IEC Inlet Filters FN9255E

High Performance dual-stage IEC C14 inlet filter with earth line choke


High Performance dual-stage IEC C14 inlet filter with earth line choke

  • Rated currents up to 15 A
  • Excellent performance/size ratio
  • Earth line choke Version
  • IEC C14 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)

Features and Benefits

Exceptional attenuation performance from 150kHz to 300MHz due to dual-stage design
High saturation resistance and excellent thermal behavior
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
Suitable for IEC/EN 55014 tests up to 300MHz
Rear and Front flange or snap-in mounting options
Earth line choke Version, for standard version see FN 9255
All versions according IEC/EN 62368-1

Typical Applications

Medical devices (MDD)
Household and similar products as per IEC/EN 55014
Test and measurement equipment
In-vitro diagnostic medical devices (IVDD)
Portable electrical and electronic equipment
Small to medium-sized machines and household equipment
Single-phase power supplies, switch-mode power supplies (SMPS)

Technical Specifications

Maximum continuous operating voltage

250 VAC, 50/60 Hz

Rated currents

2 to 15 A

Design corresponding to

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

Surge pulse protection (Z type)

Helps compliance to IEC61000-4-5 (Differential Mode only)

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

> 1,000,000 hours

Operating frequency

DC to 400 Hz

Flammability according to

UL 94 V-0

Approvals by rated current

ENEC and CQC: 2 to 10 A

UL: 2 to 15A

High potential test voltage

P –> PE 2500 VAC for 2 sec

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)

Typical electrical schematic


Approvals & Compliances

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