DATASHEET
3-Phase + Neutral Line Filters FN 3280
High-end Line Filter for Machinery/Equipment
Now available up to 600 A
Compact, space-saving design, optimized for
industrial machinery
Combines exceptional attenuation with low
leakage current
Suitable for machines in mixed/domestic
environments (Class A/B)
Increases also the immunity if operated directly
on the mains input
Performance indicators
Technical specifications
Maximum continuous operating voltage
3x 520/300 VAC (480 VAC + 10% possible)
Operating frequency
DC to 60 Hz
Rated currents
8 to 600 A @ 50°C
High potential test voltage
P/N –> E 2750 VDC for 2 sec
P –> P 2250 VDC for 2 sec
P -> N 1300 VDC for 2 sec
Protection category
IP 20 (8 to 200 A types)
IP 00 (300 to 600 A types)
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 94 V-2 or better
Design corresponding to
UL 1283, CSA 22.2 No. 8 1986, IEC/EN 60939
MTBF @ 50°C/400 V (Mil-HB-217F)
>360,000 hours
Approvals
Features and benefits
A compact and light weight filter design with a
„cubic“ shape, requiring minimum mounting space
and thus taking the constructional conditions on
the mains input of machinery into account
Simple and time-saving installation with good
accessibility for automatic and hand tools
Solid, touch-safe terminal blocks (8 to 200 A types)
offering sufficient contacting cross section
according to the EN 60204-1 installation standard,
which is very common in industrial applications
As a mains input filter for three phases and neutral
line, FN 3280 provides enough performance to
ensure EMC compliance of machinery in mixed
(Class A) or even domestic (Class B) environments.
Further, its use will also increase the immunity of the
entire installation significantly
FN 3280 provides the attenuation performance
needed to meet the requirements of various
machine tools with up to 12 driving axes and ~10 to
20 m of motor cable each
For easy selection and application, the filter current
ratings are aligned with common fuse values
Typical applications
Mainly industrial equipment, machinery, machine
tools and diverse process auto- mation systems with
three-phase and neutral electricity supply. Due to the
outstanding attenuation performance, FN 3280 is also
the first choice for noisy power supplies, renewable
energy applications, highpower office equipment
and further three-phase and neutral devices. Because
of the relatively low leakage current, FN 3280 may
even be used for some medical devices.
Typical electrical schematic
