UTS400N-FTU-250A-3P-LL-UL

Series:	UTS400N
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Thermal Magnetic
Current Rating:	250A
Voltage Rating - AC:	600V
Voltage Rating - DC:	600V
Number of Poles:	3
Actuator Type:	Lever
Illumination:	--
Illumination Voltage (Nominal):	--
Mounting Type:	Panel Mount

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UTS400N-FTU-250A-3P-LL-UL Circuit Breaker Application Field and Working PrincipleA UTS400N-FTU-250A-3P-LL-UL circuit breaker is a type of switch used in electrical circuitry to interrupt circuits in the event of an overload or short circuit. This type of breaker is suitable for use in low voltage AC systems up to 400V, and is designed to provide protection both against overload and short circuit current conditions. It can also provide limited protection of motor circuits against thermal overload and motor burnout by tripping under fault conditions.The UTS400N-FTU-250A-3P-LL-UL circuit breaker is marked with 3 different labels. The first is UTS400N, which indicates the maximum voltage rating at which the circuit breaker can be used, which is 400V. The FTU label indicates the style of circuit breaker, which is a trip unit with an adjustable trip setting. The 250A label denotes the current rating of the circuit breaker, which means its maximum continuous current must not exceed 250A. Finally, the 3P-LL-UL identifies the number of poles, the long-lasting internal components and the UL approval.Circuit breakers are used in both residential and commercial applications to protect the wiring and systems associated with electrical devices and installations. They act like switches to interrupt the flow of power in a circuit, and can be manually operated or trip automatically based on the current conditions in a circuit. UTS400N-FTU-250A-3P-LL-UL circuit breakers are used in low voltage AC systems to provide protection from both overload and short circuit conditions.The working principle of the UTS400N-FTU-250A-3P-LL-UL circuit breaker is based on overload and short circuit protection. When the current flowing through the breaker exceeds its current or overload rating, the breaker trips and interrupts the flow of electricity. This prevents further overloading of the wiring, components, and electrical device connected to it. Similarly, when the current in a circuit rises to too high a level due to a short circuit, the breaker will trip and interrupts the flow of electricity. This prevents further damage to the wiring, components, and electrical device connected to it.The UTS400N-FTU-250A-3P-LL-UL circuit breaker has many advantages over other types of circuit breakers. It has an adjustable trip setting, can provide limited protection against thermal overloads and motor burnout, and is UL approved. Furthermore, the adjustable trip setting allows the user to set the breaker’s trip setting to a suitable level for the application, which increases its versatility. Additionally, the long-lasting internal components of the breaker reduce maintenance and provide higher levels of reliability.In conclusion, the UTS400N-FTU-250A-3P-LL-UL circuit breaker is a type of switch used in electrical circuits to interrupt the flow of current in the event of an overload or short circuit. It is suitable for use in low voltage AC systems up to 400V and is marked with 3 different labels. It provides protection from overload and short circuit current conditions and has an adjustable trip setting, limited protection against thermal overloads and motor burnout, and is UL approved. These features provide greater levels of protection and reliability in electrical systems.

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