3RA2943-2C

The Siemens 3RA2943-2C is an electrical wiring kit for star-delta starters in the SIRIUS 3RA29 series. It is suitable for combinations of S3-sized main contactors and delta contactors, and S2-sized star contactors. It provides a complete set of wiring and terminal accessories to help correctly wire the three contactors to form a complete star-delta reduced voltage starting circuit.

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Siemens 3RA2943-2C SIRIUS Star-Delta Wiring Kit S3/S3/S2

Product Positioning

The 3RA2943-2C is an electrical wiring kit specifically designed for star-delta (Y-Δ) step-down starting circuits. It is compatible with combinations of S3 size main contactors and delta contactors, and S2 size star contactors. The kit includes wiring conductors and terminal parts, eliminating the need for on-site measurement and cutting of wires, and speeding up control panel assembly and subsequent maintenance and replacement.

Core Product Advantages and Features

Dedicated star-delta wiring design

The wire diameter and length are pre-designed for the combination of three contactors: S3 (main), S3 (delta), and S2 (star).

shorten assembly time

No need for on-site manual wire cutting and measurement; power wiring can be completed simply by installing the kit.

Compatible with SIRIUS 3RT2 series

It can be paired with a 3RT2 series contactor of the corresponding size to form a star-delta starter.

Electrical wiring is the main focus.

This is an electrical connection kit, focusing on the integration of wiring between power circuits.

Improve maintenance efficiency

Standardized spare parts allow for direct replacement or repair with the same type of kit.

project	Specification
Product Type	Star-delta (Y-Δ) electrical wiring kit
Applicable size combinations	Main/Triangle S3, Star S2
Applicable series	SIRIUS 3RT2 contactor
Wiring method	Screw terminals

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