RGEF250

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PTC, or Positive Temperature Co-efficient, Resettable Fuses are a type of fuse designed to protect electronic circuits from surges and high-current fluctuations. These fuses are made from polymeric positive temperature co-efficient material (PTCR). PTCR fuses are formed by winding an insulated PTC wire around a metal core. The wire is then soldered onto a circuit board.

The RGEF250 is an example of a PTC Resettable Fuse. This fuse is designed to protect circuits from over-currents up to 250 amps. When the current passes through this fuse, the heat generated in the PTC wire causes the wire to expand and form an electrical resistance barrier. When the current passes through this barrier, the fuse trips, interrupting the circuit\'s current flow.

The RGEF250 is engineered for use in a wide range of electrical and electronic applications. These applications include motors, alternators, air compressors, circuit breakers, and other high-current devices. The fuse is also suitable for automotive and recreational vehicle applications such as car audio, alarms, and lights.

The working principle of the RGEF250 involves the detection of excessive on-state currents. These currents can occur during start-up or fault conditions. When the current passes through the PTC wire, heat is generated, which makes the wire expand. As the wire expands, it creates an electrical resistance that trips the fuse and interrupts the current. At this point, the fuse is reset by simply disconnecting the power, allowing the wire to cool down and reset.

The RGEF250 PTC Resettable Fuse is designed to provide protection from over-currents without the need for replacement fuses. It can be used in a variety of applications and is well-suited for use in automotive and recreational vehicle applications. The fuse\'s ability to trip and reset on its own makes it an effective and reliable way to protect circuits from high-currents and surges.

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