The Siemens SIRIUS 3RV2131-4JA10 Motor Protection Circuit Breaker (MPCB) is a high-performance industrial protection device designed for motor overload protection, short-circuit protection, phase failure protection, and safe electrical isolation. 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 protection into a single compact unit, making it ideal for motor control centers (MCC), industrial automation systems, OEM machinery, manufacturing plants, process industries, and electrical control panels.
The 3RV2131-4JA10 features an adjustable thermal overload current range of 54–65A, 845A magnetic short-circuit (N) release, 3-pole construction, screw terminal connections, and standard switching capacity. It supports operating voltages up to 690V AC, delivering dependable protection against overload, locked rotor conditions, phase failure, and short-circuit faults while reducing downtime and extending motor life. It is fully compatible with Siemens SIRIUS contactors for building compact and efficient motor starter combinations.
Engineered for continuous industrial duty, the Siemens 3RV2131-4JA10 MPCB is widely used in pump control panels, compressors, conveyors, HVAC systems, water treatment plants, packaging machinery, textile industries, mining operations, cement plants, steel plants, food processing facilities, and factory automation systems. Its compact design, high mechanical endurance, and reliable switching performance make it an excellent solution for protecting medium and high-power three-phase motors in demanding industrial environments.
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 billing, bulk order assistance, and fast PAN India delivery.
Genuine Siemens SIRIUS 3RV2 Motor Protection Circuit Breaker
Model: 3RV2131-4JA10
Frame Size: S2
Adjustable Thermal Overload Range: 54–65A
Magnetic Short-Circuit Release: 845A
Class 10 Thermal Overload Protection
Standard Switching Capacity
3-Pole Configuration
Screw Terminal Connections
Rated Operating Voltage: 20–690V AC
Integrated Overload, Phase Failure & Short-Circuit Protection
High Mechanical & Electrical Endurance
Compact Industrial Design
Compatible with Siemens SIRIUS Contactors and Starter Combinations
Motor Control Centers (MCC)
Industrial Automation Panels
Motor Starter Assemblies
Pump Control Panels
Compressors
Conveyor Systems
HVAC Systems
Water Treatment Plants
Mining Equipment
Cement Plants
Steel Industries
Packaging Machinery
Food Processing Plants
OEM Electrical Panels
Protects motors from overload and short-circuit faults
Integrated thermal overload relay reduces panel components
Provides phase failure protection for enhanced motor safety
Minimizes equipment downtime and maintenance costs
Compact design saves valuable panel space
Easy installation with screw terminal wiring
Reliable operation in harsh industrial environments
Long mechanical and electrical service life
Ideal for continuous-duty industrial motors
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 3RV2131-4JA10 is a Motor Protection Circuit Breaker (MPCB) designed to protect three-phase motors from overload, phase failure, and short-circuit faults while providing safe electrical isolation.
The breaker provides an adjustable thermal overload current range of 54A to 65A.
It features an 845A magnetic short-circuit (N) release for rapid fault interruption and reliable motor protection.
Yes. The 3RV2131-4JA10 is specifically designed for starter combinations and works seamlessly with compatible Siemens SIRIUS contactors.
This circuit breaker uses screw terminal connections, ensuring secure, vibration-resistant, and reliable wiring in industrial control panels.
Yes. SB Smart supplies 100% genuine Siemens SIRIUS Motor Protection Circuit Breakers with competitive pricing, expert technical support, GST invoices, and fast delivery across India.
| Parameter | Specification |
|---|---|
| Brand | Siemens |
| Series | SIRIUS 3RV2 |
| Model Number | 3RV2131-4JA10 |
| 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) | 54.00–65.00 A |
| Short-Circuit Release (N-Release) | 845 A |
| Number of Poles | 3 |
| Rated Operational Voltage | 20–690 V AC |
| Rated Operational Current | 65 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% |
| Approximate Weight | 1.24 kg |
| Mounting | DIN Rail / Panel Mounting |
| Application | Motor Overload and Short-Circuit Protection |
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