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Siemens 3RA2423-8XF32-1BB4 Star-Delta Contactor Assembly

Siemens 3RA2423-8XF32-1BB4 3-pole Star-Delta Contactor Assembly

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ManufacturerSiemens

Part number3RA2423-8XF32-1BB4

Type Star-Delta Contactor Assembly

AC-3 Rating 11 kW / 400 V

Poles 3

Coil Voltage 24 V DC

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Star-Delta Starting Configuration Integrated Electrical and Mechanical Interlocks 3 NO + 3 NC Auxiliary Contacts Screw Terminal Connections Size S0 Contactor 24 V DC Coil

Product description

The Siemens 3RA2423-8XF32-1BB4 is a 3-pole contactor assembly specifically designed for star-delta (wye-delta) motor starting applications. Rated for AC-3 duty, it supports 11 kW at 400V. This Size S0 assembly operates with a 24 V DC coil, features screw terminals, and includes integrated electrical and mechanical interlocks. It comes with 3 normally open (NO) and 3 normally closed (NC) auxiliary contacts.

This star-delta contactor assembly is crucial for reducing inrush current during motor startup, making it ideal for applications like large pump systems, fans, and compressors where smooth acceleration is required. It is commonly found in industrial manufacturing, HVAC, and water treatment facilities.

Stanlo Automation, a proud veteran-owned business, specializes in providing high-quality surplus industrial automation parts like the Siemens 3RA2423-8XF32-1BB4. We help you source essential components efficiently, ensuring your operations run smoothly and cost-effectively.

Technical specifications

Type	Star-Delta Contactor Assembly
AC-3 Rating	11 kW / 400 V
Poles	3
Coil Voltage	24 V DC
Terminals	Screw
Interlock	Electrical and Mechanical (Integrated)
Auxiliary Contacts	3 NO + 3 NC
Size	S0

Common applications

Star-Delta Motor Starting

Pump Control

Fan Control

Compressor Control

Industrial Machinery

Material Handling

Compatible systems

Motor control panels PLC controlled systems Industrial automation systems

Also known as

Siemens Sirius Star-Delta Starter 3RA2423 Contactor Siemens Wye-Delta Starter Assembly

Replaces / compatible with

This assembly provides a complete solution for star-delta starting, often replacing the need for individual contactors and external timers or interlocks.

Technical note

Expert tip

Proper sequencing and timing with a star-delta starter timer are critical for correct operation and motor protection.

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Frequently asked questions

What is the power rating for the Siemens 3RA2423-8XF32-1BB4 star-delta starter?

The Siemens 3RA2423-8XF32-1BB4 star-delta contactor assembly is rated for AC-3 duty at 11 kW (15 HP) for 400V applications.