Fuji BM3RSB-013 9-13A Overload Protection Circuit Breaker: Comprehensive Guide for Industrial Automation
Fuji BM3RSB-013 9-13A Overload Protection Circuit Breaker
Professional-grade motor protection solution for industrial automation systems
Product Overview
The Fuji BM3RSB-013 9-13A is a high-performance overload protection circuit breaker designed specifically for motor protection applications in industrial automation environments. As part of Fuji Electric's renowned DUO series, this device combines thermal-magnetic protection with advanced safety features to ensure reliable operation of motors ranging from 9-13A current ratings.
This circuit breaker is particularly valuable for PLC-based automation systems where motor protection is critical for maintaining system integrity and preventing costly downtime. The adjustable thermal-magnetic trip mechanism provides precise protection against overloads and short circuits, making it an essential component in modern industrial control panels.
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Key Features and Benefits
Advanced Protection Capabilities
- Adjustable Thermal-Magnetic Trip: Precise current setting from 9-13A range for optimal motor protection
- High Breaking Capacity: 100 kA at 240V AC ensuring reliable short-circuit protection
- Motor-Specific Design: Optimized for 3-phase motor applications with appropriate thermal characteristics
- Visual Status Indicators: Clear ON/OFF and trip state indicators for instant system status recognition
Industrial-Grade Construction
- Compact Design: 45mm width frame saves valuable panel space
- Rotary Handle Operation: Easy manual operation with clear position indication
- Robust Enclosure: Durable construction suitable for harsh industrial environments
- Accessory Compatibility: Supports auxiliary contact blocks, shunt trip devices, and undervoltage trip devices
PLC Integration Advantages
- Remote Monitoring Capability: Compatible with auxiliary contacts for PLC feedback
- System Coordination: Designed for seamless integration with PLC-controlled motor circuits
- Diagnostic Features: Trip indication can be monitored through PLC input modules
- Standard Compliance: Meets industrial automation standards for reliable PLC system integration
Technical Specifications
| Parameter | Specification | Details |
|---|---|---|
| Model Number | BM3RSB-013 | Fuji DUO Series Manual Motor Starter |
| Current Rating | 9-13A | Adjustable thermal-magnetic trip range |
| Frame Size | 45mm width | Compact design for space-constrained panels |
| Rated Insulation Voltage | 690V | High voltage insulation capability |
| Breaking Capacity | 100 kA @ 240V AC | 50 kA @ 480V AC |
| Motor Capacity (3-phase) | Up to 5.5 kW @ 400V | Depends on voltage and application |
| Operation Handle | Rotary | Manual operation with clear position indication |
| Dimensions (W×H×D) | 45 × 90 × 66-79 mm | Varies with accessory configuration |
| Weight | 350-370g | Lightweight yet robust construction |
| Standards Compliance | IEC 60947-1, 60947-2, 60947-4-1 | UL 508, CSA C22.2 No.14, TÜV, CE |
Certifications and Standards
The Fuji BM3RSB-013 meets international standards including UL 508 (file E163944), CSA C22.2 No.14, and IEC 60947 series standards for circuit-breakers and motor starters. This comprehensive certification ensures global acceptance and reliability in industrial applications.
Applications in PLC Industrial Automation
The BM3RSB-013 9-13A circuit breaker finds extensive applications in various industrial automation scenarios:
Motor Control Centers (MCC)
Integrated into MCC panels for individual motor protection, providing both overload and short-circuit protection for motors in the 9-13A range. The compact design allows for high-density installations in control panels.
Conveyor Systems
Protects conveyor drive motors from overload conditions that can occur during jam situations or excessive loading. The adjustable trip setting allows fine-tuning for specific conveyor applications.
Pump and Fan Control
Essential for protecting pump and fan motors in HVAC systems, water treatment plants, and industrial process applications where continuous operation is critical.
Machine Tool Applications
Provides reliable protection for spindle motors, feed motors, and auxiliary motors in CNC machines and other industrial equipment.
Get Your Fuji BM3RSB-013 NowInstallation and Wiring Guidelines
Proper installation is crucial for optimal performance and safety:
Mounting Requirements
- Mount on DIN rail (35mm) in vertical position
- Maintain minimum clearance of 50mm above and below the unit
- Ensure adequate ventilation around the circuit breaker
- Use appropriate torque for terminal connections (as specified in manual)
Wiring Considerations
- Use copper conductors only, rated for appropriate temperature
- Follow local electrical codes and regulations
- Implement proper grounding according to NEC/CE requirements
- Consider ambient temperature derating if installed in high-temperature environments
Frequently Asked Questions (FAQ)
The BM3RSB-013 specifically has an adjustable current range of 9-13A. Other models in the BM3 series have different current ratings to accommodate various motor sizes and applications. The "013" designation indicates this specific current range within the product family.
While primarily designed for 3-phase motor applications, the BM3RSB-013 can be used for single-phase motors within its current rating. However, consult the technical documentation and ensure proper derating factors are applied for single-phase operation.
The thermal trip setting is adjustable within the 9-13A range using the adjustment dial on the front of the unit. Always set the trip current to match the motor's full-load current rating, typically with a small safety margin as specified in motor documentation.
Fuji offers various accessories including auxiliary contact blocks (for PLC feedback), shunt trip devices (for remote tripping), undervoltage trip devices, and external operating handles. These accessories enhance functionality and integration capabilities.
Yes, the Fuji BM3RSB-013 is cULus listed for group installation per NEC 430-53(c) when used with appropriate short-circuit contact blocks (BZ0TKUAB) and line side terminal covers (BZ0TCRE) as specified in Fuji's documentation.
You can purchase authentic Fuji BM3RSB-013 overload protection circuit breakers from authorized distributors like Koeed Industrial Automation, which offers genuine products with proper documentation and support.
Maintenance and Troubleshooting
Regular Maintenance
- Periodically check terminal connections for tightness
- Inspect for signs of overheating or discoloration
- Test trip functionality during scheduled maintenance
- Clean external surfaces to prevent dust accumulation
Common Issues and Solutions
- Frequent Tripping: Check if motor current exceeds set value or if there are mechanical issues
- Failure to Trip: Verify trip setting and test with calibrated test equipment
- Overheating: Ensure proper ventilation and check terminal connections
- Indicator Issues: Verify auxiliary contact block connections if status indicators malfunction
Conclusion
The Fuji BM3RSB-013 9-13A overload protection circuit breaker represents a reliable, certified solution for motor protection in industrial automation applications. With its adjustable thermal-magnetic trip, compact design, and comprehensive safety features, it provides essential protection for motors in the 9-13A range while ensuring compliance with international standards.
For PLC system integrators and industrial automation professionals, this device offers the perfect balance of protection, space efficiency, and integration capabilities. Whether you're designing new control panels or upgrading existing systems, the BM3RSB-013 delivers the performance and reliability expected from Fuji Electric's renowned product line.
Ready to integrate this professional-grade protection into your automation systems? Visit our product page to learn more about specifications, pricing, and availability for your specific application requirements.
Purchase Fuji BM3RSB-013 9-13A Circuit BreakerReferences and Additional Resources
- Fuji Electric FA Components & Systems Co., Ltd. Technical Documentation
- IEC 60947 Series Standards for Low-voltage switchgear and controlgear
- UL 508 Standard for Industrial Control Equipment
- NEC Article 430 - Motors, Motor Circuits, and Controllers
- Fuji DUO Series Manual Motor Starters Catalog (available from authorized distributors)
Note: Always consult the latest product documentation and follow local electrical codes and regulations when installing and using electrical protection devices. Specifications are subject to change without notice.
