FN351-50-33

Series:	FN 351
Part Status:	Active
Filter Type:	Three Phase (Delta)
Configuration:	Single Stage
Voltage - Rated DC:	--
Voltage - Rated AC:	--
Voltage - Rated AC (Phase to Ground/Neutral):	250V
Voltage - Rated AC (Phase to Phase):	440V
Current:	50A
Frequency - Operating:	DC ~ 60Hz
Applications:	Inverters, Power Drive Systems
Approvals:	CSA, ENEC, UR
Operating Temperature:	-25°C ~ 85°C
Mounting Type:	Chassis Mount
Termination Style:	Terminal Block
Inductance:	--

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Power Line Filter Modules

Power line filter modules are designed to reduce noise on the power line, which can be reduced reaching the desired level while preventing power disruption. The FN351-50-33 series of power line filter modules is a key element of such designs. This paper will discuss the application field and working principle of the FN351-50-33 power line filter module.

Application Field

As an EMI filter module, the FN351-50-33 power line filter module is suitable for various electrical equipment that is subject to high levels of EMI and needs to be protected from it. It is especially suitable for industrial products that need to pass various EMC tests, such as IEC 60512-26, IEC60950, EN60825 and UL497, etc. It can be used in UPS power supplies, LED drivers, communication equipment, IT equipment and a variety of other industrial products.

Working Principle

The FN351-50-33 power line filter module consists of three elements: a fuse, an inductor, and a capacitor. The fuse serves to protect the power line from short-circuits and over-currents. If there is a short-circuit or an over-current, the fuse will blow and cut off the power line. The inductor stores and divides current while the capacitor filters out noise and provides damping.The components of the power line filter module work together to provide protection from interference. The inductor acts as a stop-level protection to prevent interference from reaching the device it is connected to. The capacitor acts as a low pass filter, filtering out high frequency noise from entering the device it is connected to.The filter module also has galvanic isolation, which prevents current from flowing back to the power line. This means that devices connected to the filter module are better protected from external interference.

Conclusion

The FN351-50-33 power line filter modules are suitable for use in a variety of applications where noise reduction on the power line is necessary to protect sensitive electronic components. The modules consist of three components – a fuse, an inductor, and a capacitor – working together to provide protection from EMI, as well as offering galvanic isolation. This makes them an ideal choice for power line filter designs.

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