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      SR489-RELAY

      Generator Management Relay
      In Stock

      Product Information:

      a state-of-the-art generator management relay 
      designed to provide unparalleled protection and 
      monitoring capabilities for industrial applications
      Its robust design ensures reliable 
      performance even in harsh environments
      making it an ideal choice for power generation facilities
      Warranty Policy
      We provide 1 year warranty for all remaining parts.
      The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
      Return Notice
      The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
      In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
      Shiping Mode
      Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
      Parts Availability
      Moore automated offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
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      Technical specifications for SR489-RELAY

      • Manufacturer:
        General Electric
      • Product Category:
        PLC System
      • Spare Part Number:
        489-P5-LO-A20 SR489-P5-LO-A20
      • Estimated shipping dimensions:
        17.7x18x23.2cm
      • Weight:
        4.92 kg
      • Tariff Code:
        8537101190
      • Country of origin:
        USA
      • Place of shipment:
        Xiamen, Fujian, China
      • Product type:
        489 Generator Management Relay
      • Current Input Relays:
        P5 = 5 A phase CT secondaries
      • Power Supply Options:
        LO = DC: 24 – 60 V; AC: 20 – 48 V @ 48 – 62 Hz
      • Analogue Outputs:
        A20 = 4 – 20 mA analog outputs
      • Stock:
        40
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      FAQ

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      • 1. What core protection philosophy governs the operational paradigm of the SR489-RELAY?
        The SR489-RELAY is predicated on a microprocessor-based motor protection philosophy, integrating thermal modeling and real-time current analysis to safeguard rotating machinery against overload, phase imbalance, and fault conditions.
      • 2. How does the SR489-RELAY algorithmically synthesize thermal capacity utilization for motor protection?
        The SR489-RELAY employs a dynamic thermal model that continuously computes the motor’s thermal state based on current magnitude and duration, thereby enabling precise trip decisions and preventing insulation degradation.
      • 3. Why is the SR489-RELAY regarded as a critical component in motor management systems?
        The SR489-RELAY functions as an intelligent protection and control node, ensuring operational continuity by mitigating risks such as overheating, locked rotor conditions, and phase loss, which are prevalent in industrial motor applications.
      • 4. What electrical input parameters and sensing capabilities characterize the SR489-RELAY?
        The SR489-RELAY supports multi-phase current sensing through current transformers (CTs), along with optional voltage inputs, enabling comprehensive monitoring of motor electrical behavior.
      • 5. How does the SR489-RELAY differentiate between transient anomalies and sustained fault conditions?
        The SR489-RELAY integrates time-current characteristic curves and programmable delay thresholds, allowing it to distinguish between permissible transient events (e.g., motor startup) and hazardous sustained faults.
      • 6. What protective functions are inherently embedded within the SR489-RELAY?
        The SR489-RELAY encompasses a wide array of protection features, including overload protection, phase unbalance detection, ground fault monitoring, stall protection, and undercurrent supervision.
      • 7. How does the SR489-RELAY facilitate communication and system integration within modern automation frameworks?
        The SR489-RELAY supports industrial communication protocols (such as Modbus), enabling seamless integration with supervisory control and data acquisition (SCADA) systems for real-time monitoring and control.
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      Moore Disclaimer: Moore Automated's sales automation equipment and related solutions are intended for industrial automation and business operational efficiency improvement purposes only. Product information, technical parameters, and application cases are for reference only and do not constitute an absolute guarantee of performance for any specific industry, scenario, or final application. Actual equipment performance may vary depending on factors such as the usage environment, system integration method, and maintenance conditions. Users should confirm compatibility and safety based on professional technical assessments. Moore Automated assumes no liability for any direct or indirect losses caused by improper use, modification, or failure to operate according to specifications, to the extent permitted by law.