GE 489-P1-HI-A1-E Multi-functional Motor Management Relay

GE  489-P1-HI-A1-E  multi-functional motor management relay

I. Basic SpecificationsModel Interpretation

• 489: Product series number (SR489 series)

• P1: Current Transformer (CT) secondary input is 1A (5A optional)

• HI: Control power supply with wide-range input (DC 90-300V or AC 70-265V)

• A1: Analog output is 4-20mA (other configurations optional)

• E: Enhanced front-panel display

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II. Power Parameters

• Control Power Supply:

• Alternating Current (AC): 70-265V, 48-62Hz

• Direct Current (DC): 90-300V

• Power Consumption: Typical value ≤10VA (AC) or ≤12W (DC)

• Backup Power Supply: Supercapacitor optional to ensure data retention during power outages

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III. Input/Output InterfacesCurrent Input

• Supports 3 phase current CT inputs (1A or 5A secondary)

• Configurable neutral CT input for ground fault detection

Voltage Input

• Optional Voltage Transformer (VT) input, supporting line voltage or phase voltage measurement

Temperature Input

• Supports up to 12-channel RTD (PT100) inputs for winding temperature monitoring

Digital Inputs

• 5 programmable digital inputs, supporting dry or wet contact signals

Relay Outputs

• 4 programmable relay outputs (main trip, alarm, spare, etc.)

• Contact rating: 5A @ 250VAC/30VDC

Analog Output

• 1-channel 4-20mA analog output, configurable for parameters like current and temperature

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IV. Protection FunctionsBasic Protections

• Overload protection (8 standard curves + custom FlexCurve)

• Short-circuit protection (definite-time/inverse-time)

• Phase-loss/unbalance protection (negative sequence current detection)

• Ground fault protection (zero sequence current detection)

Advanced Protections

• Locked rotor/stator protection

• Undervoltage/overvoltage protection

• Phase sequence protection (prevents motor reversal)

• Thermal overload protection (I²t model + RTD temperature verification)

Special Functions

• Pre-trip alarm (issues early warning before faults)

• Protection against excessive motor starting time

• Mechanical fault detection (abnormal vibration/torque)

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V. Measurement and Monitoring FunctionsElectrical Parameter Measurement

• Three-phase current, voltage, frequency

• Active power, reactive power, apparent power

• Power factor, cumulative energy

Temperature Monitoring

• 12-channel RTD inputs for real-time monitoring of motor winding and bearing temperatures

Status Monitoring

• Motor thermal capacity (%)

• Cumulative start count

• Cumulative operation time

• Fault records (stores last 1,000 events)

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VI. Communication FunctionsCommunication Interfaces

• RS485 (standard configuration)

• Optional Ethernet interface (Modbus TCP/IP)

Communication Protocols

• Modbus RTU (default)

• Modbus TCP/IP (optional)

• DeviceNet (optional)

Communication Rates

• RS485: Up to 115.2kbps

• Ethernet: 10/100Mbps auto-negotiation

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VII. Display and ConfigurationFront-Panel Display

• 40-character × 2-line LCD display

• 7 LED indicators (operation, alarm, trip, etc.)

Configuration Methods

• Local configuration: Via front-panel 12-key keypad

• Remote configuration: Via communication interface and host software (e.g., Multilin Enervista)

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VIII. Physical Characteristics

• Dimensions: 177.8mm × 127mm × 127mm (height × width × depth)

• Weight: Approximately 1.8kg

• Mounting Method: Standard DIN rail mounting or panel mounting

• Protection Level: Front panel IP54, rear IP20

IX. Environmental Parameters

• Operating Temperature: -25°C to +60°C (storage temperature: -40°C to +85°C)

• Relative Humidity: 5% to 95% (non-condensing)

• Vibration Resistance: Complies with IEC 60068-2-6 (10-57Hz, 0.15mm amplitude)

• Shock Resistance: Complies with IEC 60068-2-27 (15g, 11ms duration)

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X. Certifications and Compliance

• Safety Certifications: UL, CSA, CE

• Electromagnetic Compatibility (EMC): Complies with IEC 61000-6-2 (industrial environment)

• Quality Certification: ISO 9001

XI. Typical Application Scenarios

• Industrial motor protection: Fans, pumps, compressors, conveyors, etc.

• Power systems: Substation auxiliary equipment control

• Mining and metallurgy: Motor monitoring in harsh environments

• Chemical and petrochemical: Motor protection in corrosive environments

• Water treatment: Intelligent control and energy saving of water pump motors

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XII. Differences from Other ModelsComparison with 489-P5-HI-A20-E:

• CT secondary input: P1 is 1A, P5 is 5A

• Analog output: A1 has 1-channel 4-20mA, A20 has 2-channels 4-20mA

• Display: E is enhanced LCD, standard models have regular LCD