Product Description

Siemens SIRIUS Electronic Overload Relay 6...25A Size S0 – 3RB3123-4QB0

Product Description

The Siemens SIRIUS Electronic Overload Relay – 3RB3123-4QB0 is an advanced motor protection device designed for reliable protection of motors against overload, phase failure, and operating faults. Part of the Siemens SIRIUS 3RB3 solid-state overload relay series, it provides accurate electronic motor protection for industrial applications.

The 3RB3123-4QB0 overload relay is suitable for a current setting range of 6...25A and is designed for Size S0 contactor mounting applications. It features Class 5...30 adjustable tripping characteristics, screw terminal connections, manual/automatic reset functionality, and integrated ground fault detection for enhanced motor protection.

This Siemens electronic overload relay is widely used in MCC panels, motor starter assemblies, industrial automation systems, pump control panels, OEM electrical panels, and machine-building applications where precise and reliable motor protection is required.

At SB Smart, we supply genuine Siemens SIRIUS overload relays, contactors, motor protection devices, and industrial automation products with competitive pricing, technical support, bulk order assistance, and fast PAN India delivery.

Key Features

• Genuine Siemens SIRIUS 3RB3 electronic overload relay

• Adjustable current setting range: 6...25A

• Size S0 contactor mounting design

• Class 5...30 adjustable trip characteristics

• Screw terminal connection for main and auxiliary circuits

• Manual and automatic reset function

• Integrated ground fault detection

• Solid-state electronic motor protection

• Suitable for Siemens SIRIUS contactor combinations

• Reliable Siemens industrial quality

Applications

• Motor Control Centers (MCC)

• Industrial Control Panels

• Motor Starter Assemblies

• Pump Control Panels

• Conveyor Systems

• HVAC Motor Applications

• Factory Automation Systems

• OEM Machine Panels

• Industrial Equipment Protection

• Process Automation Applications

Benefits

• Provides accurate motor overload protection

• Protects motors from excessive current conditions

• Helps prevent motor damage and downtime

• Improves system reliability

• Enables precise current adjustment

• Supports easy integration with contactors

• Reduces maintenance requirements

• Enhances industrial safety

• Suitable for continuous motor operation

Why Buy Siemens 3RB3123-4QB0 from SB Smart?

• 100% Genuine Siemens Products

• Competitive Siemens Overload Relay Price in India

• Expert Technical Support

• Bulk Order Assistance

• Fast PAN India Delivery

• Secure Packaging

• Trusted Industrial Electrical Supplier

• GST Invoice Available

• Reliable After-Sales Support

Frequently Asked Questions (FAQs)

Q1. What is Siemens 3RB3123-4QB0 used for?

The Siemens 3RB3123-4QB0 is an electronic overload relay used for protecting motors against overload conditions and faults in industrial motor control applications.

Q2. What is the current range of this overload relay?

This Siemens SIRIUS overload relay has an adjustable current setting range of 6...25A.

Q3. Which contactor size is compatible with 3RB3123-4QB0?

The relay is designed for Size S0 contactor mounting applications and can be combined with compatible Siemens SIRIUS contactors.

Q4. What type of protection does this relay provide?

It provides electronic overload protection with adjustable tripping characteristics and integrated ground fault detection.

Q5. Does SB Smart supply genuine Siemens 3RB3123-4QB0?

Yes. SB Smart supplies genuine Siemens SIRIUS motor protection products with competitive pricing and industrial support.