Product Description

Siemens SIRIUS Motor Protection Circuit Breaker S2 62–73A Class 10 – 3RV2031-4KA10

Product Description

The Siemens 3RV2031-4KA10 is a premium Motor Protection Circuit Breaker (MPCB) from the trusted SIRIUS 3RV2 series, engineered to protect three-phase motors against overload, short-circuit, and phase failure. With an adjustable overload current range of 62–73A and a 949A magnetic short-circuit release, this Class 10 motor protection circuit breaker provides fast and reliable tripping to safeguard motors, reduce downtime, and improve equipment reliability. It features a compact S2 frame, 3-pole design, screw terminal connections, and standard switching capacity, making it an ideal choice for industrial motor starter applications.

The Siemens 3RV2031-4KA10 is suitable for protecting three-phase induction motors up to 37 kW at 400V AC-3 and is widely used in Motor Control Centers (MCC), industrial control panels, pump control systems, compressors, conveyor systems, HVAC plants, water treatment facilities, OEM machinery, manufacturing units, and factory automation. It integrates seamlessly with Siemens SIRIUS contactors to build compact DOL (Direct-On-Line) and Star-Delta motor starters, ensuring dependable motor protection and long service life.

At SB Smart, Faridabad, we supply 100% genuine Siemens SIRIUS Motor Protection Circuit Breakers, contactors, overload relays, soft starters, and industrial automation products at competitive prices. We offer GST invoices, expert technical support, bulk order discounts, secure packaging, and fast delivery across Faridabad, Delhi NCR, and all major cities in India, making us a trusted supplier for industries, panel builders, OEMs, and contractors.

Key Features

• Genuine Siemens SIRIUS 3RV2 Motor Protection Circuit Breaker

• Model: 3RV2031-4KA10

• Frame Size: S2

• Adjustable Overload Setting: 62–73A

• Magnetic Short-Circuit Release: 949A

• Class 10 Thermal Trip Characteristic

• 3-Pole Configuration

• Screw Terminal Connections

• Standard Switching Capacity

• Phase Failure Protection

• Compatible with Siemens SIRIUS Contactors

• Ideal for DOL and Star-Delta Motor Starters

• Compact, Rugged Industrial Design

Applications

• Motor Control Centers (MCC)

• Industrial Automation Panels

• DOL Motor Starters

• Star-Delta Motor Starters

• Pump Control Panels

• Compressors

• Conveyor Systems

• HVAC Systems

• Water Treatment Plants

• Manufacturing Industries

• OEM Electrical Panels

• Factory Automation

Benefits

• Reliable overload and short-circuit motor protection

• Reduces motor damage and unexpected downtime

• Improves electrical system safety

• Compact design saves panel space

• Easy installation with screw terminals

• Long mechanical and electrical service life

• Reliable performance in demanding industrial environments

• Low maintenance and high operational efficiency

Frequently Asked Questions (FAQs)

Q1. What is Siemens 3RV2031-4KA10 used for?

The Siemens 3RV2031-4KA10 is a Motor Protection Circuit Breaker (MPCB) used to protect three-phase motors from overload, phase failure, and short-circuit faults.

Q2. What is the overload setting range?

It has an adjustable thermal overload range of 62A to 73A, providing accurate protection for industrial motors.

Q3. What is the short-circuit release rating?

The breaker features a 949A magnetic short-circuit release for rapid fault protection.

Q4. Is it suitable for DOL and Star-Delta starters?

Yes. It is fully compatible with Siemens SIRIUS contactors and is widely used in DOL and Star-Delta motor starter panels.

Q5. Why buy Siemens 3RV2031-4KA10 from SB Smart Faridabad?

SB Smart, Faridabad supplies 100% genuine Siemens industrial products with competitive pricing, GST invoices, technical support, bulk order assistance, and fast delivery across Faridabad, Delhi NCR, and all over India.