3RA2933-2C

The Siemens 3RA2933-2C belongs to the SIRIUS 3RA29 series star-delta (Y-Δ) wiring kit. It is suitable for combinations of main contactors and delta contactors of size S2 and star contactors of size S0. The kit contains electrical wiring and mechanical interlocking parts, and is divided into upper and lower modules. It is mounted with screw terminals and is suitable for reduced voltage starting applications of small and medium-sized three-phase motors.

Share To

Siemens 3RA2933-2C SIRIUS Star-Delta Wiring Kit S2/S2/S0

Product Positioning

The 3RA2933-2C is a star-delta wiring kit designed for S2/S2/S0 size combinations. It is suitable for common small and medium-sized motors with reduced-voltage starting configurations where the main contactor and delta contactor are S2 size and the star contactor is S0 size. The kit includes both electrical wiring components and mechanical interlocking structures, and is installed in upper and lower modules to help shorten the assembly, maintenance, and replacement time of the control panel.

Core Product Advantages and Features

Applicable to S2/S2/S0 combination

Star-delta starters corresponding to the sizes of main/delta S2 and star S0 contactors

Electrical and mechanical dual components

The kit includes both wiring components and mechanical interlocking structures.

Modular design of upper and lower sections

It is divided into upper and lower modules, which are installed according to the installation position.

Screw terminal wiring

All wiring terminals use standard screw terminals for easy installation and maintenance.

Suitable for small and medium-sized motor applications

The S2/S0 size combination is commonly used in the starting of small and medium power three-phase motors.

project	Specification
Product Type	Star-Delta (Y-Δ) Electrical and Mechanical Wiring Kit
Applicable size combinations	Main/Triangle S2, Star S0
Applicable series	SIRIUS 3RT2 contactor
Wiring method	Screw terminals
security agencies	Including mechanical chain

Recommend

3RA2934-2B

The Siemens 3RA2934-2B is a mechanical interlocking device from the SIRIUS 3RA29 series. It is suitable for contactors of S2 and S3 sizes and is installed between two side-by-side contactors. Its purely mechanical structure ensures that only one contactor can be engaged at any given time. It is commonly used in forward and reverse starters or dual-circuit switching applications to improve system operational safety.

3RA2933-2BB1

The 3RA2933-2BB1 is a star-delta starter wiring kit for the Siemens SIRIUS modular system. It is sized to fit S2 contactors, features a three-pole design with screw terminals, and can quickly assemble three S2 contactors into a star-delta reduced-voltage starter circuit, balancing electrical connection and mechanical fixation. It is an original product and comes with an authorized distributor warranty.

3RA2933-2AA1

The 3RA2933-2AA1 is a Siemens SIRIUS modular system accessory, a wiring kit specifically designed for forward and reverse (reversible) starting of S2 size contactors. It uses screw terminal wiring to help combine two S2 contactors into a complete forward and reverse control circuit, while completing electrical connection and mechanical fixation, facilitating quick panel assembly and maintenance.