Datasheet

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 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.
Typical applications
Three-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
Three-phase power supplies and UPS
Applications with low-leakage current
requirements (FN 258L and FN 258P)
Three-Phase Filters
FN 258
Book-style EMC/RFI Filter for Three-
phase Inverters and Power Drive
Systems
Industry standard EMC solution for
three-phase PDS filtering
Slim space-saving book-style
housing
Solid safety connector blocks or
optional wire output connections
Excellent attenuation performance
HV versions for up to 690VAC
HVIT versions for IT distribution
networks
P/L versions with low leakage
current
Approvals
UL/CSA: FM 258 up to 180A (ex. -180-07)
UL/CSA: HV and HVIT up to 600VAC
Technical specifications
Maximum continuous operating voltage: 3x 480/277VAC (FN 258, FN 258L, FN 258P)
3x 690/400VAC (FN 258HV, FN 258HVIT)
Operating frequency: dc to 60Hz
Rated currents: 7 to 250 A @ 50°C (480V 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: UL 94V-2 or better
Design corresponding to: UL 1283, CSA 22.2 No. 8 1986, IEC/EN
60939
Information under the labels: UL/CSA: HV and HVIT up to 600VAC
MTBF @ 50°C/400V (Mil-HB-217F): 220,000 hours
Typical electrical schematic