RLD30P400UFF

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PTC Resettable Fuses are found in a variety of different applications, some of which require precise control over current to protect components from damage. The RLD30P400UFF is an example of this type of device, providing robust, reliable current control for critical electronic functions. This article will discuss the application field and working principle of the RLD30P400UFF.

The RLD30P400UFF is a general-purpose, single-pole, thermal-overload-protection device. It is mounted on a printed circuit board (PCB) and is available in several sizes and styles, enabling it to be used in a wide variety of applications. It has a maximum operating temperature of 130°C and the thermal response time is between 0.1 and 2.0 seconds. It is designed for use with currents between 0.4 and 15 amps and is rated at 400 mOhm maximum resistance.

The RLD30P400UFF can be used in a variety of different applications. It can be used as an over-current protection device in power supply systems, as well as providing current limiting protection for high power loads. It is also suitable for use in circuit breakers and motor starters, providing transient over-current protection. Furthermore, it can be used to protect sensitive electronic components, such as audio amplifiers and precision feedback systems.

The working principle of the RLD30P400UFF involves thermal overload protection. When current flow exceeds the rated limit, the device\'s contacts open, breaking the circuit. As the current decreases, the temperature decreases as well, and the contacts close, allowing current to flow again. This current sustaining cycle continues until the load current drops below the rated value. The device will automatically reset when the current drops back to the rated value or the load is disconnected.

The RLD30P400UFF features a unique design that allows it to operate reliably at high temperature levels without the need for additional over-temperature protection. This makes it ideal for applications in which heat dissipation is a concern, such as in automotive, industrial, or portable applications. Furthermore, the device has a low thermal impedance which helps it to respond rapidly to changes in current flow.

In conclusion, the RLD30P400UFF is a general-purpose, single-pole, thermal-overload-protection device suitable for a wide variety of applications. It offers reliable current control and has a low thermal impedance, allowing it to respond quickly to changes in current flow. Its thermal overload protection feature ensures that components are protected from damage in the event of an overload. The device is available in several sizes and styles, making it suitable for a variety of applications.

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