The Siemens SIRIUS 3RV2041-4KA10 Motor Protection Circuit Breaker (MPCB) is a premium industrial motor protection device designed to provide overload protection, short-circuit protection, phase failure protection, and safe electrical isolation for three-phase motors. As part of the highly reliable Siemens SIRIUS 3RV2 series, this Size S3 Motor Protection Circuit Breaker combines a Class 10 thermal overload release with a 975A magnetic short-circuit release, delivering dependable protection for medium and high-power motors operating in demanding industrial environments. It is widely used in Motor Control Centers (MCC), industrial automation systems, OEM machinery, process industries, electrical control panels, manufacturing plants, and heavy-duty motor starter applications.
The 3RV2041-4KA10 features an adjustable thermal overload current range of 57–75A, 975A magnetic short-circuit release, 3-pole configuration, screw terminal connections, and standard switching capacity. Designed for operation up to 690V AC, it provides reliable protection against overload, locked rotor, phase loss, and short-circuit faults while ensuring long service life and high operational reliability. It integrates seamlessly with compatible Siemens SIRIUS S3 contactors, making it an ideal solution for Direct-On-Line (DOL) starters, Star-Delta starters, and complete motor starter assemblies.
Engineered for continuous operation in harsh industrial conditions, the Siemens 3RV2041-4KA10 is suitable for large pumps, compressors, conveyor systems, HVAC equipment, mining machinery, cement plants, steel industries, water treatment facilities, packaging machines, food processing plants, and factory automation systems. Its rugged construction, compact design, and Siemens engineering help reduce maintenance costs, improve equipment uptime, and enhance overall motor protection.
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: 3RV2041-4KA10
Frame Size: S3
Adjustable Thermal Overload Range: 57–75A
Magnetic Short-Circuit Release: 975A
Class 10 Thermal Overload Protection
Standard Switching Capacity
3-Pole Configuration
Screw Terminal Connections
Rated Operating Voltage: 20–690V AC
Rated Insulation Voltage: 1000V AC
Phase Failure Protection
Compatible with Siemens SIRIUS S3 Contactors
High Mechanical & Electrical Endurance
Suitable for DOL and Star-Delta Motor Starter Applications
Compact and Rugged Industrial Design
Motor Control Centers (MCC)
Industrial Automation Systems
DOL Motor Starters
Star-Delta Starter Panels
Pump Control Panels
Compressors
Conveyor Systems
HVAC Systems
Mining Equipment
Cement Plants
Steel Industries
Water Treatment Plants
Process Industries
OEM Electrical Panels
Factory Automation
Protects motors against overload and short-circuit faults
Integrated thermal overload protection eliminates separate overload relays
Phase failure protection enhances motor safety
Fast 975A magnetic trip ensures reliable fault clearance
Compact design reduces control panel space
Easy installation with secure screw terminals
Minimizes downtime and maintenance costs
Long mechanical and electrical service life
Improves overall motor system efficiency and reliability
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 3RV2041-4KA10 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 offers an adjustable thermal overload current setting from 57A to 75A, making it suitable for medium and high-power industrial motors.
It features a 975A magnetic short-circuit release, ensuring rapid fault interruption and dependable protection against electrical faults.
Yes. The 3RV2041-4KA10 is compatible with Siemens SIRIUS S3 contactors, making it ideal for DOL starters, Star-Delta starters, and motor starter combinations.
The breaker is equipped with screw terminal connections, providing secure, vibration-resistant, and reliable wiring for industrial electrical 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 | 3RV2041-4KA10 |
| Product Type | Motor Protection Circuit Breaker (MPCB) |
| Frame Size | S3 |
| Thermal Overload Setting (A-Release) | 57.00–75.00 A |
| Magnetic Trip (N-Release) | 975 A |
| Tripping Class | Class 10 |
| Number of Poles | 3 |
| Rated Operational Voltage | 20–690 V AC |
| Rated Operational Current | 75 A |
| Rated Insulation Voltage | 1000 V |
| Rated Impulse Withstand Voltage | 8 kV |
| Operating Frequency | 50/60 Hz |
| Connection Type | Screw Terminal |
| Switching Capacity | Standard |
| Degree of Protection | IP20 |
| Mechanical Endurance | 25,000 Operating Cycles |
| Electrical Endurance | 25,000 Operating Cycles |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -50°C to +80°C |
| Maximum Installation Altitude | 2,000 m |
| Relative Humidity | 10–95% |
| Approximate Weight | 2.24 kg |
| Mounting | Panel Mount |
| Application | Motor Overload and Short-Circuit Protection |
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