The Siemens SIRIUS 3RA1973-2A is a busbar connection assembly required for S12 size forward and reverse (reversible) starters. It can connect two 3RT1.7 type contactors in a busbar manner to form a forward and reverse circuit, replacing the traditional loose wiring method. It is quick to install and the circuit is neat. It is suitable for use with base plates and mechanical interlocks.
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3RA1972-2E
The Siemens SIRIUS 3RA1972-2E is a mounting base for star-delta (YD) starters. It is designed for combinations of three contactors of mixed sizes (S12, S12, and S10). The main contactor and delta contactor are S12 size, while the star contactor is the smaller S10 size. It is suitable for applications with high motor power but low star circuit current.
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3RA1972-2A
The Siemens SIRIUS 3RA1972-2A is a dedicated mounting base for reversible (rotational) starters. It can fix two S12 size 3RT1.7 contactors side by side on the same base, making it convenient for users to assemble reversible motor starter circuits. It is usually combined with a busbar assembly and mechanical interlock to form a complete device, with a net weight of approximately 2.322 kg.