ABB REM545BG227AAAB Motor Protection and Control Relay

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Product Information: ABB REM545BG227AAAB Motor Protection and Control Relay

Detailed Specifications:

• Model: REM545BG227AAAB

• Type: Motor Protection and Control Relay

• Operating Voltage: 24 V DC / 110 V DC / 220 V DC (depending on configuration)

• Rated Current: 5 A to 100 A (selectable based on current range)

• Measurement Range: 0.1 A to 100 A (depending on the current sensor selection)

• Protection Functions: Overload protection, short-circuit protection, phase loss protection, ground fault protection, over-voltage/under-voltage protection, etc.

• Measurement Functions: Current, voltage, power factor, frequency, etc.

• Response Time: ≤ 50 ms

• Communication Interfaces: Supports Modbus, DNP3, IEC 61850, and other industrial communication protocols

• Inputs/Outputs: Multiple programmable inputs and outputs

• Display Function: Color LCD display, supports local display, remote monitoring, and control

• Mounting Type: Panel mount (DIN rail mount optional)

• Protection Rating: IP20 (dust and water protection depends on installation environment)

• Operating Temperature Range: -20°C to +60°C

• Storage Temperature Range: -40°C to +85°C

• Dimensions: 144mm x 144mm x 120mm

• Certifications: CE, UL, IEC

• Weight: 1.5 kg

Product Advantages and Features:

1. Comprehensive Protection: The ABB REM545BG227AAAB relay provides complete motor protection, including overload, short circuit, ground fault, phase loss, over-voltage/under-voltage, and other protective functions, ensuring the safety of motors and their electrical systems.

2. Flexible Current Range: Supports rated currents from 5 A to 100 A, adaptable to different motor configurations, suitable for motors across a wide range of power ratings.

3. Fast Response Time: With a response time of just 50 ms, the relay ensures quick response to faults and abnormal events, reducing equipment damage and downtime.

4. Advanced Measurement Capabilities: Capable of measuring current, voltage, power factor, and frequency, helping users monitor motor operation in real-time and optimize energy management.

5. Reliable Communication: Supports Modbus, DNP3, IEC 61850, and other industrial protocols for seamless integration with other automation devices and monitoring systems, enabling remote control and monitoring.

6. User-Friendly Display: The color LCD display provides an intuitive interface for easy setup and operation, with support for both local and remote monitoring.

7. Versatile Application: Suitable for a wide range of motor protection scenarios, particularly in industrial automation, building electrical systems, energy management, and more.

8. Temperature Adaptability: Operates reliably in environments with temperatures ranging from -20°C to +60°C, making it suitable for various industrial settings.

Applications:

• Motor Protection and Control: Used for overload, short-circuit, ground fault, and phase loss protection in motors, widely applied in various industrial equipment, pumps, fans, conveyor systems, and more.

• Industrial Automation: Integrated into industrial automation systems for motor protection and control, working alongside PLCs, SCADA systems, and other automation devices.

• Energy Management: Protects motors in energy management systems, ensuring the stable operation of power facilities while monitoring motor health and energy efficiency.

• Building Electrical Systems: Used in building electrical systems for the protection and control of motorized equipment, ensuring safe operation of electrical systems.

• Water Treatment and Pump Stations: Widely applied in water treatment plants and pump stations for motor protection, preventing downtime due to motor faults.

Precautions:

1. Correct Current Selection: Choose the appropriate relay model based on the rated current of the motor to ensure accurate and effective motor protection.

2. Installation Environment: Ensure the relay is installed in an environment within the working temperature range (-20°C

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