Product Description

Siemens SIRIUS Motor Protection Circuit Breaker S2 35–45A Class 10 – 3RV2131-4RA10

Product Description

The Siemens SIRIUS 3RV2131-4RA10 Motor Protection Circuit Breaker (MPCB) is a high-performance protection device designed for industrial motor protection, overload protection, short-circuit protection, and safe electrical isolation. As part of the trusted Siemens SIRIUS 3RV2 series, this Size S2 Motor Protection Circuit Breaker combines a Class 10 thermal overload relay and magnetic short-circuit protection in a compact unit, making it an ideal choice for motor control centers (MCC), industrial automation systems, OEM machines, process industries, and electrical control panels.

The 3RV2131-4RA10 features an adjustable thermal overload setting of 35–45A, a 650A magnetic short-circuit release, 3-pole construction, screw terminal connections, and standard switching capacity. Designed for reliable motor starting and protection, it safeguards motors against overload, phase failure, and short-circuit conditions while reducing downtime and extending motor life. It integrates seamlessly with Siemens SIRIUS contactors to create compact and efficient motor starter combinations.

Built for demanding industrial environments, the Siemens 3RV2131-4RA10 MPCB supports operating voltages up to 690V AC, offers excellent mechanical and electrical endurance, and complies with international industrial standards. It is widely used in pump control panels, compressors, conveyor systems, HVAC plants, water treatment facilities, packaging machinery, textile industries, mining equipment, food processing plants, and factory automation systems, ensuring dependable motor protection and operational safety.

At SB Smart, we supply 100% genuine Siemens SIRIUS Motor Protection Circuit Breakers (MPCB), contactors, overload relays, soft starters, MCCBs, MCBs, and industrial automation products with competitive pricing, expert technical support, GST invoices, bulk order assistance, and fast PAN India delivery.

Key Features

• Genuine Siemens SIRIUS 3RV2 Motor Protection Circuit Breaker

• Model: 3RV2131-4RA10

• Frame Size: S2

• Adjustable Thermal Overload Range: 35–45A

• Magnetic Short-Circuit Release: 650A

• Class 10 Thermal Overload Protection

• Standard Switching Capacity

• 3-Pole Configuration

• Screw Terminal Connections

• Rated Operating Voltage up to 690V AC

• Integrated Overload and Short-Circuit Protection

• Phase Failure Protection

• Compact Industrial Design

• High Mechanical and Electrical Durability

• Compatible with Siemens SIRIUS Motor Starters and Contactors

Applications

• Motor Control Centers (MCC)

• Industrial Automation Panels

• Motor Starter Assemblies

• Pump Control Panels

• Compressors

• Conveyor Systems

• HVAC Systems

• Water Treatment Plants

• Textile Machinery

• Packaging Machines

• Food Processing Equipment

• Manufacturing Industries

• Mining Equipment

• OEM Electrical Panels

Benefits

• Protects motors from overload and short-circuit faults

• Integrated thermal overload relay eliminates additional components

• Improves motor reliability and operational safety

• Reduces equipment downtime and maintenance costs

• Compact design saves valuable panel space

• Easy installation with screw terminals

• Long mechanical and electrical service life

• Suitable for continuous industrial applications

Why Buy Siemens 3RV2131-4RA10 from SB Smart?

• 100% Genuine Siemens Products

• Best Siemens MPCB Price in India

• Expert Technical Support

• Bulk Order Assistance

• Fast PAN India Delivery

• Secure Packaging

• GST Invoice Available

• Trusted Industrial Electrical Supplier

• Reliable After-Sales Support

Frequently Asked Questions (FAQs)

Q1. What is Siemens 3RV2131-4RA10 used for?

The Siemens 3RV2131-4RA10 is a Motor Protection Circuit Breaker (MPCB) designed to protect three-phase motors against overload, short-circuit, and phase failure while providing safe isolation during maintenance.

Q2. What is the adjustable overload current range?

The breaker offers an adjustable thermal overload current range of 35A to 45A.

Q3. What is the short-circuit release rating?

The 3RV2131-4RA10 provides a 650A magnetic short-circuit release for rapid fault protection.

Q4. Is this breaker suitable for starter combinations?

Yes. It is specifically designed for starter combinations and works with compatible Siemens SIRIUS contactors to build compact motor starter assemblies.

Q5. What type of terminal connection does it use?

It is equipped with screw terminal connections for secure, reliable, and easy wiring in industrial control panels.

Q6. Does SB Smart supply genuine Siemens 3RV2131-4RA10?

Yes. SB Smart supplies 100% genuine Siemens SIRIUS Motor Protection Circuit Breakers with competitive pricing, expert technical support, GST billing, and fast delivery across India.