TRF250-183S

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PTC Resettable Fuses are a type of solid state thermal device which act as circuit breakers, since they are designed to stop an electrical circuit in the event of a short circuit or overload. As the current reaches their rated value, the temperature of the fuse rises, melting the internal insulation and thus breaking the circuit.After the device cools down and the fuse resets, it regains its original continuity and becomes operational again. These fuses offer great protection against surge events, because once the circuit has been opened, the PTC Resettable Fuse will remain in an open circuit state, thus preventing further damage.

The TRF250-183S is a device typically used in industrial applications such as UPS, automation systems, circuit boards, motor control, and general electric circuit protection. This particular device has a 250V working voltage and is designed to open at 183V, thus providing reliable and consistent circuit protection. It also features a fast response time, allowing it to open within 8ms of the voltage reaching its rated value.

The TRF250-183S works by utilizing a self-regulating thermistor (PTC or Positive Temperature Coefficient) as its main component. This thermistor is surrounded by a metal housing, and is filled with a special mixture of a non-conductive thermal compound. When the device reaches its rated voltage, it causes a rise in temperature which melts the internal insulation of the device, thus interrupting the circuit. The TRF250-183S has a current rated value of 0.25 Amps, which allows for a maximum junction temperature of 85°C when operating at a rated voltage.

The main advantages of the TRF250-183S PTC Resettable Fuse are its excellent protection against surges, reliable performance, fast response time, and its ability to reset itself without any external intervention. In addition, the device is UL recognized and has undergone rigorous testing to ensure that it is safe for use in industrial environments. This device is also lightweight and small in size, making it easy to install and integrate into existing systems.

The TRF250-183S is an excellent choice for applications requiring reliable overcurrent protection. Its fast response time, small size, and low cost make it attractive for use in a wide range of industrial and commercial applications. This device also provides excellent protection against surges, making it an ideal choice for protecting electrical systems subject to frequent disturbances.

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