XUW2-1600 Air Circuit Breaker

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Air Circuit Breaker (ACB) is an electrical protection device used for overloads, short circuits, and earth faults short circuit and overcurrent protection mainly at LT panel in sub-station and Main distribution board. It is used for higher current carrying capacity.

Air Circuit Breaker (ACB)is an electricalprotection device used for overloads.short circuits, and earth faults short circuitand overcurrent protection mainly at LTpanel in sub-station and Main distributionboard. lt is used for higher currentcarrying capacity. Closing Operation When the ACB is in the closed position, current flows through its main contacts.The closing coil, which is an electromagnetic device, is energized to close the circuit breakerAs the closing coil is energized, it puls the operating mechanism, closing the main contacts andallowing current to flow through Tripping Operation The tripping operation occurs when there is a fault or overload in the electrical system.Various protection devices, such as thermal overload relays, magnetic relays, or electronic relays.monitor the current flowing through the circuit.lf the current exceeds the preset threshold, the protection devices signal the trip coil to de-energizeinitiating the tripping operation Arc Extinction When the ACB opens, an arc is formed due to the interruption of the current flow. The arc generateshigh temperatures and ionized gases To extinguish the arc, the ACB relies on the surrounding air. The arc is drawn into arc chutes where it issubjected to the cooling effect of the surrounding air, causing the arc to lose energy and eventuallyextinguish. Arc Chutes Arc chutes are designed to redirect the arc into a controlled path, breaking it into smaller segments andlengthening its path. The arc chutes provide a series of plates or fins that disrupt the arc and create turbulence, aiding inquicker and more effective arc extinction Release of Energy As the arc is extinguished, the release of energy is controlled, minimizing damage to the circuit breakercomponents.

XUW2-1600 Air Circuit Breaker

TheXUW2-1 600 Series intelligent air circuit breaker (hereinafter referred to as circuit breaker) is suitable for distribution networks with frequency of AC 50Hz, rated working voltage up to 690V and rated current ranging from 200A to 1600A.

It's used to distribute electrical energy and protect lines and power equipment from overload, short circuit, undervoltage,single-phase grounding(leakage) and other faults. The circuit breaker has intelligent protection function and precise selective protection, can improve power supply reliability and avoid unnecessary power outages. Meanwhile, it has open type communication interface, which is convenient for fieldbus connection, and can be used for four remote operations to meet the requirements of the control center and automation system. Equipped with corresponding leakage transformer and intelligent controller,leakage protection can be achieved.

The circuit breaker has isolation function and is represented by symbol"_ /x”

The circuit breaker with rated working current of 630A and below can also be used for overload, short circuit, phase loss, undervoltage and ground protection of motor in AC 50 (60) Hz, 400V distribution network. Under normal condition, the circuit breaker can also serve for infrequent switching of circuit and infrequent starting of motor.

The circuit breaker complies with GB14048.1-2012 Low-voltage switchgear and controlgear-Part 1: General rules; And GB14048.2-2008 Low-voltage switchgear and controlgear-Part 2: Circuit breakers; GB14048.4-2020 Low-voltage switchgear and controlgear-Part4-1:Contactors and motor-starters-Electromechanical contactors and motor-starters( Including motor protector)

Technical data sheet