Product Short Description
Technical Specifications
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- Electrical Parameters
- The control power supply range is 90 – 300V DC / 70 – 265V AC, which is suitable for various industrial power supply standards.
- The rated voltage is fixed at 250V AC, and it is compatible with both 50Hz and 60Hz power frequencies.
- It is configured with a 100-ohm platinum RTD to realize accurate temperature detection of motor windings.
- It is equipped with 12 programmable RTDs, 5 digital inputs, 1 analog input and 4 relay outputs to meet diverse signal processing and control needs.
- It is equipped with a 1 – phase current transformer and a 2000:1 ground current transformer to accurately collect current signals and detect ground faults.
- Physical Parameters
- The overall dimensions are 11.40 inches × 7.50 inches × 16.00 inches, and the weight is approximately 7.5 pounds (3.4 kilograms), which is convenient for installation in standard industrial control cabinets.
- The protection level reaches IP65, which can effectively prevent the intrusion of dust and water splashes and adapt to harsh on-site environments.
- Electrical Parameters
Description
- Environmental and Operational Parameters
- The operating temperature range is -25°C to +60°C, and the storage temperature range is -25°C to +85°C, which can adapt to the temperature changes of most indoor and outdoor industrial sites.
- The accuracy of the running time counter is ±1%, which can accurately record the running time of the motor and provide data support for predictive maintenance.
- The maximum power consumption is 20VA, which has low energy consumption and does not increase excessive load to the industrial power grid.
Function Features
- Comprehensive Fault Protection
It provides all-round protection for motors against various common faults, including overload, short circuit, ground fault, locked rotor, stall, phase loss, overvoltage and undervoltage. Once these faults are detected, the relay can quickly trigger alarm signals or cut off the circuit, thus avoiding irreversible damage to the motor and preventing the fault from spreading to the entire electrical system.
- Precise Temperature Monitoring and Protection
With a 100-ohm platinum RTD, it can continuously and accurately monitor the temperature of motor windings. When the temperature exceeds the preset safe threshold, the relay will immediately initiate corresponding protective actions. This function effectively solves the problem of motor burnout caused by long-term high-load operation leading to excessive temperature, and extends the service life of the motor.
- Flexible Custom Curve Function
It provides eight standard overload curves for users to choose from by default. If the standard curves cannot match the load characteristics of specific motors, users can input their own breakpoints to create custom overload curves. This flexibility enables the relay to be applied to various special motor equipment and improves the adaptability of the product.
- Strong System Integration and Communication Capabilities
It is equipped with RS – 232 and RS – 485 communication interfaces, and supports communication protocols such as Modbus RTU and CAN. It can seamlessly connect with PLC, DCS and other upper – level control systems, realizing centralized monitoring and unified management of motors. It can also transmit motor operating data and fault information to the upper – level platform in real time to lay a foundation for intelligent factory management.
- Convenient Fault Diagnosis and Maintenance
It has a high-sensitivity fault detection capability, which can quickly identify fault types and locations and record relevant fault data. Maintenance personnel can rely on the recorded information to quickly locate the cause of the fault without complicated troubleshooting. At the same time, it supports remote diagnosis and maintenance, which greatly shortens the equipment downtime and reduces the operation and maintenance cost.
Application Scenarios
- General Industrial Automation Production Lines
It is widely used to protect motors in key equipment such as pumps, fans, conveyors and compressors on industrial production lines. In automobile manufacturing, electronic component processing and textile printing and dyeing workshops, it ensures the coordinated operation of various motor-driven equipment, avoids production line shutdown caused by motor faults, and improves the stability and efficiency of the production process.
- Oil and Gas Industry
It is applied to the motor protection systems of oil drilling platforms, refineries and long-distance oil and gas transmission pipelines. It protects the motors of pumping units, pipeline valves and compression equipment in the harsh on-site environment with large temperature differences and high humidity, preventing motor failures from causing oil and gas leakage and production interruption, and ensuring the safety of the entire production and transportation process.
- Power and Energy Industry
It plays an important role in power plants, hydropower stations and other energy facilities, especially for protecting the motors of auxiliary equipment such as boiler feed pumps, induced draft fans and water circulation pumps. It ensures the stable operation of these auxiliary motors, which indirectly guarantees the continuous and stable output of electric energy and avoids large-scale power outages caused by the failure of small and medium-sized motors.
- Metallurgy and Mining Industry
In metallurgical plants and mines, it is used to protect the motors of crushing equipment, ore conveying belt systems and smelting auxiliary equipment. These sites have harsh working conditions with large vibration and more dust, and the IP65 protection level and strong fault resistance of the relay can ensure continuous protection of motors, maintaining the continuity of ore mining and metal smelting work.
- Chemical and Water Treatment Industry
In chemical plants and water treatment plants, it protects the motors of chemical dosing pumps, sewage lifting pumps and water quality detection equipment. It can stably operate in corrosive and humid environments, ensuring the normal progress of chemical reaction processes and sewage purification processes, and meeting the relevant environmental protection and production safety standards.





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