3-Phase Filters FN3100

Bookstyle EMC/RFI Filter for Motor Drives


Bookstyle EMC/RFI Filter for Motor Drives

  • Exceptional broadband attenuation performance from 10 kHz up to 30 MHz
  • Slim and user-friendly book-style design with touch-safe terminal blocks for minimum space and maximum safety
  • Enables compliance with Class B limits


Article Rated Current @ambient Leakage current IEC60939 Power Loss Input/Output connections (Nm) Distribution stock Compare Read More
Input terminal Output terminal
FN3100-35-33 FN3100-35-33 356.811.833 - STB10 10mm233 - STB10 10mm2
FN3100-50-34 FN3100-50-34 509.31834 - STB25 25mm234 - STB25 25mm2
FN3100-80-35 FN3100-80-35 801025.935 - STB50 50mm235 - STB50 50mm2
FN3100-80-56 FN3100-80-56 801025.956 - JTB M8 screw terminal56 - JTB M8 screw terminal
FN3100-110-35 FN3100-110-35 1101032.735 - STB50 50mm235 - STB50 50mm2
FN3100-110-56 FN3100-110-56 1101032.756 - JTB M8 screw terminal56 - JTB M8 screw terminal
FN3100-150-40 FN3100-150-40 1501050.640 - STB95 95mm240 - STB95 95mm2
FN3100-200-40 FN3100-200-40 2001067.240 - STB95 95mm240 - STB95 95mm2
FN3100-230-40 FN3100-230-40 2301036.540 - STB95 95mm240 - STB95 95mm2
FN3100-300-99 FN3100-300-99 300105499 - special / busbar99 - special / busbar

Features and Benefits

High performance filter for mainly industrial motor drive applications with significant interference levels
Attenuation performance for Class B compliance in applications comprising multiple motor drives (e.g. machine tool with up to 8 driving axes with ~10 to 20 m motor cable each)
Broadband filter performance with low frequency attenuation down to 10 kHz for reliable suppression of conducted interference
Slim book-style shape requiring minimum cabinet space and allowing convenient installation right beside the motor drive
Touch-safe terminal blocks provide unsurpassed electrical safety and contacting cross section according to EN 60204-1 installation standard
For even better filter specifications, please consider FN 3120 H series from Schaffner

Typical Applications

Conventional motor drives with long motor cables and high interference levels
Four quadrant motor drives and servo drives with energy regeneration mode (in combination with a suitable line reactor or LCL filter)
Industrial applications comprising power conversion devices, such as machinery, machine tools and process automation equipment
Uninterruptible power supplies (UPS)
Converters for renewable energy generation
Thyristor drives
Elevators and cranes

Technical Specifications

Maximum continuous operating voltage

3x520/300 VAC

Nominal operating voltage

480 VAC

Rated currents

35 to 300 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 –> E 2750 VDC for 2 sec

P –> P 2250 VDC for 2 sec

Temperature range (operation and storage)

-25°C to +100°C (25/100/21)

Protection category

IP 20

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)

>400,000 h @ 50°C/480 V

Typical electrical schematic


Approvals & Compliances

RoHS Label
UL Recognized Label
C CSA US Label
CE Label
UKCA Label

(FN3100 up to 150 A)