3-Phase Filters with Neutral FN3280

High-end Line Filter for Machinery/Equipment


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

Features and Benefits

A compact and light weight filter design with acubic 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
R69 option for easy compliance to IEC 60204-1 (DIN VDE 0113): Suitable for complex machines, where the overall insulation resistance needs to be higher than 1 MOhm.

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.

Technical Specifications

Maximum continuous operating voltage

3x520/300 VAC

Nominal operating voltage

480 VAC +10% possible

Rated currents

8 to 600 A @ 50°C

Overload capability

4x rated current at switch on,

1.5x rated current for 1 minute, once per hour

Operating frequency

DC to 60 Hz

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

Temperature range (operation and storage)

-25°C to +100°C (25/100/21)

Protection category

IP 20 (8 to 200 A types)

IP 00 (300 to 600 A types)

Flammability corresponding to

UL 94 V-0

Design corresponding to

UL 1283, CSA 22.2 No. 8 1986, IEC/EN 60939

MTBF (Mil-HB-217F)

>360,000 h @ 50°C/480 V

Typical electrical schematic


Approvals & Compliances

UL Recognized Label
CSA Label
ENEC 14 Label
RoHS Label
CE Label
UKCA Label