Product Short Description

Technical Specifications

  • Electrical Parameters
    • The control power input ranges from 90 – 300VDC and 70 – 265VAC, operating at a frequency of 48 – 62Hz to adapt to mainstream industrial power supplies.
    • It adopts 1A phase current transformer secondaries for phase current input, with an input impedance of 226±10% and a current pickup level adjustable from 2.0 to 20.0 times the current transformer primary in 0.1 increments.
    • It is equipped with 9 optically isolated digital inputs and 4 analog outputs. There are discrepancies in analog output specifications from different sources, with some showing 0 – 1mA and others 4 – 20mA.
    • The insulation voltage is 300V, the overvoltage category is II, and the pollution degree rating is 2, which meets the electrical safety standards for industrial equipment.
    • The timing accuracy is ±50ms, the response time is 100ms, and the transition time can be adjusted from 1 to 250 seconds in 1-second increments.
  • Physical Parameters
    • The front-mounted dimensions are 144mm×144mm×112mm, with a compact structure that fits standard control cabinets.
    • The front protection level reaches IP40 and the back protection level is IP20, which can prevent dust and small water droplets from entering the internal components.

Description

  • Environmental Parameters
    • The operating temperature range is -40°C to 60°C, and the storage temperature range is -40°C to 80°C, adapting to extreme cold and high-temperature industrial environments.
    • The conformal coating enables stable operation in chemical and dusty environments, enhancing resistance to environmental corrosion and stress.

Function Features

  • Comprehensive and Reliable Motor Protection

    It provides all-round protection against overload, short circuit, ground fault and motor stall. It supports customizable overload curves and single current transformer differential protection. The transition level for protection can be adjusted from 25% to 300% of the full-load current, and the time delay can be set from 0 to 1000ms, which can quickly trigger tripping actions when faults occur to avoid irreversible damage to motors.

  • Precise Monitoring and Clear Data Display

    It can real-time monitor key electrical parameters such as motor current, voltage and frequency. The 40-character liquid crystal display clearly presents operating data and status information. When faults occur, the indicator LEDs immediately signal the fault type, allowing on-site personnel to quickly identify problems without complicated testing.

  • Flexible Configuration and Remote Management

    The EnerVista 469 software enables remote parameter configuration and data retrieval via the RS232 port. It supports multiple communication protocols such as Modbus RTU and Profibus, realizing seamless connection with upper-level control systems and facilitating centralized management of multiple motor devices.

  • Durable Structure and Enhanced Protection

    The conformal coating on the internal components and the graded protection level design enhance the product’s durability. It can operate stably in chemical plants, mines and other harsh environments where corrosion and dust are serious, and effectively extend the service life of the relay and the motor it protects.

  • Intelligent Diagnosis and Alarm Functions

    It has self-assessment and motor health evaluation capabilities. It can detect rotor problems and other potential faults in advance and send configurable alarms. It can store fault and operation records to provide data support for subsequent fault analysis and maintenance.

Application Scenarios

  • Oil and Gas Industry

    It is applied to motor equipment such as oil well pumps, pipeline compressors and drilling rigs. Its corrosion-resistant and moisture-proof characteristics can adapt to offshore drilling platforms and onshore refinery environments, preventing production accidents and economic losses caused by motor failures during oil and gas extraction and transportation.

  • Mining and Metallurgy

    It protects motors of crushers, conveyors and blast furnace fans in mining sites and metallurgical plants. The harsh conditions in mines and metallurgical workshops with high dust and large temperature fluctuations are matched by the relay’s robust structure and conformal coating, ensuring continuous operation of key equipment.

  • Power and New Energy Field

    It is installed in motors of auxiliary equipment such as circulating water pumps and induced draft fans in thermal power plants and substations. It is also suitable for wind power generation systems, protecting the motor operation of wind turbines and ensuring the stable output of electric energy.

  • Chemical and Pharmaceutical Industry

    It is used for motors of mixers, reactors and conveying pumps in chemical and pharmaceutical production lines. The conformal coating can resist the erosion of chemical gases and liquids, avoiding equipment shutdown caused by relay failure and ensuring the safety and continuity of chemical production processes.

  • Water Treatment and Pulp and Paper Industry

    It is widely used in motors of water pumps, aerators and sludge treatment equipment in water treatment plants. In pulp and paper mills, it protects motors of pulp beaters and paper machines. It ensures the normal operation of these devices and maintains the stability of water treatment efficiency and paper production lines.

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