UTS800N-NGO-400A-3P-LL-UL Circuit Protection

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Circuit breakers are used to protect electrical circuits from overload, short circuit, and ground fault. UTS800N-NGO-400A-3P-LL-UL is one type of circuit breaker, and it has specific application fields and working principles.

First, the application field of UTS800N-NGO-400A-3P-LL-UL is mainly used in the distribution network of low voltage, such as 3-phase low voltage of 400V. Meanwhile, its application circuit contains 3-phase 4-wire distribution network with a grounded neutral point and the rated working voltage is 250V for the single-phase load and 400V for the 3-phase load.

Second, the working principle of UTS800N-NGO-400A-3P-LL-UL is that, once the current flowing through the circuit exceeds the rated current of the breaker, when the over-current protection device of the breaker is operated, the contacts of the breaker will be opened and the circuit will be disconnected.

This type of circuit breaker has two kinds of functions, including the over-current protection and short-circuit protection. In order to protect the circuit, when it senses a current that exceed its rated current, the an over-current protection device will be activated and the contact of the breaker will be opened quickly and effectively. The breaker will then be reset manually, when the fault is cleared. When there is a short circuit in the circuit, the short-circuit protection will be activated, the contact of the breaker will be opened quickly and the circuit will be disconnected. The circuit may then be reset automatically, when the fault is cleared.

Finally, it can be seen that UTS800N-NGO-400A-3P-LL-UL is a type of circuit breaker which is mainly used in low voltage distribution networks. It has both over-current protection and short-circuit protection, which can effectively protect the circuit and provide a safe working environment.

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