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Industry standard EMC solution for
3-phase PDS filtering
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Slim space-saving book-style housing
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Solid safety connector blocks or optional
wire output connections
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Excellent attenuation performance
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HV-versions for up to 690VAC
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HVIT-versions for IT distribution networks
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P-/L-versions with low leakage current
3-phase filters
FN 258
Bookstile EMC/RFI filter for 3-phase
inverters and power drive systems
Technical specifications
Maximum continuous operating voltage:
3x 480VAC (FN 258, FN 258L, FN 258P)
3x 690VAC (FN 258HV, FN 258HVIT)
Operating frequency:
dc to 60Hz
Rated currents:
7 to 250A @ 50°C (480V filters)
7 to 130A @ 50°C (690V filters)
High potential test voltage:
P –> E 2650VDC for 2 sec (480V filters)
P –> P 2100VDC for 2 sec (480V filters)
P –> E 3100VDC for 2 sec (690V filters)
P –> P 3000VDC for 2 sec (690V filters)
Protection category:
IP20
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):
220,000 hours
Typical electrical schematic
Features and benefits
Typical applications
■ 3-phase variable speed drives and power
drive systems (PDS)
■ IT power distribution networks
(FN 258HVIT)
■ Applications comprising energy conversion
devices (inverters, converters)
■ Process automation equipment
■ 3-phase power supplies and UPS
■ Applications with low-leakage current
requirements (FN 258L and FN 258P)
■ 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 480VAC rating and filter modules
from 7 to 250A, FN 258 are ready for the
most diverse applications worldwide.
■ FN 258HV filters up to 130A are designed
for 690VAC distribution networks.
■ FN 258HVIT filters up to 130A meet the
special requirements for the application in
industrial 690VAC IT distribution
networks.
■ FN 258L and FN 258P 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.
Approvals
UL / CSA: FN 258 up to 180A (ex. -180-07)
UL / CSA: HV and HVIT up to 600VAC