The Siemens SIRIUS 3RV2131-4VA10 Motor Protection Circuit Breaker (MPCB) is a premium industrial protection device engineered for motor protection, overload protection, short-circuit protection, and safe motor isolation in demanding electrical applications. As part of the globally trusted Siemens SIRIUS 3RV2 series, this Size S2 motor protection circuit breaker combines a thermal overload relay and magnetic short-circuit release in one compact unit, making it an ideal solution for modern motor control centers (MCC), industrial automation systems, OEM machinery, process industries, and electrical control panels.
The 3RV2131-4VA10 features an adjustable thermal overload current range of 35–45A, 650A magnetic short-circuit (N) release, Class 10 tripping characteristics, 3-pole configuration, and screw terminal connections. Designed for motors operating up to 690V AC, it provides fast and reliable protection against overload, phase failure, and short-circuit faults while minimizing downtime and improving equipment reliability.
Engineered for continuous industrial operation, this Siemens Motor Protection Circuit Breaker (MPCB) integrates seamlessly with Siemens SIRIUS contactors and starter combinations, creating compact and efficient motor starter assemblies. It is widely used in pump control panels, compressors, conveyor systems, HVAC equipment, water treatment plants, textile machinery, packaging machines, food processing plants, mining applications, manufacturing facilities, and factory automation systems where dependable motor protection is critical.
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: 3RV2131-4VA10
Frame Size: S2
Adjustable Thermal Overload Range: 35–45A
Magnetic (N) Short-Circuit Release: 650A
Class 10 Motor Protection
Standard Switching Capacity
3-Pole Configuration
Screw Terminal Connections
Rated Operating Voltage: 20–690V AC
Integrated Thermal & Magnetic Protection
Phase Failure Protection
Compact Space-Saving Design
High Mechanical & Electrical Endurance
Ideal for Motor Starter Combinations and Industrial Automation
Motor Control Centers (MCC)
Industrial Automation Panels
Motor Starter Combinations
Pump Control Panels
Compressors
Conveyor Systems
HVAC Systems
Water Treatment Plants
Textile Machinery
Packaging Machines
Manufacturing Industries
Food Processing Plants
Mining Equipment
OEM Electrical Panels
Protects motors against overload and short-circuit faults
Integrated thermal overload relay function
Reduces motor downtime and maintenance costs
Provides safe isolation during servicing
Compact design saves valuable panel space
Improves equipment reliability and operational safety
Easy installation with screw terminal wiring
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 Service
The Siemens 3RV2131-4VA10 is a Motor Protection Circuit Breaker (MPCB) used to protect three-phase motors from overload, phase failure, and short-circuit faults in industrial applications.
The breaker offers an adjustable thermal overload setting from 35A to 45A.
It features a 650A magnetic (N) release for fast short-circuit protection.
Class 10 protection trips the breaker within the specified time during overload conditions, helping protect motors from overheating and damage.
It is suitable for motor starter panels, MCCs, pumps, compressors, conveyors, HVAC systems, manufacturing plants, OEM machinery, and industrial automation applications.
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 | 3RV2131-4VA10 |
| 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) | 35.00–45.00 A |
| Short-Circuit Release (N-Release) | 650 A |
| Number of Poles | 3 |
| Rated Operational Voltage | 20–690 V AC |
| Rated Operational Current | 45 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 |
| Mechanical Endurance | 20,000 Operating Cycles |
| Electrical Endurance | 20,000 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 | DIN Rail / Panel Mounting |
| Application | Motor Overload and Short-Circuit Protection |
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