RHEF200-2

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PTC Resettable Fuses play a huge part in protecting electronic devices. RHEF200-2 is a type of resettable fuse, and is an ideal choice for protecting against short circuits, inrush current, overvoltage, and other potential disasters. This article will explore the application field and working principle of RHEF200-2.

Generally speaking, RHEF200-2 works for electric power, communication, motor control, and momentary inrushcurrent, in applications like automation equipment, vending machine, cooking machine, home appliance, power tools, lighting, electric vehicle and other fields. More specifically, RHEF200-2 can be used to protect power supplies and all kinds of motors, such as air conditioner, washing machine, dishwasher, and stripper motor.

One of the main functions of RHEF200-2 is to prevent excessive current flowing from a device or circuit. This fuse is composed of an electrical circuit that runs through a polymer material. This material is a PTC thermistor, meaning it will react to incremental increases in temperature by changing its electrical resistance. As the current increases in an RHEF200-2 device, the material begins to heat up and its resistance increases. If the current reaches the fuses maximum rated amperage, the material will expand, reaching its maximum temperature and releasing the tripping force in the device. This will cause an open circuit, preventing the current from further flowing in the device.

The resetting of RHEF200-2 is also very simple. All you need to do is to remove the power and wait for the material to reach a normal temperature again, causing its electrical resistance to drop again and thus restoring the original tripping state. Generally speaking, an RHEF200-2 will be able to reset itself within tens of milliseconds.

The resetting of RHEF200-2 can also be achieved manually. A simple push button on the device allows the user to reset the fuse without unplugging the device. This makes it easy for users to reset the fuse without having to leave theircurrent workstation, thus increasing their productivity.

Another advantage of RHEF200-2 is its built-in over-current protection. This is due to the electrical resistance of the PTC material. When the current passes through the PTC material in the RHEF200-2, its resistance will increase. This prevents the current from continuing to flow, thus protecting the device from any damage that would otherwise occur.

In addition to protection from current spikes and over-currents, RHEF200-2 also provides other types of protection. This includes overvoltage protection, which prevents spikes from reaching the connected device or circuit. It also includes protection from inrush current, which is particularly useful in applications that require sudden spikes in current. Finally, RHEF200-2 also provides protection from short circuits, which can cause damage and even fires.

In conclusion, RHEF200-2 is a type of resettable fuse available on the market. It has a number of advantages, such as providing protection against current spikes, over-currents, overvoltage, and inrush current. It also features an easy resetting option for when the fuse trips, as well as an over-current protection feature. All in all, RHEF200-2 is an ideal choice for protecting electronic devices, and is widely used in various applications.

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