DATASHEET
3-Phase Filters FN 3120
High-Performance EMC/RFI Filter for Drives
High performance filter for extremely noisy
applications
Significantly improves the reliability and
immunity of installations
Enables compliance with Class B limits even
with very long cables
Performance indicators
Technical specifications
Maximum continuous operating voltage
3x 520/300 VAC (480 VAC +10% possible)
Operating frequency
DC to 60 Hz
Rated currents
25 to 230 A @ 50°C
High potential test voltage
P –> E 2750 VDC for 2 sec
P –> P 2250 VDC for 2 sec
Protection category
IP 20
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)
>300,000 hours
Approvals
Features and benefits
High-performance filter for mainly indus- trial motor
drive applications with extremely high noise levels,
providing sufficient interference suppression to
achieve Class B even with very long motor cables
(e.g. machine tools with up to 12 axes with ~10 to
20 m cables each)
Broadband attenuation performance and
exceptional saturating resistance ensure reliable
interference suppression
FN 3120 operated on the mains input of machines
or equipment contributes significantly to the
reliability and immunity by offering protection
against conducted interference phenomena
coming from the environment
Solid, touch-safe terminal blocks offer sufficient
contacting cross section according to the EN
60204-1 installation standard, which is very
common for industrial equip- ment like machine
tools
Compact dimensions and light weight design with
good accessibility for automatic and hand tools
guarantee a simple time and space-saving
installation
Typical applications
Mainly industrial equipment, machinery and machine
tools such as printing machines, packaging machines,
extruders, wood working machines, milling and
drilling machines, laser cutting machines, welding
machines, robotics, conveyors, assembly lines, pumps,
oil production, chemical and mining industry, etc. The
filters are ideal for most motor drive applications and
particularly for regenerative drives with suitable line
reactor or LCL filter.
Typical electrical schematic
