SH05-3,81

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SH05-3,81 is a type of protective relays that is used in electrical power systems to protect the system from overcurrents, undervoltages, and other fault conditions. It is a special type of relay that can be used in both low- and high-voltage systems, and has been designed to be resistant to high-frequency noise. It has proven to be an effective protection device for electrical systems and industrial applications.

The SH05-3,81 has a voltage range of 18 to 600V AC and an overcurrent capacity up to 6000A. The relay is equipped with a number of features that make it highly reliable in terms of protection. It has a time-delay setting that can be adjusted for different application requirements. This feature allows the relay to respond to fault conditions faster than other protective relays. Additionally, the relay has a test button that can be used to check the operation of the relay without disconnecting the power supply.

The working principle of the SH05-3,81 is based on the sensing of overcurrent, undervoltage, and other fault conditions. When such a fault is detected, the relay will activate and open or close the associated contactors or breakers to isolate the faulted part of the system. In some cases, the relay may also be used to activate other protective systems such as circuit breakers or trip coils.

The SH05-3,81 is suitable for a wide variety of applications, including industrial, commercial, residential, and agriculture. It is easy to install and maintain, and its high reliability makes it a trusted choice for many types of systems.In the industrial field, it is used to protect equipment from damage caused by short circuits, overcurrents, and undervoltages. In the commercial field, it is used to protect buildings, stores, restaurants, and other commercial facilities from fire risks associated with faulty wiring. In the residential sector, it is used to protect individual homes, apartment buildings, and other dwellings from fire. In agriculture, it is primarily used to protect irrigation systems and crop fields from overcurrents, undervoltages, and other fault conditions.

The SH05-3,81 is a reliable and robust protective relay which is ideal for most applications. Its ease of installation and maintenance makes it an attractive option for many situations. Its features make it especially suitable for applications such as industrial, commercial, residential, and agricultural uses. Its high reliability makes it an excellent choice for any application where overcurrent, undervoltage, and other fault conditions need to be protected from.

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