Description
The GE SR469-P1-HI-A20-E is a motor management relay in the Multilin series of General Electric (GE) Company, mainly used for the protection of medium-voltage motors. Functional Features Powerful Protection Functions: It has functions such as overload protection, short-circuit protection, and phase-loss protection. It can quickly cut off the power supply when there are abnormalities in the motor or the circuit, protecting the safety of equipment and personnel. Precise Monitoring Capability: It can monitor parameters such as the current, voltage, and temperature of the motor in real time. Through the built-in motor thermal model, it provides functions such as RTD bias, motor cooling time constant, starting inhibition and emergency restart, unbalance bias, and overload curve, accurately reflecting the operating status of the motor. Good Communication Ability: It supports communication protocols such as Modbus RTU. It can interact data with other devices or monitoring systems through the communication port, realizing remote monitoring, control, and parameter configuration, which is convenient for users to carry out centralized management and maintenance.
Technical Parameters Power Supply: The rated range of the control power supply is relatively wide. For alternating current, it is 70 - 265 volts and 48 - 62 hertz, and for direct current, it is 90 - 300 volts. Phase Current: It is equipped with a 5A phase CT secondary coil, suitable for motor circuits of corresponding specifications. Analog Output: It provides four channels of 4 - 20mA analog output, which can be used to connect other measurement or control devices. The output load capacity is greater than 500kΩ. Operating Temperature: The side of the device is designed with an air circulation channel, which helps to maintain it within an appropriate operating temperature range and ensure stable operation.
Appearance Design
The front panel is equipped with an LCD display screen, which can display relevant operating parameters and status information. At the same time, there are several LED indicator light areas, which are used to indicate different working states, such as the power supply state and the fault state. It is also equipped with a dedicated input keyboard, which is convenient for users to carry out local configuration and operation. In addition, there is a communication port for connecting external devices to achieve the communication function.
Application Areas
It is widely applied to various types of motor and circuit control scenarios in the fields of industrial automation, power, transportation, construction, etc., providing reliable protection and convenient control for motors and ensuring the stable operation of the motor system.
Main brands include: ABB, Bailey, GE, FOXBORO, Invensys TRICONEX, Bentley BENTLY, A-B Rockwell, EMERSON EMERSON, B&R, MOTOROLA, FUANC, REXROTH, KUKA, HONEYWELL, NI, DEIF, Yokogawa, WOODWARD, Ryan, SCHNEIDER SCHNEIDER, Yaskawa, MOOG, EPRO, PROSOFT and other major brands
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