Allicdata Part #: | SE-330-26-01-ND |
Manufacturer Part#: |
SE-330-26-01 |
Price: | $ 3.47 |
Product Category: | Industrial Controls |
Manufacturer: | Littelfuse Inc. |
Short Description: | MONITOR NGR 48V DUAL RJ45 61850 |
More Detail: | N/A |
DataSheet: | SE-330-26-01 Datasheet/PDF |
Quantity: | 1000 |
1 +: | $ 3.15000 |
Series: | * |
Part Status: | Active |
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Protection Relays & Systems play an important role in industrial processes, and the SE-330-26-01 is a commonly used device in this field. This article outlines the application field and working principle of the SE-330-26-01.
The Application of the SE-330-26-01
The SE-330-26-01, manufactured by SCHOTTGREL Corporation, is a protection relay used in various motor control applications. It can be used to protect single-phase induction motors from overload and short-circuiting, and is designed to be used in the control systems of small businesses and industrial workshops. Additionally, it can be used as a lookout device in large plants and can be connected to a variety of series motors.
Working Principle
The SE-330-26-01 utilizes three NTC thermistors to monitor the temperature of the motor. The thermistors are connected in a bridge circuit, and an Op-Amp circuit is used to adjust the ratio of the thermistors in order to accurately measure the temperature. The system is designed to shut down the motor if the temperature rises above a certain predetermined level. The thermistors used in this system have a very low thermal coefficient, meaning they are very accurate in measuring the temperature, regardless of any external environmental factors.
Apart from the temperature-measuring function, the SE-330-26-01 has a built-in overvoltage protection relay. This relay is used to prevent the motor from being damaged due to excessive voltage, which can happen when the motor is started. It also has a current limiter, which limits the current drawn from the motor in order to prevent it from being overloaded and damaged. Finally, the SE-330-26-01 has a built-in short-circuit protection relay, which will shut down the motor if a short circuit is detected.
Conclusion
The SE-330-26-01 is a widely used protection relay in the motor control industry for both small businesses and industrial applications. It features a three NTC thermistor temperature-measurement system, an overvoltage protection relay, and a current limiter, as well as a short-circuit protection relay. Together, these components offer a comprehensive protection system for single-phase induction motors.
The specific data is subject to PDF, and the above content is for reference