Datasheet

ManualsBrandsSCHAFFNER ManualsHF & EMC ComponentsEMI filter 3-phase 480 Vac 8 A (L x W x H) 143 x 120 x 80 mm 8 pc(s)

■ Three-phase + neutral line filter for

general purpose four-wire filtering

■ Compact space-saving design

■ Choice of connection style

■ Low operating leakage current

3-phase + neutral line filters

FN 256

Compact general purpose

3-phase + neutral EMC filter

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Maximum continuous operating voltage: 3x 480VAC (FN 256)

3x 520VAC (FN 256 -H)

Operating frequency: dc to 60Hz

Rated currents: 8 to 160A @ 50°C

High potential test voltage: P –> E 2650VDC for 2 sec (FN 256)

P –> P 2100VDC for 2 sec (FN 256)

P –> E 3000VDC for 2 sec (FN 256 -H)

P –> P 2250VDC for 2 sec (FN 256 -H)

Protection category: IP20

IP00 (filters with connectors -28)

Overload capability: 4x rated current at switch on,

1.5x rated current for 1 minute, once per hour

Temperature range (operation and storage): -25°C to +100°C (25/100/21)

Flammability corresponding to: UL94V-2 or better

Design corresponding to: UL1283, CSA22.2 No. 8 1986, EN133‘200

MTBF @ 50°C/400V (Mil-HB-217F): 600,000 hours

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■ General purpose 4-wire filtering

■ High power office equipment

■ Power supplies

■ UPS

■ Medical applications

■ Electrical cabinets

■ Control panels

■ FN 256 filters are designed specifically for

applications involving asymmetric loads,

ranging from industrial controls to medical

electronics systems. These typically

involve insufficiently filtered converters

and switch-mode power supplies on dif-

ferent phases, causing current imbalance

and significant interference problems.

■ Employing single-stage filter circuits for

each phase and the neutral line, FN 256 fil-

ters provide high attenuation of both sym-

metrical and asymmetrical interference.

■ Used as a mains input filter, FN 256 filters

also increase conducted immunity and

thus contribute to overall system

reliability.

■ Choice of connection style as well as filter

ratings in line with common fuse values

support a fast and easy application-specific

filter selection and deployment.

■ A lightweight aluminium housing with a

small footprint ensures that the filters can

be easily accommodated on control panels

and in tight power cabinets.

Approva

By December 2005

Summary of content (3 pages)

PAGE 1
3-phase + neutral line filters FN 256 Compact general purpose 3-phase + neutral EMC filter ■ ■ ■ ■ Three-phase + neutral line filter for general purpose four-wire filtering Compact space-saving design Choice of connection style Low operating leakage current Approvals By December 2005 Technical specifications Maximum continuous operating voltage: Operating frequency: Rated currents: High potential test voltage: Protection category: Overload capability: Temperature range (operation and storage): Flamma
PAGE 2
> Components > FN 256 Filter selection table Filter* FN 256-8-46 FN 256-16-46 FN 256-25-47 FN 256-36-47 FN 256-64-52 FN 256-80-.. FN 256-120-.. FN 256-160-.. FN 256-8-46-H FN 256-16-46-H FN 256-25-47-H FN 256-36-47-H FN 256-64-52-H FN 256-80-..-H FN 256-120-..-H FN 256-160-..-H * ** Rated current @ 50°C (40°C) Leakage current** @ 400VAC/50Hz Power loss @ 25°C/50Hz [A] 8 (8.8) 16 (17.5) 25 (27) 36 (39) 64 (70) 80 (88) 120 (131) 160 (175) 8 (8.8) 16 (17.
PAGE 3
> Components > FN 256 Mechanical data 8 to 64A types 80 to 160A types (-28) 80 to 160A types (-34, -35, -40) Dimensions A B C D E F G H I J K L 8A 16A 25A 36A 64A 80A (-28) 80A (-34) 120A (-28) 120A (-35) 160A (-28) 160A (-40) 120 143 80 115 80 127.5 6.5 1 18 M6 12 33 120 143 80 115 80 127.5 6.5 1 18 M6 12 33 130 153 115 125 90 137.5 6.5 1 18 M6 13 50 130 153 115 125 90 137.5 6.5 1 18 M6 13 50 140 153 125 125 100 137.5 6.5 1.5 18 M6 13 50 160 170 110 140 110 153.5 6.5 1.5 30 M10 17.