+86 18030182217
+86 18030182217
sandydcsplc@gmail.com
Description
Product Overview
The ABB B09261 is a high-performance electronic motor protection relay designed for advanced monitoring and control of three-phase induction motors in industrial applications. Engineered to safeguard motors against overload, phase imbalance, and thermal stress, this relay integrates seamlessly with ABB’s motor control centers (MCCs) and distributed control systems (DCS). As part of ABB’s Emax 2 series, the B09261 combines precision sensing with intuitive diagnostics, ensuring optimal motor efficiency and minimizing downtime in critical processes such as manufacturing, water treatment, and power generation.
Key features include programmable trip settings (0.2–1200% of motor rated current) and thermal memory to prevent restarting motors before they cool down, reducing mechanical wear . The relay supports Modbus RTU and Profibus DP communication protocols, enabling real-time data exchange with PLCs or HMIs for remote configuration and status monitoring . Its IP20-rated enclosure and -25°C to +70°C operating temperature range ensure reliability in harsh industrial environments, while UL and CE certifications guarantee compliance with global safety standards .
The B09261 offers dual-channel protection for both motor and load, with configurable alarm thresholds for voltage unbalance, under/overvoltage, and ground fault detection. Its user-friendly LCD interface displays real-time parameters like current, voltage, and power factor, while LED indicators provide quick status updates. By detecting incipient faults early, the relay helps extend motor lifespan and reduce maintenance costs by up to 40% compared to traditional thermal overload relays .
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | ABB B09261 |
| Manufacturer | ABB |
| Product Type | Electronic Motor Protection Relay |
| Rated Voltage | 24–250 V AC/DC |
| Current Range | 0.2–1200 A (adjustable via CTs) |
| Trip Classes | 5, 10, 20, 30 (IEC 60947-4-1) |
| Communication Protocols | Modbus RTU, Profibus DP |
| Inputs/Outputs | 3x analog inputs (current/voltage); 2x digital outputs (relays) |
| Accuracy | ±0.5% of reading |
| Operating Temperature | -25°C to +70°C |
| Enclosure Rating | IP20 |
| Mounting | DIN rail (35 mm) or panel |
| Weight | 0.5 kg |
| Certifications | UL 508, CE EN 61010-1 |
Key Features and Advantages
Comprehensive Motor Protection:
The B09261 provides multi-fault detection for overload, phase loss, voltage imbalance, and ground faults, with adjustable time-delay settings to avoid nuisance tripping. Its thermal model simulates motor winding temperature, offering precise protection even under variable load conditions .
The B09261 provides multi-fault detection for overload, phase loss, voltage imbalance, and ground faults, with adjustable time-delay settings to avoid nuisance tripping. Its thermal model simulates motor winding temperature, offering precise protection even under variable load conditions .
Smart Diagnostics:
Integrated real-time monitoring tracks motor health metrics (e.g., power consumption, harmonic distortion), enabling predictive maintenance. The relay’s event log stores up to 50 fault records with timestamps, simplifying root-cause analysis .
Integrated real-time monitoring tracks motor health metrics (e.g., power consumption, harmonic distortion), enabling predictive maintenance. The relay’s event log stores up to 50 fault records with timestamps, simplifying root-cause analysis .
Flexible Integration:
With Modbus RTU and Profibus DP support, the B09261 interfaces seamlessly with ABB’s AC800M DCS or third-party systems. Its plug-and-play design reduces installation time by 30%, while hot-swap capability allows module replacement without disrupting operations .
With Modbus RTU and Profibus DP support, the B09261 interfaces seamlessly with ABB’s AC800M DCS or third-party systems. Its plug-and-play design reduces installation time by 30%, while hot-swap capability allows module replacement without disrupting operations .
Energy Efficiency:
By optimizing motor performance, the B09261 helps achieve 5–10% energy savings in applications like pumps and conveyors. Its low power consumption (≤5 W) further reduces operational costs .
By optimizing motor performance, the B09261 helps achieve 5–10% energy savings in applications like pumps and conveyors. Its low power consumption (≤5 W) further reduces operational costs .
User-Centric Design:
The intuitive LCD interface with backlighting and multi-language support simplifies configuration. ABB’s Automation Builder software enables remote parameter adjustment and firmware updates, enhancing system flexibility .
The intuitive LCD interface with backlighting and multi-language support simplifies configuration. ABB’s Automation Builder software enables remote parameter adjustment and firmware updates, enhancing system flexibility .
Application Areas
Manufacturing:
Deployed in conveyor systems and industrial pumps, the B09261 ensures continuous operation by protecting motors from overheating and phase imbalances. Its quick trip response (≤100 ms) prevents damage during sudden load spikes .
Deployed in conveyor systems and industrial pumps, the B09261 ensures continuous operation by protecting motors from overheating and phase imbalances. Its quick trip response (≤100 ms) prevents damage during sudden load spikes .
Water/Wastewater Treatment:
Used in pump stations and aeration systems, the relay monitors motor health in corrosive environments, ensuring compliance with EPA standards. Its wide temperature range (-25°C to +70°C) makes it suitable for outdoor installations .
Used in pump stations and aeration systems, the relay monitors motor health in corrosive environments, ensuring compliance with EPA standards. Its wide temperature range (-25°C to +70°C) makes it suitable for outdoor installations .
Power Generation:
Applied in turbine cooling systems and coal crushers, the B09261 safeguards motors against voltage fluctuations, minimizing downtime in power plants. Its CE certification ensures compatibility with EU grid regulations .
Applied in turbine cooling systems and coal crushers, the B09261 safeguards motors against voltage fluctuations, minimizing downtime in power plants. Its CE certification ensures compatibility with EU grid regulations .
Oil & Gas:
Integrated into pipeline compressors and offshore platforms, the relay provides explosion-proof protection (ATEX-certified variant available) and withstands harsh vibrations and humidity .
Integrated into pipeline compressors and offshore platforms, the relay provides explosion-proof protection (ATEX-certified variant available) and withstands harsh vibrations and humidity .
Mining:
Used in hoists and conveyor belts, the B09261 reduces maintenance costs by detecting early signs of motor degradation. Its IP20-rated enclosure resists dust and debris in mining environments .
Used in hoists and conveyor belts, the B09261 reduces maintenance costs by detecting early signs of motor degradation. Its IP20-rated enclosure resists dust and debris in mining environments .
Related Products
- ABB Emax 2 E1B1600: A circuit breaker with integrated motor protection, ideal for high-power applications requiring combined switching and safeguarding .
- ABB S800 I/O Modules: Expandable I/O modules for analog/digital signals, enhancing the B09261’s scalability in DCS setups .
- ABB AC500-eCo PLC: A compact PLC for motor control, often paired with the B09261 for distributed automation in small to medium-sized plants .
- ABB CI858K01: A drive bus interface module enabling communication between the B09261 and ABB drives via Profibus DP .
- ABB AX411/50001: A dual-channel conductivity transmitter for water treatment systems, frequently used alongside the B09261 in combined gas-liquid analysis applications .
Installation and Maintenance
Installation Preparation:
Before installing the B09261, verify the power supply voltage (24–250 V AC/DC) and select the appropriate current transformers (CTs) based on motor rating. Mount the relay on a 35 mm DIN rail in a control cabinet with IP20 environmental protection, ensuring 10 mm clearance for heat dissipation. Connect CTs to terminals X1/X2 and configure Modbus RTU settings (baud rate: 9600–115200 bps) via ABB’s Automation Builder software .
Before installing the B09261, verify the power supply voltage (24–250 V AC/DC) and select the appropriate current transformers (CTs) based on motor rating. Mount the relay on a 35 mm DIN rail in a control cabinet with IP20 environmental protection, ensuring 10 mm clearance for heat dissipation. Connect CTs to terminals X1/X2 and configure Modbus RTU settings (baud rate: 9600–115200 bps) via ABB’s Automation Builder software .
Maintenance Recommendations:
- Routine Checks: Inspect monthly for loose connections or sensor fouling. Use the relay’s LED indicators to verify power, communication, and fault status.
- Calibration: Calibrate annually using traceable current sources to ensure accuracy. Replace CTs if signal drift exceeds ±0.5% .
- Firmware Updates: Periodically update firmware via ABB’s Online Support Portal to access new features like enhanced harmonic monitoring algorithms.
- Environmental Monitoring: Ensure ambient temperature remains within -25°C to +70°C and humidity below 95% non-condensing. Clean dust from the enclosure vents quarterly .
Product Assurance
ABB guarantees the B09261 against defects in materials and workmanship for 1 year from the date of purchase. The company provides global technical support, including 24/7 troubleshooting assistance and remote diagnostics via Modbus RTU. ABB’s network of certified service centers ensures prompt repairs and replacements, while online resources (e.g., user manuals, calibration guides) support ongoing system optimization. With a commitment to sustainability, ABB’s products undergo rigorous testing to meet ISO 14001 environmental standards, ensuring the B09261 delivers reliable performance with minimal ecological impact .
For detailed technical documentation or to inquire about inventory, contact your local ABB representative or visit the ABB eFinder portal.
Note: While the B09261 is a versatile motor protection relay, always verify compatibility with your system’s specific requirements (e.g., motor rating, communication protocol) before deployment.
Contact info
- WhatsApp: +86 18030182217
- Email: sandydcsplc@gmail.com
- Phone: +86 18030182217
- Wechat: +86 18030182217
- Website: www.xiongbaparts.com
