I. Overview

II. Parameters

• Model: SR489-P5-HI-A20-E
• Brand: General Electric (GE)
• Series: SR489
• Type: Motor management relay
• Control power supply: 90-300VDC and 70-265VAC (48-62Hz)
• Phase current input: 5 channels of 1A phase transformer secondary side
• Analog output: 5 channels of 4-20mA
• Display: Enhanced LCD display
• Communication interfaces: Ethernet 10Base-T, RS232, RS485
• Protection class: IP20
• Dimensions: 144 x 144 x 112 mm (5.67 x 5.67 x 4.41 inches)
• Weight: Approximately 1.8 kg (4.0 pounds)
• Operating temperature: -20℃ to +70℃
• Input voltage: 70-265VAC
• Output voltage: 20-60VDC
• Output current: 5A
• Power: 240W
• Communication protocols: Modbus RTU, DNP 3.0

III. Product Features

• High precision and reliability: Adopts advanced protection algorithms and modular design to ensure high precision and reliability.
• Versatility: Integrates multiple protection and control functions, such as overcurrent, undervoltage, ground fault, phase reversal protection, etc.
• User-friendly interface: Equipped with an enhanced LCD display, providing an intuitive operation interface and clear fault information display.
• Communication interface support: Supports multiple communication protocols like Modbus, Profibus, etc., facilitating integration with SCADA systems.
• Modular design: Easy to expand and upgrade, supporting remote configuration and maintenance.
• High security: Features functions such as trip and alarm protection, circuit breaker fault detection, trip coil monitoring, etc.
• Anti-interference: Suitable for various industrial environments with good anti-interference capability.

IV. Structure and Composition

• Enhanced LCD display: Provides clear data display and operation interface.
• Input/output ports: Including 5 channels of 1A phase CT secondary input, 5 channels of 4-20mA analog output, RS232 and RS485 communication ports.
• Communication ports: Supports Ethernet 10Base-T, RS232 and RS485 communication.
• CT input: Supports 5 channels of 1A phase CT secondary input.
• Shell material: ABS plastic.
• Installation method: Supports DIN rail mounting or panel mounting.

V. Application Fields

• Power generation: Used for monitoring and protection of power generation systems.
• Transmission and distribution: Suitable for protection and control of transmission and distribution systems.
• Industrial automation: Widely applied in industrial automation systems.
• Renewable energy systems: Suitable for protection and control of renewable energy systems such as wind energy and solar energy.
• Commercial and building: Used for power system management in commercial and building sectors.
• Hospitals and data centers: Ensures the safe and stable operation of power systems in hospitals and data centers.
• Transportation: Suitable for power management in transportation systems.
• Distributed energy systems: Used for protection and control of distributed energy systems.

VI. Installation and Maintenance

• Installation method: Supports DIN rail mounting or panel mounting.
• Installation environment: Should be installed by qualified technicians in a dry and dust-free environment.
• Regular maintenance: Regular maintenance is required to ensure optimal performance and service life.
• Diagnostic and maintenance functions: Provides rich diagnostic and maintenance functions, facilitating fault troubleshooting and system optimization.
• Manuals and documents: The manual part number is 1601-0150-AE (in PDF format), which can be obtained from GE Power Management and GE Multilin.
• Notes: Ensure the installation location meets the requirements of the working environment, avoiding the impact of extreme temperature, humidity and dust.