ABB 3BDH000730R1 Motor protection relay

Product Overview

The ABB 3BDH000730R1 is a high-performance motor protection relay designed for industrial and commercial applications. It belongs to ABB’s renowned line of protective devices, engineered to ensure the safe and efficient operation of electric motors and other critical equipment. This relay integrates advanced monitoring, control, and protection functionalities, making it ideal for safeguarding motors against faults such as overloads, phase imbalances, short circuits, and phase loss.

Key Features

1. Comprehensive Protection
   • Protects motors from overloads, locked rotor conditions, phase loss, and phase asymmetry.
   • Thermal overload protection with adjustable settings to match motor specifications.
   • Short-circuit and earth fault protection (depending on configuration).
2. Advanced Monitoring
   • Real-time monitoring of current, voltage, power, and temperature.
   • Diagnostics and fault recording for predictive maintenance.
   • LED indicators and communication interfaces (e.g., Modbus, Profibus) for system integration.
3. User-Friendly Configuration
   • Intuitive interface with programmable settings via push buttons or software tools.
   • Adjustable trip thresholds and time delays for customization.
4. Robust Design
   • Compact and durable housing suitable for harsh industrial environments.
   • Wide operating temperature range (-25°C to +70°C).
   • Compliance with international standards (IEC, UL, CE).
5. Application Flexibility
   • Compatible with motors of various sizes and power ratings.
   • Suitable for pumps, fans, compressors, conveyors, and other motor-driven systems.

Technical Specifications

• Rated Voltage: 24–690 V AC (depending on model variant).
• Current Range: Configurable for motors up to several hundred kW.
• Protection Functions: Overload, phase loss, imbalance, locked rotor, undercurrent, etc.
• Communication: Optional RS485, Modbus RTU, or other protocols for integration with SCADA/DCS systems.
• Mounting: DIN rail or panel-mounted options.

Typical Applications

• Industrial motor control centers (MCCs).
• HVAC systems, water treatment plants, and manufacturing facilities.
• Renewable energy systems (e.g., wind turbine motor protection).

Certifications & Compliance

• Meets IEC 60947, UL 508, and CE standards.
• RoHS compliant.

Benefits

• Enhanced Safety: Prevents motor damage and downtime by detecting faults early.
• Energy Efficiency: Optimizes motor performance and reduces energy waste.
• Cost Savings: Extends equipment lifespan and minimizes maintenance costs.