B57213P0470M301

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Inrush current limiters (ICL) are electrical components used in power sources and circuits to limit the inrush current of the power supply. The B57213P0470M301 ICL is a single-phase NTC thermistor specifically designed for limiting inrush current in a wide variety of applications. It is a low cost, reliable, and energy efficient alternative to other current limitation solutions.

The B57213P0470M301 ICL has a high inrush current capacity of 470A at <50Hz/55°C and a maximum peak voltage of 250VAC. It is designed to provide an economical solution to limit exceeding inrush currents in both normal and surge conditions, protecting valuable ac power sources from damage. Furthermore, the B57213P0470M301 ICL is easy to install and requires minimal maintenance.

The working principle behind the B57213P0470M301 ICL is based on the physics of negative temperature coefficient (NTC) thermistor characteristics. When the power supply is switched on, the thermistor rapidly cools down. The resistance of the thermistor is inversely proportionate to its temperature; thus, the thermistor resistance increases when its temperature decreases. The increasing thermistor resistance limits the flow of the inrush current, and when the temperature rises to a certain level, the thermistor resistance decreases to allow the normal flow of power through the thermistor. This action maintains the generated inrush current below the rated value.

The B57213P0470M301 ICL is ideal for regulating inrush current in a wide range of consumer and industrial applications including AC motors, switch-mode power supplies, inverters, UPSs, LED lighting, air-conditioners, and much more. ICLs can be connected across the line terminals of the circuit, controlling and protecting the power source from current overloads.

The B57213P0470M301 ICL is designed with a special encapsulation material to provide superior heat resistance and environmental protection. It is RoHS compliant, halogen free, and free of heavy metals. The ICL also features a high cycle life and low power losses for added cost-effectiveness and long-term reliability. In addition, its low power dissipation decreases the risk of fire and failure.

In conclusion, the B57213P0470M301 ICL is a low cost, reliable, and energy efficient solution for current limitation. It is capable of limiting the inrush current of a wide variety of applications while providing long-term reliability and a high cycle life. The ICL is easy to install and is designed with a special encapsulation material for superior heat resistance and environmental protection, making it an ideal choice for a variety of consumer and industrial applications.

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