IEC inlet filters
FN 321
Compact IEC inlet filter
Approvalsn Rated currents up to 10A
n High attenuation performance
n Reduces interference susceptibility
Typical applications
The FN 321 IEC inlet filter combines an
IEC inlet and mains filter with excellent filter
attenuation in a small form factor. Choosing
the FN 321 compact power entry module
brings you the rapid availability of a standard
filter associated with the necessary safety
acceptances. Standard IEC connector filters
are a practical solution helping you to pass
EMI system approval in a short time. A wide
selection on current ratings and output
connections helping you to select the desired
solution for your application.
n High conducted attenuation performance,
based on chokes with high saturation
resistance and excellent thermal behavior.
n Rear or front flange mounting.
n Faston or solder terminal connections.
n Rated currents up to 10A.
n Custom-specific versions are available on
request.
n Portable electrical and electronic
equipment
n Small to medium-sized machines and
household equipment
n Single-phase power supplies, switch mode
power supplies
n Test and measurement equipment
n EDP and office equipment
n Rack mounting equipment
Features and benefits
Technical specifications
Maximum continuous operating voltage: 250VAC, 50/60Hz
Operating frequency: dc to 400Hz
Rated currents: 1 to 10A @ 50°C max.
High potential test voltage: P –> E 2000VAC for 2 sec
P –> N 760VAC for 2 sec
Protection category: IP40 according to IEC 60529
Temperature range (operation and storage): -25°C to +85°C (25/85/21)
Design corresponding to: UL 1283, CSA 22.2 No. 8 1986, EN 60939
Flammability corresponding to: UL 94V-2 or better
MTBF @ 40°C/230V (Mil-HB-217F): 800,000 hours
Typical electrical schematic
P
N
E
Line
Cx 2xL 2xCy
P‘
N‘
E‘
Load
> Components > FN 321
* Max. leakage under normal operating conditions. Note: if the neutral line is interrupted, worst case leakage could reach twice this level.
Filter selection table
FN 321-1-.. 1 (1.2) 560 10 47 3.3 -01 -05 65
FN 321-3-.. 3 (3.5) 560 3.1 47 3.3 -01 -05 65
FN 321-6-.. 6 (7.2) 560 1.2 47 3.3 -01 -05 65
FN 321-10-.. 10 (11.6) 560 0.36 47 3.3 -01 -05 65
Filter Rated current Leakage current* Inductance Capacitance Resistance Output connections Weight
@ 40°C (25°C) @ 230VAC/50Hz L Cx Cy R
[A] [µA] [mH] [nF] [nF] [kΩ] [g]
Product selector
FN 321-yy-..
01: Solder lug
05: Faston 6.3 x 0.8mm
1 to 10: Rated current
For example: FN 321-6-01, FN 321-10-05
Per CISPR 17; A = 50Ω/50Ω sym; B = 50Ω/50Ω asym; C = 0.1Ω/100Ω sym; D = 100Ω/0.1Ω sym
Typical filter attenuation
1A types 3 and 6A types 10A types
> Components > FN 321
Your local partner: To find your local partner within Schaffner’s global network, please go to www.schaffner.com January 2007
All dimensions in mm; 1 inch = 25.4mm
Tolerances according: ISO 2768 / EN 22768
FN 321 FN 321 Tolerances
Connection style -01 Connection style -05
Dimensions
A 51.5 51.5 ±0.5
B 26 26 ±0.3
C 40 40 ±0.2
D 46.6 46.6 ±0.3
E 27.9 27.9 +0.5
F 5.5 5.5 ±0.3
G 20.1 20.1
H Ø3.3 Ø3.3
I 11.4 13.4
J 10.9 10.9 ±0.5
M R ≤ 3 R ≤ 3
N 21.5 21.5 ±0.2
P 28.5 28.5 ±0.2
R M3 M3
S 90° 90°
Mechanical data
Connection style -01 Connection style -05
Panel cut out
A
C
B
E
G
S
FDI
J
H
C
PR
M
N
A
C
B
E
G
S
FDI
6.3 x 0.8
J
H
