SU3D15UC

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Circuit Breakers are widely used in many aspects of modern life. While their primary function is to protect electrical circuits in the event of an overload, they can also be used to precisely control the flow of electricity to a specific piece of equipment or circuit. SU3D15UC is a type of Circuit Breaker. This article will discuss the application fields and working principles of SU3D15UC.

The primary application field of SU3D15UC is in low voltage circuit-breaker. It is mainly used for short-circuit, overload and short-circuit trips on low voltage electrical equipment. The product can meet and even exceed all the IEC60947-2, VDE0660, VDE100 and GB14048 performance requirements. It is mainly used in lighting and distribution systems, motor control systems, Switchgear, Modular Din-rail system, Electrical appliances and similar power systems.

SU3D15UC has two different methods of operation. The first one is manual trip and the second one is remote operating trip. The manual trip system is more commonly used where manual operation of the circuit breaker is required. It allows the user to open and close the main power supply of the equipment from a remote location. The second is the remote operating trip. This system is usually used where equipment is protected from short circuit and overload protection either when not in use or during operation.

The working principle of SU3D15UC is quite simple. It consists of two contacts held together by an internal arc which when in close contact opens the circuit. The contacts are usually made from copper or steel which is insulated and when an electrical current passes through them, the arc emissions occur. The arc energy is dissipated in the atmosphere until the contacts move apart and the circuit is broken. The distance between the contacts is very small; only a fraction of a millimeter when the breaker is closed. The contacts also feature a vent which allows the arc energy to escape and dissipate.

Once the circuit has been broken, the breaker will then reset itself. This is done by first restoring the contacts and then switching the breaker back on. The reset time is usually quite short, in the order of several milliseconds. During this reset time, the contacts must remain closed and the circuit must remain intact. This ensures that the circuit is adequately protected at all times.

When the breaker senses an overload or short circuit current, it will immediately open the circuit to avoid damage to the electrical system. The overcurrent detection mechanism is quite advanced and can detect even very small overloads and short-circuits. This provides a highly reliable protection system for the equipment. The breaker also includes a latch mechanism which prevents it from re-opening even when the fault persists. This ensures that any remaining fault is not allowed to cause further damage.

In summary, SU3D15UC is a type of circuit breaker that is used in low voltage electrical systems. It offers a reliable protection for the equipment by detecting and reacting to an overload or short circuit current. The manual and remote operating trip systems allow for flexibility in its application. Finally, the breaker also features a latch mechanism which helps ensure that any remaining fault is not allowed to cause further damage.

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