Product Description

Siemens SIRIUS Motor Protection Circuit Breaker S2 28–36A Class 10 – 3RV2031-4PA10

Product Description

The Siemens 3RV2031-4PA10 is a high-performance Motor Protection Circuit Breaker (MPCB) from the trusted SIRIUS 3RV2 series, designed to protect three-phase motors against overload, short-circuit, and phase failure. With an adjustable overload current range of 28–36A and a 520A magnetic short-circuit release, this Class 10 motor protection circuit breaker provides fast and reliable tripping to safeguard motors from electrical faults and unexpected downtime. The compact S2 frame, 3-pole construction, screw terminal connections, and standard switching capacity make it an ideal solution for industrial motor control applications.

The Siemens 3RV2031-4PA10 is suitable for protecting three-phase induction motors up to 18.5 kW at 400V AC-3 and is widely used in Motor Control Centers (MCC), industrial control panels, pump control systems, compressors, conveyor systems, HVAC equipment, packaging machinery, water treatment plants, OEM equipment, 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-term reliability.

At SB Smart, we supply 100% genuine Siemens SIRIUS Motor Protection Circuit Breakers with competitive pricing, expert technical support, GST invoices, bulk order discounts, and fast delivery across India, helping industries source authentic Siemens automation products with confidence.

Key Features

• Genuine Siemens SIRIUS 3RV2 Motor Protection Circuit Breaker

• Model: 3RV2031-4PA10

• Frame Size: S2

• Adjustable Overload Setting: 28–36A

• Magnetic Short-Circuit Release: 520A

• 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

• Packaging Machinery

• OEM Electrical Panels

• Factory Automation

Benefits

• Protects motors from overload and short-circuit faults

• Reduces costly motor failures and 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 3RV2031-4PA10 used for?

The Siemens 3RV2031-4PA10 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 28A to 36A, allowing accurate motor protection.

Q3. What is the short-circuit release rating?

The breaker features a 520A 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. Does SB Smart supply genuine Siemens 3RV2031-4PA10?

Yes. SB Smart supplies 100% genuine Siemens industrial products with GST invoices, technical support, competitive pricing, and fast delivery across India.