3RA2933-2C

Description

Overview

The Siemens 3RA2933-2C is an essential pre-wired wiring kit designed for the efficient and reliable assembly of a star-delta (wye-delta) starter using the SIRIUS modular system. This kit simplifies the complex electrical and mechanical connection between the main, star, and delta contactors, specifically supporting the combination of three contactors in sizes S2 (2x) and S0 (1x).

Key Benefit

• Significantly Reduces Wiring Time: The pre-assembled components dramatically cut down on manual wiring, leading to faster installation and commissioning.
• Enhanced Reliability and Error Prevention: Factory-prepared connections minimize the risk of wiring errors, ensuring a reliable and safe motor control circuit.
• Compact and Space-Saving: The optimized design ensures the final star-delta assembly remains compact, saving valuable space within the control cabinet.
• Genuine Siemens Quality: Guarantees perfect compatibility and performance with SIRIUS S0 and S2 contactors.

Function

• Electrical Interconnection: Provides the necessary wiring links for the control and power circuits between the three contactors (Line, Delta, Star).
• Mechanical Interconnection: Offers the mounting/locking components required to physically link the contactors together for a secure, combined unit.
• Standardized Assembly: Ensures the resulting star-delta starter conforms to Siemens’ high standards for motor starting applications.

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