AGRF800S

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PTC Resettable Fuses are a type of fuse which can reset itself automatically after a certain mishap or incident. They are primarily used as safety measures in electronic devices like radios, TV sets, computers, cell phones, etc., to protect them from electrical surges or power outages. Among the various PTC resettable fuses, the AGRF800S is a popular choice due to its versatile range of applications.

AGRF800S is a polymeric positively temperature coefficient (PPTC) type of resettable fuse. It is keyed and displays its threshold voltage with a short delay. The rated voltage for AGRF800S is 800 volts. It can dissipate an instant peak power up to 150 watts and a steady-state power up to 63 watts at normal conditions. This superior flame-proof resettable fuse has a operating temperature range of -40°C to +85°C.

AGRF800S adds numerous safety alterations to electrical systems, making it perfect in various applications such as in automobile electronic systems, lighting control, home automation, energy storage, etc. In addition, it has some significant advantages like preventing protected items from over current, short circuit, and overload, providing protection against electrical and heat hazards. It also has the quality to retain its resettable function even after a few thousand times of resets, offering mechanical protection during deep discharge.

The working principle of the AGRF800S is relatively simple. It consists of two elements; a polymeric material and a conductive path through it. When the current passing through the fuse is higher than the rated range, the fuse senses a rise in temperature. This increase in temperature causes the polymeric material to become increasingly resistive, thereby limiting flow of current; also known as Polymeric Positive Temperature Coefficient (PTC). This temporarily stops the flow of current, thus protecting the device from further damage. After a few minutes, the temperature drops down, allowing normal current flow.

AGRF800S resettable fuse has emerged as an essential protection device in automotive, consumer and healthcare applications, thanks to its superior features like excellent current limitation and overheat protection. This makes AGRF800S an ideal safety solution in various electrical systems, offering excellent protection against damage while maintaining a high level of reliability.

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