ABB LXN1604-6 3BHL000986P7000 Motor protection relay

ABB LXN1604-6 3BHL000986P7000 Overview

The ABB LXN1604-6 3BHL000986P7000 is a low-voltage circuit breaker or motor protection relay designed for industrial and commercial power distribution systems. It provides reliable protection against electrical faults (overloads, short circuits, phase imbalances) while ensuring safe operation of motors, machinery, and electrical networks. This device integrates advanced protection features with ABB’s automation ecosystem, making it ideal for demanding environments like manufacturing plants, energy facilities, and infrastructure projects.

Key Technical Specifications

1. Electrical Ratings
   • Rated Current: Up to 1600 A (adjustable trip settings based on application).
   • Rated Voltage: AC 690 V (50/60 Hz).
   • Breaking Capacity: High short-circuit breaking capacity (e.g., 65 kA at 400 V AC).
2. Protection Features
   • Overload Protection: Adjustable thermal-magnetic tripping for motor or circuit protection.
   • Short-Circuit Protection: Instantaneous or time-delayed tripping to isolate faults.
   • Phase Imbalance/Phase Loss Detection: Prevents motor damage due to unbalanced loads.
   • Ground Fault Protection: Optional ground fault detection (if equipped).
3. Control & Communication
   • Communication Protocols: Supports Modbus RTU, PROFIBUS DP, or Ethernet/IP for integration with PLCs and SCADA systems.
   • Digital Inputs/Outputs: Configurable I/O for remote control and status monitoring.
   • Display & Interface: LCD or LED display for real-time parameter visualization (model-dependent).
4. Mechanical Design
   • Mounting: Fixed or withdrawable design for easy installation and maintenance.
   • Enclosure Rating: IP40 (standard) or higher for dust and moisture resistance.
   • Standards Compliance: Meets IEC 60947, UL 1066, and CE standards.
5. Environmental Resilience
   • Operating Temperature: -25°C to +60°C.
   • Humidity: Up to 95% non-condensing.

Core Functionalities

1. Motor Protection
   • Safeguards motors from overloads, phase failures, and locked rotor conditions.
   • Adjustable thermal memory to account for motor heating during cyclic operations.
2. Energy Management
   • Monitors power consumption and provides data for energy optimization.
   • Logs fault events and operational statistics for diagnostics.
3. Network Integration
   • Acts as a node in industrial IoT (IIoT) systems via communication modules.
   • Enables predictive maintenance through real-time condition monitoring.
4. User Customization
   • Programmable protection curves and trip thresholds via software tools (e.g., ABB Drivetune or Automation Builder).
   • Supports firmware updates for future-proofing.

Typical Applications

• Industrial Motors: Protection of pumps, compressors, and conveyor systems.
• Power Distribution: Main or sub-distribution panels in factories, data centers, and commercial buildings.
• Renewable Energy: Integration into solar/wind power inverters for grid stability.
• Marine & Offshore: Use in shipboard power systems and offshore platforms.

Advantages

• High Precision: Accurate fault detection minimizes downtime and equipment damage.
• Modularity: Expandable with auxiliary contacts, communication modules, or measurement units.
• Durability: Robust construction for harsh industrial environments.
• ABB Ecosystem Compatibility: Seamless integration with ABB drives (e.g., ACS880), PLCs, and automation software.