The Siemens SIRIUS 3RV2131-4DA10 Motor Protection Circuit Breaker (MPCB) is a premium industrial protection device engineered for motor overload protection, short-circuit protection, phase failure protection, and safe electrical isolation. As part of the globally trusted Siemens SIRIUS 3RV2 series, this Size S2 Motor Protection Circuit Breaker integrates a Class 10 thermal overload relay and magnetic short-circuit release into a single compact unit, making it an ideal solution for motor control centers (MCC), industrial automation systems, OEM machinery, manufacturing plants, process industries, and electrical control panels. It is designed to protect three-phase motors while improving system reliability, minimizing downtime, and extending equipment life.
The 3RV2131-4DA10 features an adjustable thermal overload current range of 18–25A, a 325A magnetic short-circuit release, 3-pole configuration, screw terminal connections, and standard switching capacity. It supports operating voltages up to 690V AC and provides dependable protection against overload, locked rotor conditions, phase failure, and short-circuit faults. Designed for seamless integration with Siemens SIRIUS contactors, it enables compact and efficient motor starter combinations for modern industrial control panels.
This Siemens Motor Protection Circuit Breaker (MPCB) is widely used in pump control panels, compressors, conveyors, HVAC systems, water treatment plants, packaging machinery, textile industries, food processing plants, mining equipment, cement plants, machine tools, and factory automation systems. Its compact design, high mechanical durability, and excellent electrical performance make it one of the preferred motor protection solutions for demanding industrial applications.
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 at competitive prices with expert technical support, GST billing, bulk order assistance, and fast PAN India delivery.
Genuine Siemens SIRIUS 3RV2 Motor Protection Circuit Breaker
Model: 3RV2131-4DA10
Frame Size: S2
Adjustable Thermal Overload Range: 18–25A
Magnetic Short-Circuit Release: 325A
Class 10 Thermal Overload Protection
Standard Switching Capacity
3-Pole Configuration
Screw Terminal Connections
Rated Operating Voltage: 20–690V AC
Integrated Overload, Short-Circuit & Phase Failure Protection
High Mechanical & Electrical Endurance
Compact Space-Saving Industrial Design
Compatible with Siemens SIRIUS Contactors and Motor Starter Combinations
Motor Control Centers (MCC)
Industrial Automation Panels
Motor Starter Assemblies
Pump Control Panels
Compressors
Conveyor Systems
HVAC Systems
Water Treatment Plants
Packaging Machinery
Textile Machinery
Food Processing Plants
Manufacturing Industries
Mining Equipment
OEM Electrical Panels
Protects motors against overload and short-circuit faults
Integrated thermal overload relay reduces panel components
Provides phase failure protection for improved motor safety
Minimizes equipment downtime and maintenance costs
Compact design saves valuable control panel space
Easy installation with screw terminal connections
Improves system reliability and operational efficiency
Long mechanical and electrical service life
Ideal for continuous industrial operation
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
The Siemens 3RV2131-4DA10 is a Motor Protection Circuit Breaker (MPCB) designed to protect three-phase motors against overload, short-circuit, and phase failure while providing safe electrical isolation in industrial applications.
The breaker provides an adjustable thermal overload current range of 18A to 25A.
It features a 325A magnetic short-circuit release for rapid fault interruption and dependable motor protection.
Yes. The 3RV2131-4DA10 is specifically designed for starter combinations and integrates seamlessly with compatible Siemens SIRIUS contactors.
The breaker is equipped with screw terminal connections, providing secure, reliable, and vibration-resistant wiring for industrial control panels.
Yes. SB Smart supplies 100% genuine Siemens SIRIUS Motor Protection Circuit Breakers with competitive pricing, technical support, GST invoices, and fast delivery across India.
| Parameter | Specification |
|---|---|
| Brand | Siemens |
| Series | SIRIUS 3RV2 |
| Model Number | 3RV2131-4DA10 |
| Product Type | Motor Protection Circuit Breaker |
| Function | Motor Protection with Overload Relay Function |
| Frame Size | S2 |
| Tripping Class | Class 10 |
| Thermal Overload Release (A-Release) | 18.00–25.00 A |
| Short-Circuit Release (N-Release) | 325 A |
| Number of Poles | 3 |
| Rated Operational Voltage | 20–690 V AC |
| Rated Operational Current | 25 A |
| Rated Insulation Voltage | 690 V |
| Rated Impulse Withstand Voltage | 6 kV |
| Frequency | 50/60 Hz |
| Connection Type | Screw Terminal |
| Switching Capacity | Standard |
| Degree of Protection | IP20 (Front) |
| Mechanical Endurance | 50,000 Operating Cycles |
| Electrical Endurance | 50,000 Operating Cycles |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -50°C to +80°C |
| Maximum Installation Altitude | 2000 m |
| Relative Humidity | 10–95% |
| Mounting | Panel / DIN Rail Mounting |
| Application | Motor Overload and Short-Circuit Protection |
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