Product Description

Siemens 3RA2923-2AA1 Wiring Kit for Screw-Terminal Reversing Starter – Size S0

The Siemens 3RA2923-2AA1 is a SIRIUS wiring kit for screw-terminal reversing starters, designed for Size S0 contactor assemblies. It combines the required electrical and mechanical connection components and includes a mechanical interlock for reversing starter applications. Siemens identifies it as a three-pole wiring kit with screw fixing and compatibility with AC and DC operated contactors.

The kit is intended for customers assembling or replacing compatible Siemens SIRIUS reversing starter arrangements in industrial electrical panels, motor starters and machinery.

Siemens SIRIUS 3RA2923-2AA1 Wiring Kit

The 3RA2923-2AA1 is part of the Siemens SIRIUS 3RA29 wiring, connecting and assembly accessory range. It is specifically designed for a reversing starter in Size S0 and is the screw-terminal version.

Unlike a simple connection wire set, this product combines electrical and mechanical assembly functions for a reversing contactor arrangement, including the mechanical interlocking arrangement specified by Siemens.

Typical applications include:

• Reversing motor starters

• Forward/reverse motor control panels

• Pumps requiring directional operation

• Conveyors

• Machine tools

• Material-handling equipment

• Production machinery

• Industrial control panels

• Motor starter assemblies

• Replacement and maintenance applications

Designed for Size S0 Reversing Starters

The exact 3RA2923-2AA1 is specified for Size S0 reversing starter applications. Siemens identifies the product size as S0 and lists it within the reversing-operation accessories for the SIRIUS modular system.

The complete contactor arrangement should use compatible S0 components so that the wiring kit and mechanical assembly fit correctly.

Screw-Terminal Configuration

The 3RA2923-2AA1 is specifically the screw-terminal version of the S0 reversing-starter wiring kit. Siemens lists the corresponding spring-loaded-terminal version separately as 3RA2923-2AA2.

This makes the 3RA2923-2AA1 suitable where the selected Siemens contactors use screw-terminal connections.

Electrical and Mechanical Reversing Starter Assembly

A reversing starter generally uses two contactors to control the direction of a three-phase motor.

The 3RA2923-2AA1 provides the connection and assembly components required for the compatible reversing arrangement while also incorporating the mechanical interlocking function specified for the kit.

This provides a more standardized alternative to separately fabricating the interconnection arrangement.

Mechanical Interlocking Included

An important feature of the 3RA2923-2AA1 is that it includes mechanical interlocking for the reversing starter. Siemens' exact product description states that the kit is “electrical and mechanical” and includes mechanical interlocking.

The mechanical interlock physically prevents the two interlocked contactors from being mechanically engaged at the same time.

For complete motor-control design, the appropriate electrical interlocking arrangement should also be implemented using the control contacts and circuit design applicable to the installation.

Three-Pole Wiring Kit

Siemens specifies the 3RA2923-2AA1 as a three-pole wiring kit.

This configuration is intended for compatible three-phase motor reversing applications where two contactors are arranged for forward and reverse operation.

Screw Fixing

The exact product uses screw fixing as its fastening method. Siemens lists this mounting detail in the official technical data.

This provides a conventional mechanical assembly method for industrial control-panel construction.

AC and DC Contactor Operation

Siemens specifies the product design for contactors with AC and DC actuating voltage.

This refers to the contactor operating-system compatibility of the assembly accessory and allows the wiring kit to be considered with compatible Siemens contactor configurations.

Modular SIRIUS Assembly

The 3RA2923-2AA1 is part of the Siemens SIRIUS modular system, which uses standardized accessories for motor starters and contactor assemblies. Siemens' IC10 catalog shows the kit alongside compatible S0 contactors and reversing-starter components.

This modular approach can simplify:

• Product selection

• Procurement

• Panel assembly

• Replacement

• Maintenance

Compact Accessory for Electrical Panels

The Siemens datasheet lists a net weight of approximately 0.092 kg and identifies the product as a Size S0, three-pole wiring kit.

Its compact accessory format makes it suitable for industrial control panels where standardized motor-starter assemblies are required.

Industrial Applications

Reversing Motor Starters

The 3RA2923-2AA1 is primarily used for forward/reverse contactor arrangements where two compatible contactors control motor direction.

Conveyors

It can be used in conveyor systems that require controlled forward and reverse motor operation.

Machine Tools

The kit is suitable for motor-control assemblies where directional operation is required.

Material Handling Equipment

It can be incorporated into compatible contactor assemblies for industrial handling machinery.

Production Machinery

The kit can support standardized Siemens reversing-starter arrangements in production equipment.

Electrical Control Panels

Panel builders can use the kit to assemble compatible S0 Siemens SIRIUS reversing starters.

Suitable for OEMs, Panel Builders and Electrical Dealers

The 3RA2923-2AA1 is suitable for OEM equipment manufacturers, electrical panel builders, industrial maintenance teams, industrial buyers and electrical product dealers.

For SB Smart, the product should be positioned around industrial electrical product supply, dealer/distributor procurement and replacement sourcing, without claiming automation integration or automation-service work.

SB Smart supplies Siemens industrial electrical accessories and motor-control components for procurement requirements across Faridabad, Delhi NCR, Gurgaon/Gurugram, Noida, Haryana, Punjab, Mumbai and other major Indian cities.

Key Features

• Siemens SIRIUS wiring kit

• Article number 3RA2923-2AA1

• Designed for screw-terminal contactors

• For reversing starter Size S0

• Electrical and mechanical assembly

• Mechanical interlock included

• Three-pole configuration

• Screw fixing

• Suitable for compatible AC and DC contactor operating systems

• Part of the Siemens SIRIUS modular system

• Suitable for compatible S0 reversing starter assemblies

• Approximate net weight 0.092 kg

Benefits

• Complete reversing-starter accessory: Combines wiring and mechanical interlocking functions.

• Size S0 compatibility: Designed specifically for compatible S0 arrangements.

• Mechanical interlock included: Helps prevent simultaneous mechanical engagement of the reversing contactors.

• Screw-terminal design: Suitable for screw-terminal contactors.

• Three-pole construction: Designed for three-phase motor applications.

• Standardized Siemens design: Helps simplify compatible motor-starter assembly.

• Compact construction: Suitable for industrial control panels.

• Useful for replacement: Suitable for maintenance and procurement requirements.

Why Choose Siemens 3RA2923-2AA1?

The Siemens 3RA2923-2AA1 is a dedicated wiring kit for screw-terminal reversing starters in Size S0, with both electrical and mechanical assembly functions and a mechanical interlock included.

It is a suitable accessory for customers looking to assemble, maintain or replace compatible Siemens SIRIUS reversing contactor arrangements.

For SB Smart, this product is best presented as a Siemens industrial electrical accessory for supply and procurement, suitable for panel builders, maintenance teams, industrial buyers and electrical dealers.

Delivery Across India

SB Smart supplies Siemens industrial electrical products and accessories across Faridabad, Gurgaon/Gurugram, Delhi NCR, Haryana, Noida, Punjab, Mumbai and other major cities across India.

Major delivery locations include:

• Faridabad

• Delhi

• Gurgaon/Gurugram

• Delhi NCR

• Noida

• Greater Noida

• Haryana

• Punjab

• Mumbai

• Pune

• Ahmedabad

• Bengaluru

• Hyderabad

• Chennai

• Kolkata

• Jaipur

• Chandigarh

• Lucknow

• Indore

• Surat

• Vadodara

• Nagpur

• Coimbatore

• And other major cities across India

Frequently Asked Questions

1. What is Siemens 3RA2923-2AA1?

It is a Siemens SIRIUS wiring kit for screw-terminal reversing starters, designed for Size S0 assemblies and including mechanical interlocking.

2. What starter size is supported?

The exact product is designed for Size S0 reversing starters.

3. Is the mechanical interlock included?

Yes. Siemens specifies the 3RA2923-2AA1 as an electrical and mechanical wiring kit including mechanical interlocking.

4. Is it for screw-terminal contactors?

Yes. The 3RA2923-2AA1 is the screw-terminal version. Siemens lists 3RA2923-2AA2 as the spring-loaded-terminal version.

5. How many poles does the kit have?

Siemens specifies a three-pole configuration.

6. What fastening method is used?

The product uses screw fixing.

7. Is it suitable for reversing starters?

Yes. It is specifically designed for reversing starter Size S0 applications.

8. Is it part of the Siemens SIRIUS modular system?

Yes. Siemens includes it within its SIRIUS modular system for reversing operation and motor-starter assemblies.

9. Who can purchase this product?

It is suitable for industrial buyers, panel builders, OEMs, maintenance teams and electrical dealers.

10. Where can I buy Siemens 3RA2923-2AA1 in India?

SB Smart supplies Siemens industrial electrical products and accessories in India, including SIRIUS wiring kits, contactor accessories and reversing-starter components for industrial procurement and replacement requirements.