DATASHEETIEC Inlet FiltersFN 9255
High performance dual-stage IEC C14 and C20 inlet filter
Rated currents up to 20 AExcellent performance/size ratioIEC C14 or C20 inlet acc. IEC 60320-1Medical versions (B type) acc. to IEC/EN60601-1Snap-in and rear mount versions (S and Mtype)Earth line choke version (Refer to FN9255 E)Performance indicatorsTechnical specificationsMaximum continuous operating voltage250 VAC, 50/60 HzRated currents2 to 20 A @ 40°C max.Operating frequencyDC to 400 HzApprovals by rated currentENEC and CQC: IEC C14 Inlet - 2 to 10 AENEC and CQC: IEC C20 Inlet - 16 AUL: IEC C14 Inlet - 2 to 15AUL: IEC C20 Inlet - 16 to 20AHigh potential test voltageP –> PE 2000 VAC for 2 sec (standard types)P –> N 760 VAC for 2 secP –> PE 2500 VAC for 2 sec (B types)Protection categoryIP 40 according to IEC 60529Temperature range (operation and storage)-25°C to +85°C (25/85/21)Design corresponding toUL 60939-3, IEC/EN 60939-3Flammability according toUL 94 V-0Approvals
The FN9255 IEC inlet filter incorporates a dual stagefilter into an IEC inlet that offers excellent filterattenuation in a compact housing. Using an IEC inlet,at the point of entry offers an optimized position andpractical solution for integrating an EMC filter into anysystem. A wide selection of current ratings, outputconnections and mounting possibilities are available.The filter family also offers options that comply tomedical application requirements and the entirefamily complies to all necessary safety approvals.{GPvar:L}
Features and benefits
Exceptional attenuation performance from 150kHzto 300MHz due to dual-stage designHigh saturation resistance and excellent thermalbehaviorRear and Front flange or snap-in mounting optionsOptional medical versions (B type) comply with therequirements of IEC/EN 60601-1 for creepage andclearance, leakage current and high potentialtestingOptional earth line choke see FN 9255 E versionsAll versions according IEC/EN 62368-1
Typical applications
Medical devices (MDD)In-vitro diagnostic medical devices (IVDD)Computing & accessoriesLCD and OLED DisplaysTest and measurement equipmentHousehold and similar products as per IEC/EN55014Portable electrical and electronic equipmentSmall to medium-sized machinesSingle-phase power supplies, switch-mode powersupplies (SMPS)For electrical schematic refer to page 3
2EMC/EMI ProductsSchaffner GroupDatasheets22 Nov 2018Filter selection table
FilterRated currentLeakage current*InductanceCapacitanceResistorInputOutputWeight@ 40°C@ 250 VAC/50 HzL1L2CxCy1Cy2Rconnectionsconnections(@ 120 VAC/60 Hz)**[A][mA][mH][µH][µF][nF][nF][kΩ][g]FN 9255 x-2- ..20.45 (0.26)4.8180.12.21-C14-06-0752FN 9255 x-4-..40.45 (0.26)2.1180.12.21-C14-06-0752FN 9255 x-6-..60.45 (0.26)0.9180.12.21-C14-06-0752FN 9255 x-10-..100.45 (0.26)0.2180.12.21-C14-06-0754FN 9255 x-15-..150.45 (0.26)0.1380.12.21-C14-06-0754FN 9255 x-16-..160.45 (0.26)0.30.70.12.21-C20-06-07130FN 9255 x-20-..200.45 (0.26)0.30.70.12.21-C20-06-07130FN 9255 xB-2-..2-4.8180.1-1000C14-06-0752FN 9255 xB-4-..4-2.1180.1-1000C14-06-0752FN 9255 xB-6-..6-0.9180.1-1000C14-06-0752FN 9255 xB-10-..10-0.2180.1-1000C14-06-0754FN 9255 xB-15-..15-0.1380.1-1000C14-06-0754FN 9255 xB-16-..16-0.30.70.1-1000C20-06-07130FN 9255 xB-20-..20-0.30.70.1-1000C20-06-07130Test conditions: 25°C±2°C; Measuring frequency for Inductance: 1 kHz; 50 mV;Tolerances: Inductance: +50%, -30%; Capacitance: ±25%; Resistor: ±15%; For mechanical tolerances refer to mechanical data section.** Maximum leakage under normal operating conditions (acc. to IEC60939-3). Note: if the neutral line is interrupted, worst case leakage could reach twice this level.** Standard length is 100 mm
Product selector
For example: FN 9255 MB-15-06 - FN 9255 dual stageIEC inlet with rear mount flanges, medical version,15A rated current and fast-on terminals
3EMC/EMI ProductsSchaffner GroupDatasheets22 Nov 2018Detailed electrical schematicSchematic standard version (2 to 15A)Schematic standard version (16 to 20A)Schematic B version (2 to 20A)Typical filter attenuation
Per CISPR 17symmetrical 50 Ω/50 Ω - Differential Mode (DM)asymmetrical 50 Ω/50 Ω - Common Mode (CM)
2 A (Standard Type)
2 A (B Type)
4 A (Standard Type)
4 A (B Type)
6 A (Standard Type)
6 A (B Type)
10 A (Standard Type)
10 A (B Type)
15 A (Standard Type)
15 A (B Type)
16 A (Standard Type)
16 A (B Type)
20 A (Standard Type)
20 A (B Type)
4EMC/EMI ProductsSchaffner GroupDatasheets22 Nov 2018Mechanical dataFN 9255 - 2 to 15 AFN 9255 - 16 to 20 AFN 9255 M - 2 to 15 AFN 9255 S - 2 to 15 APanel cut out-07 connection styleInstallation
5EMC/EMI ProductsSchaffner GroupDatasheets22 Nov 2018Dimensions
FN 9255FN 9255 MFN 9255 S2 to 15A16 to 20AA485351.8529.9B22.4302522.4C40±0.242±0.240±0.2-D-06: 54.5, -07: 52.582-06:54.5,-07:52.5-06:54.5,-07:52.5E28.1±0.334.6±0.328.1±0.328.1±0.3F5.8±0.23.9±0.25.8±0.25.8±0.2G20.6±0.326.7±0.320.6±0.320.6±0.3HØ3.3Ø3.5M3M3I14±0.514±0.514±0.514±0.5J13.313.313.313.3MR ≤ 3R ≤ 3R ≤ 1R ≤ 1N21.5 +0.5/-027.1 +0.2/-022.9 +0.2/-021.0 +0.1/-0P28.5 +0.5/-034.9 +0.2/-030.4 +0.2/-029.5 +0.1/-0R*M3M3Ø3.4Ø3.4S90°90°T1.5 - 2.2XAWG 18(>6A: AWG 16)AWG 14AWG 18(>6A: AWG 16)AWG 18(>6A: AWG 16)Y100±5100±5100±5100±5Z6666**Recommended torque for M3 (90° countersunk flat head) is 0.5 NmAll dimensions in mm; 1 inch = 25.4 mmFor values without dedicated tolerances ISO 2768-m/EN 22768-m applies.Please visit www.schaffner.com to find more details on connectors.
