3-Phase Filters

Smallest book-style EMC/RFI filter for inverter and power drive system

Features and benefits

• FN 3287 and FN 3288 series of filters provides stateof-the-art EMI attenuation based on an innovative filter topology. They help to ensure compliance with Class C2 or even C1 limits.
• The slim book-style shape allows a convenient and space-saving installation next to inverters, converters or motor drives.
• The compact FN3287 and FN3288 filter from 10 to 160A are designed for the most diverse applications worldwide, including machinery and machine tools.
• FN 3288 HV filters up to 160 A are applicable for 690 VAC distribution networks.
• FN 3288IT and FN 3288HVIT filters up to 160 A meet the special requirements for IT distribution networks.
• Low leakage current filter versions help to fulfill tough requirements (e.g. 0.1 mA) in respect of leakage current limitation.

DIN-rail EMC/RFI filter with minimum leakage current 

Features and benefits

• Two different mounting versions: FN 3025 for chassis mounting and FN3026 for DIN rail mounting.
• Two different performance levels (L types, P types).
• A plastic housing and a metal ground plate are cleverly combined to get the lowest possible product weight without compromizing EMC behavior.
• The embedded jump-terminal system from Schaffner guarantees user-friendly handling as well as fast and reliable electrical connection.
• Captive hinged protective covers contribute to overall safety by offering protection against unintended contact with life conductors. They are included in the standard delivery package without causing extra cost.
• Very low leakage current values make these filter ranges ideally suitable for use in Japanese electricity networks as well as in applications which set value on safety and reliability.

Bookstyle EMC/EMI filter for motor drives

Features and benefits

• High performance filter for mainly industrial motor drive applications with significant interference levels
• Attenuation performance for Class B compliance in applications comprising multiple motor drives (e.g. machine tool with up to 8 driving axes with ~10 to 20 m motor cable each)
• Broadband filter performance with low frequency attenuation down to 10 kHz for reliable suppression of conducted interference
• Slim book-style shape requiring minimum cabinet space and allowing convenient installation right beside the motor drive
• Touch-safe terminal blocks provide unsurpassed electrical safety and contacting cross section according to EN 60204-1 installation standard For even better filter specifications, please consider FN 3120 H series from Schaffner

High-performance EMC/RFI filter for drives

Features and benefits

• High-performance filter for mainly indus- trial motor drive applications with extremely high noise levels, providing sufficient interference suppression to achieve Class B even with very long motor cables (e.g. machine tools with up to 12 axes with ~10 to 20 m cables each).
• Broadband attenuation performance and exceptional saturating resistance ensure reliable interference suppression.
• FN 3120 operated on the mains input of machines or equipment contributes significantly to the reliability and immunity by offering protection against conducted interference phenomena coming from the environment.
• Solid, touch-safe terminal blocks offer sufficient contacting cross section according to the EN 60204-1 installation standard, which is very common for industrial equipment like machine tools.
• Compact dimensions and light weight design with good accessibility for automatic and hand tools guarantee a simple time and space-saving installation.

Ultra-compact EMC/RFI filter for motor drives applications

Features and benefits

• The extremely compact and slim filter design allows a trouble-free installation even where the available mounting space is minimal.
• With new additional filter types providing safety terminal blocks, the most preferred connection style can be chosen fast and easy. This helps to stay in line with the electrical connection concept of a given application.
• FN 3258 filters ensure compliance with Class A limits according to EN 55011 up to 50 m cable length and beyond further they can contribute significantly to meet conducted emission limits according to Class B.
• Filter operation on the mains input side of consumers increases their reliability and conducted immunity significant.
• Chokes with exceptional saturation resistance and excellent thermal behavior are a vital part of FN 3258 design. Thus, all filters retain the expected filter performance even in very noisy applications and under full load conditions.

EMC/EMI Filter for installations with residual current device (RCD) 

Features and benefits

• Innovative low-leakage current filter with same smallest dimensions as FN 3258.
• Significant reduction of leakage and ground currents caused by long motor cables.
• Prevents unwanted fault shut-downs from RCDs in machines and process automation equipment.
• Patented filter design avoiding early saturation and ringing effects.
• Excellent attenuation compliant with: C1 limits EN 61800-3 with 30 meter motor cable and 30 mA RCD (electric shock protection)**.
• C2 limits EN 61800-3 with 100 meter motor cable and 300 mA RCD (fire protection).

Compact EMC/RFI filter for industrial motor drive applications

Features and benefits

• An extremely compact and light weight filter design requiring minimum mounting space in installations and cabinets.
• Simple and time-saving installation with good accessibility for automatic and hand tools.
• Solid, touch-safe terminal blocks, for all filters from 10 to 100 A, offering sufficient contacting cross section according to the EN 60204-1 installation standard.
• Optionally available transparent protective covers for all filters with busbars from 150 to 1000 A, to protect the installer, operator or inspector from accidental touching of live conductors. They can easily be retrofitted even if the filter is already installed and connected.
• These EMC filters provide the attenuation performance needed to fulfill EN 61800-3/A11.
• Guaranteed filter performance under fullload operating conditions 15 different filter models allow the specific choice and deployment for most industrial applications.

Compact power line AC EMC/EMI filter

Features and benefits

• The FN 3311/FN 3310 series are the most compact dedicated high current AC filters, not only suitable for PV applications, but being an optimum fit with most modern PV inverter topologies.
• In addition the filters can be configured in a very flexible way to fulfill custom specific application requirements.
• All FN 3311/FN 3310 come in unsymmetrical housings, which help to prevent inverse installation and wrong electrical connection.
• Along with solar panel-side installed Schaffner DC EMC/EMI filters FN 2211/FN 2210, the AC filters FN 3311/FN 3310 are key to meet the stringent international standards for electromagnetic compatibility and help to ensure a reliable and fault-free operation of the entire PV system.

High-current EMC/RFI filter

Features and benefits

• High-power filter for Class A compliance. With approval measurement also Class B compliance possible for some applications.
• Extremely compact high-current filter solution with minimum space requirement FN 3359 HV versions are applicable for IT power networks.
• Optionally available transparent protective covers for all filters up to 1000 A, to protect the installer, operator or inspector from undeliberate touching of life conductors. They can easily be retrofitted even if the filter is already installed and connected.
• FN 3359 also improves conducted immunity of installations.

Book-style EMC/RFI filter for inverters and power drive systems

Features and benefits

• FN 258 range of filters provides state-of- the-art EMI attenuation based on an innovative multi-stage filter topology. They help to ensure compliance with Class A or even Class B limits.
• The slim book-style shape allows a convenient and space-saving installation next to inverters and motor drives.
• With 480 VAC rating and filter modules from 7 to 250 A, FN 258 are ready for the most diverse applications worldwide.
• FN 258 HV filters up to 130 A are designed for 690 VAC distribution networks FN 258 HVIT filters up to 130 A meet the special requirements for the application in industrial 690 VAC IT distribution networks.
• FN 258 L and FN 258 P filters help to fulfill tough requirements in respect of leakage current limitation and provide an excellent solution to overcome problems with nuisance tripping of sensitive earth leakage detectors.

General purpose EMC filter

Features and benefits

• Broad range of power ratings for fast and convenient filter selection.
• Available as 440 VAC (FN 351) and 520 VAC (FN 351 H) versions for network-specific applications.
• FN 351 filters provide a broadband common and differential-mode attenuation performance, which remains available also when high interference levels are present.
• Solid, touch-safe filter terminals contribute to overall equipment safety.
• Introduced as one of the very first motor drive EMC filters in the market, FN 351 has been widely imitated and has success- fully proven its function over more than 10 years.