Product Short Description
Technical Specifications
- Electrical Parameters
- The rated voltage ranges from 200V AC to 690V AC, and it is compatible with both 50Hz and 60Hz power frequencies, adapting to mainstream industrial power grids.
- The current setting range is 0.5A to 600A, covering the current demand of most medium and large industrial motors.
- The insulation voltage is fixed at 300V, ensuring safe electrical isolation during operation.
- The fuse rating is 5×20mm, 250V and 2.5A, providing basic circuit protection for the relay itself.
- It supports three programmable RTD types, including Pt100, Pt1000 and Ni120, for flexible adaptation to different temperature detection requirements.
- Physical Parameters
- The dimensions are 110mm×55mm×30mm, and the weight is approximately 0.5kg, with a compact size that fits most motor starters and facilitates installation in space-limited control cabinets.
- It adopts a 19-inch standard rack-compatible design with a 1U height, supporting standardized rack-mounted installation for neat system layout.
Description
- Environmental and Operational Parameters
- The operating temperature range is -40°C to +70°C, and the storage temperature ranges from -40°C to 85°C, adapting to extreme temperature changes in outdoor and indoor industrial sites.
- It has an IP67 protection rating, which can resist dust intrusion and water splashing, meeting the use requirements of humid and dusty industrial environments.
- The trip time accuracy reaches ±1% of the displayed value, ensuring precise execution of protection actions when faults occur.
- The unbalance delay can be set between 0s and 60s, and the short-circuit trip level can be adjusted from 1 to 11 times the current transformer primary current or turned off.
Function Features
- Comprehensive Fault Protection
It covers a full range of protection functions including overload, short circuit, phase loss, single-phase operation, undervoltage, overvoltage and ground fault. It also provides locked rotor protection and breaker failure protection. For example, it adopts fixed and inverse time delay modes for overload protection, and can quickly cut off the circuit when a short circuit occurs, effectively avoiding irreversible damage to motor windings and other core components.
- Precise RTD Temperature Monitoring
It is equipped with dedicated RTD input interfaces to sense temperature signals from motor bearings and windings. By matching different types of RTD sensors, it realizes real-time and accurate temperature monitoring. When the temperature exceeds the preset threshold, it immediately initiates an alarm or protection action to prevent motor burnout due to overheating.
- Convenient Operation and Visual Monitoring
The front LCD display clearly shows status messages, fault conditions and parameter values. The LED indicators quickly indicate the operating state of the relay. The dust-tight and splash-proof keypad allows for easy parameter configuration, and a protective door is available to cover the keys when not in use to prevent misoperation. It also supports manual and automatic reset modes to adapt to different on-site maintenance needs.
- Seamless System Integration
With an RS485 communication interface and support for the Modbus RTU protocol, it can transmit motor operating data and fault information to upper-level industrial control systems in real time. This enables centralized monitoring and unified management of multiple motors by the central control platform, improving the intelligence level of the entire industrial control system.
- Rugged and Durable Structural Design
The IP67 protection rating and conformal coating options for outputs enhance its resistance to harsh environmental factors such as dust, moisture and corrosion. It can withstand RFI tests of 50MHz/15W, maintaining stable performance without being interfered by electromagnetic signals from surrounding industrial equipment, ensuring long-term reliable operation.
Application Scenarios
- General Manufacturing Industry
It is widely used to protect motors in equipment such as pumps, fans, compressors and conveyor belts on production lines of automobile manufacturing, electronic component processing and textile printing and dyeing. It ensures the continuous operation of these key transmission and processing equipment, avoiding production line shutdowns caused by motor faults and improving overall production efficiency.
- Oil and Gas Industry
In oil drilling platforms, refineries and pipeline transportation systems, it protects the motors of pumping equipment, pipeline valves and compression systems. It operates stably in harsh on-site conditions with large temperature differences and high humidity, preventing motor failures from leading to oil leakage, production interruptions and other safety hazards.
- Power and Energy Industry
It is applied to the protection of motors in power plants, including those driving auxiliary equipment such as boiler feed pumps and induced draft fans. It also safeguards motor systems in hydropower generators and gas turbine supporting equipment, ensuring the stable operation of energy production auxiliary systems and indirectly guaranteeing continuous energy output.
- Water Treatment and Environmental Protection Field
In water treatment plants, it provides protection for the motors of water intake pumps, sewage discharge pumps and chemical dosing devices. It monitors the operating status of these motors in real time, ensuring the normal progress of water purification, sewage filtration and disinfection processes, which is crucial for maintaining stable water supply and environmental protection standards.
- Building and Infrastructure
It protects motors in key equipment of large commercial buildings, shopping malls and transportation hubs, such as elevators, central air conditioning compressors and ventilation fans. It prevents sudden motor failures from affecting building operations and user experience, and ensures the safety and comfort of building environments.
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