FN258L-30-07

Series:	FN 258
Part Status:	Active
Filter Type:	Three Phase (Delta)
Configuration:	Two Stage
Voltage - Rated DC:	--
Voltage - Rated AC:	--
Voltage - Rated AC (Phase to Ground/Neutral):	277V
Voltage - Rated AC (Phase to Phase):	480V
Current:	30A
Frequency - Operating:	DC ~ 60Hz
Applications:	Inverters, Power Drive Systems
Approvals:	CSA, ENEC, UR
Operating Temperature:	-25°C ~ 100°C
Mounting Type:	Chassis Mount
Termination Style:	Terminal Block
Inductance:	--

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Introduction

Power Line Filter Modules are electrical components designed to reduce the amount of unwanted electromagnetic interference (EMI) that may be picked up by nearby equipment, and as a result, reduce system noise levels. FN258L-30-07 power line filter module falls into this category. It is a high current (up to 7A) single-phase power line filter module for intermediate filter applications in industrial systems. It features an epoxy pin-mounted metal-oxide varistor with multiple shielding layers and a snap-fit case. It provides effective low-frequency electromagnetic interference suppression and is designed for quick installation and easy access.

Application Field

FN258L-30-07 power line filter module is designed with three main application fields in mind – industrial, home and office. It can be used in industrial settings requiring high current, such as welding machines, motors, pumps, and compressors. Additionally, FN258L-30-07 is suitable for the home environment to reduce extraneous interference in the form of high voltage and EMF radiation from electric motors, power supplies, and other equipment. It is also ideal for office applications, as it helps suppress interference from nearby equipment, helping to provide a quieter working environment.

Working Principle

The FN258L-30-07 module is designed to reduce interference from external electrical sources. It works by utilizing a combination of electrostatic shielding and high-current varistors. The varistors are designed to reduce the level of electrical noise and voltage spikes that occur from nearby equipment, while the electrostatic shielding improves the power line filter’s ability to block out interference up to 7A.The FN258L-30-07 module is composed of a snap-fit case, mounted with an epoxy-coated metal-oxide varistor, two capacitors, and a chokes coil. Each component works together to fight off interference. The varistor dissipates extra voltage surges, the capacitors absorb the electrical current, and the chokes coil restricts the current flow, forming a type of filter capacitor.

Conclusion

FN258L-30-07 power line filter module is a high current filter module designed for intermediate power line filter applications in industrial systems. It utilises a snap-fit case mounted with an epoxy-coated metal-oxide varistor, two capacitors, and a chokes coil, providing effective low-frequency electromagnetic interference suppression. It is suitable for a variety of applications, from industrial settings to the home and office, and meets the requirements for power line filter solutions suitable for 7A maximum current.

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