RXEF065S

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PTC Resettable Fuses are a vital part of safety systems used to protect electric circuits from current surges or overloads. RXEF065S is one type of PTC fuse. This article will introduce the application field and working principle of RXEF065S.

Application Field

RXEF065S is mainly used for two purposes. Firstly, it is widely used in industrial electrical protection as overload protection to easily reset the circuit. Secondly, it is also used in DC applications such as solar photovoltaic array, inverters, programs, chargers, and electric power lines to protect against overloads and short circuits.

RXEF065S has good temperature stability and excellent surge current capability. It can withstand heavy currents and severe temperature cycling while providing reliable protection against short circuits. Additionally, it can be inserted into a wide variety of circuit protection devices such as holders, relays, and fuses.

Working Principle

RXEF065S is a type of PTC (positive temperature coefficient) resettable fuse. The working principle is based on the fact that when the temperature of the fuse element increases, its resistance increases as well. When current flows through the fuse element, the resistance will increase and stop the current flow.

The RXEF065S fuse consists of a PTC element, a constant temperature hotline, a shell and a movable armature. The armature actuates a switch which is in series with the PTC element when the temperature increases. The pressure of the heat melts the plastic part so that it shrinks and the armature is pushed out, opening the circuit and disconnecting the power. The PTC element will cool down afterwards, thus resetting the fuse and restoring the circuit.

Conclusion

To sum up, RXEF065S is a type of PTC (positive temperature coefficient) resettable fuse. It has excellent surge current capability and temperature stability, and can be used in industrial electrical protection and DC applications such as solar photovoltaic array, inverters, programs, chargers, and electric power lines as a reliable protection against overloads and short circuits. The working principle of RXEF065S is based on the fact that when the temperature of the fuse element increases, its resistance increases as well, stopping the current flow between two points.

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