1812L125/16DR

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PTC Resettable Fuses have undergone remarkable developments over the past few decades and are widely used today in a range of power applications such as motors, computers, telecommunications, and home appliances. These fuses can be used for protection against short circuits, over-current, and over-voltage. The 1812L125/16DR is a type of PTC Resettable Fuse designed for use in 125 or 200 Volt rated applications with a 16 Amp rating.

The 1812L125/16DR PTC Resettable Fuse starts by providing automatic over-current protection through a series of metal-oxide layers. When the current flowing through the fuse rises above the rated current value, then the metal-oxide layer will heat up and slowly increase its resistance. This will reduce the amount of current that flows through the fuse and, if the over-current condition does not cease, the resistance of the metal-oxide layer will eventually reach a point where a complete open will occur and the power is cut off to the circuit.

The 1812L125/16DR PTC Resettable Fuse also features a reverse current or over-voltage protection capability. It monitors the voltage across the conducting element for reverse current or over-voltage conditions and, if they are detected, the fuse will trip and the power will be cut off to the circuit.

The 1812L125/16DR PTC Resettable Fuse also features an auto-restart capability. When the fault condition is resolved, the metal-oxide layer will cool down and slowly decrease its resistance, allowing current to flow through the fuse again. This allows the circuit to be reset without human intervention or an additional voltage reset signal.

Overall, the 1812L125/16DR PTC Resettable Fuse is a reliable over-current and over-voltage protection device. It provides reliable current protection and reverse current or over-voltage protection with the added benefit of an auto-restart capability. This makes it ideal for use in a range of 125 or 200 Volt rated applications with a 16 Amp rating.

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