Datasheet

Ultra-compact EMC/RFI Filter for
Three-phase Systems and Motor Drives
Approvals■ New: solid safety connector blocks
available for the whole range
■ Exceptional attenuation performance
from 150kHz to 30MHz
■ Excellent saturation resistance up to
50m cable length
■ Most compact and slim filter design
in its class
Typical applications
■ 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
50m 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 resist-
ance 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.
■ Three-phase variable speed motor drives,
servo drives, inverters and converters
■ Applications comprising energy conversion
devices like machines or process auto-
mation equipment
■ HVAC equipment, elevators, power
supplies, UPS and further three-phase
applications
Features and benefits
Technical specifications
Maximum continuous operating voltage: 3x 480/277VAC (FN 3258)
3x 520/300VAC (FN 3258H)
Operating frequency: dc to 60Hz
Rated currents: 7 to 180A @ 50°C
High potential test voltage: P –> E 2650VDC for 2 sec
P –> P 2100VDC for 2 sec
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
MTBF @ 50°C/400V (Mil-HB-217F): 300,000 hours
Typical electrical schematic
L1
L2
L3
Line
Cx R1
L
Cy
L1‘
L2‘
Load
L3‘
Cx
PE
R2
PE
3-phase Filters
FN 3258