IEC Inlet Filters FN9255

High performance dual-stage IEC C14 and C20 inlet filter


High performance dual-stage IEC C14 and C20 inlet filter

  • Rated currents up to 20 A
  • Excellent performance/size ratio
  • IEC C14 or C20 inlet acc. IEC 60320-1
  • Medical versions (B type) acc. to IEC/EN 60601-1
  • Snap-in and rear mount versions (S and M type)
  • Earth line choke version (Refer to FN9255E)
  • Safe voltage discharge version (R-type)

Features and Benefits

Exceptional attenuation performance from 150kHz to 300MHz due to dual-stage design
High saturation resistance and excellent thermal behavior
Rear and Front flange or snap-in mounting options
FN 9255 B versions comply with the requirements of 1MOP acc. to IEC/EN 60601-1 for creepage and clearance, leakage current and high potential testing
Optional earth line choke see FN 9255 E versions
All versions according IEC/EN 62368-1

Typical Applications

Medical devices (MDD)
In-vitro diagnostic medical devices (IVDD)
Computing & accessories
LCD and OLED Displays
Test and measurement equipment
Household and similar products as per IEC/EN55014
Portable electrical and electronic equipment
Small to medium-sized machines
Single-phase power supplies, switch-mode power supplies (SMPS)

Technical Specifications

Maximum continuous operating voltage

250 VAC, 50/60 Hz

Rated currents

2 to 20 A @ 40°C max

Operating frequency

DC to 400 Hz

Approvals by rated current

ENEC and CQC: IEC C14 Inlet - 2 to 10 A

ENEC and CQC: IEC C20 Inlet - 16 A

UL: IEC C14 Inlet - 2 to 15A

UL: IEC C20 Inlet - 16 to 20A

High potential test voltage

P –> PE 2000 VAC for 2 sec (standard types)

P –> PE 2500 VAC for 2 sec (B types)

P –> N 760 VAC for 2 sec

Protection category

IP 40 according to IEC 60529

Temperature range (operation and storage)

-25°C to +85°C (25/85/21)

Design corresponding to

UL 60939-3, CSA Std C22.2 No. 8, IEC/EN 60939-3, GB/T 15287, GB/T 15288

Flammability according to

UL 94 V-0

MTBF @ Rated amb. Temp./Voltage (Mil-HB-217F)

> 1,000,000 hours

Approvals & Compliances

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