The FN 3311/FN 3310 poduct series of standard EMC/
EMI filters are based on Schaffner’s many years of
expertise in filter design for all types of converter and
inverter applications. Installed between the PV
inverter and the power grid, the FN 3311/FN 3310 AC
filters are used to influence positively the conducted
emissions on the grid side to help to comply with the
required emission standards.
Features and benefits
The FN 3311/FN 3310 series are the most compact
dedicated high current AC filters, not only suitable for
PV applications, but being an optimum fit with most
modern PV inverter topologies. In addition the filters
can be configured in a very flexible way to fulfil
custom specific application requirements. All FN
3311/FN 3310 come in unsymmetrical housings,
which help to prevent inverse installation and wrong
electrical connection. Along with solar panel-side
installed Schaffner DC EMC/EMI filters FN 2211/FN
2210, the AC filters FN 3311/FN 3310 are key to meet
the stringent international standards for electro-
magnetic compatibility and help to ensure a reliable
and fault-free operation of the entire PV system.
Technical specifications
Maximum continuous operating voltage
Operating frequency
Rated currents
High potential test voltage
3x 520/300 VAC for FN 3311
3x 520 VAC for FN 3310
DC to 60 Hz
250 to 2300 A @ 50°C
P –> E 2 kVAC for 2 sec (FN 3311 IT 3 kVAC for 2 sec)
P –> P 2.25 kVDC for 2 sec (FN 3311 IT 2.68 kVDC for
2 sec)
IP 00
4x rated current at switch on, max. 8 sec
1.5x rated current for 1 minute, once per hour
-40°C to +100°C
40/100/21 acc. to IEC 60068-1
Ni plated cu bars/Metal
UL 94V-0
UL 1283, CSA 22.2 No. 8, IEC/EN 60939, EN 60721-3
Typical applications
The FN 3311/FN 3310 series are primarily designed for
all kind of power line connected converter and
inverter applications between 250 and 2'300 A.
However, they are optimised for PV inverter and can
potentially also be applied for general purpose motor
drives applications.
Protection category
Overload capability
Temperature range (operation and storage)
Climatic category
Terminals/Housing
Flammability corresponding to
Design corresponding to
Typical electrical schematic FN 3311
*
- FN 3311 IT series without resistor to PE
- FN 3310 series without resistor and capacitor to PE
2
EMC/EMI Products
Schaffner Group
Datasheets
2018
Filter selection table
Filters */**
Rated current
@ 50°C
[A]
FN 3311 with Cy caps
FN 3311-250-99-C16-R55 or FN 3311 IT-250-99-C18-R5
FN 3311-400-99-C16-R55 or FN 3311 IT-400-99-C18-R5
FN 3311-600-99-C16-R55 or FN 3311 IT-600-99-C18-R5
FN 3311-1000-99-C16-R55 or FN 3311 IT-1000-99-C18-R5
FN 3311-1500-99-C16-R55 or FN 3311 IT-1500-99-C18-R5
FN 3311-2300-99-C16-R55 or FN 3311 IT-2300-99-C18-R5
FN 3310 without Cy caps
FN 3310-250-99-R5
FN 3310-400-99-R5
FN 3310-600-99-R5
FN 3310-1000-99-R5
FN 3310-1500-99-R5
FN 3310-2300-99-R5
250
400
600
1000
1500
2300
100
150
250
400
500
800/1000
18
30
33
70
133
201
2.3
3.1
4.0
5.5
9.9
18.2
250
400
600
1000
1500
2300
100
150
250
400
500
800/1000
0.06
0.06
0.06
0.06
0.06
0.06
18
30
33
70
133
201
2.3
3.1
4.0
5.5
9.9
18.2
Typical inverter
AC power rating***
[kVA]
Leakage current****
@ 520 VAC/50 Hz
[mA]
Power losss
@ 25°C/DC
[W]
[kg]
Weight
*
Filters with higher current ratings available upon request.
** Filters with reduced Cy capacitance to ground for high asymmetrical currents and higher voltages available upon request.
*** Calculated at rated current, 480 VAC (FN 3311)/690 VAC (FN 3311 HV) and cos phi=0.8. The exact value depends upon the efficiency of the drive, the motor and
the entire application.
**** Leakage current according IEC 60939-1
Typical filter attenuation FN 3311-xxx-99-C16-R55
Per CISPR 17; A=50 Ω/50 Ω sym; B=50 Ω/50 Ω asym
250/400 A types
600 A types
1'000/1'500 A types
2'300A types
Typical block schematic
1
PV modules
2
Schaffner DC filter FN 22xx
3
Central Inverter
4
Schaffner magnetic components
5
Schaffner AC EMC/EMI filter FN 3xxx
Important note: depending on the grounding scheme of the solar power system, including the solar panel and the grid side transformer, the appropriate DC- and AC
EMC/EMI filter version need to be selected. For support, please contact your local Schaffner sales office or partner.
3
EMC/EMI Products
Schaffner Group
Datasheets
2018
Mechnical data
250 to 2'300 A types
Busbar connections
250 to 1'000 A types
1'500 A types
2'300 A types
Note:
all FN 3311 and FN 3310 provide unsymmetrical mounting hole patterns to prevent inverse filter installation in the field.
Dimensions (the FN 3311 IT versions have the same dimensions as the FN 3311)
250 A
A
B
C
D
E
F1
F2
G
H
J
K
L
O
P
S
T
U
V
W
X
Y
Z
41
20
3
10
32.5
Ø9
46
25
4
12.5
37.5
Ø11
50
25
8
12.5
37.5
Ø11
53
40
8
20
57.5
Ø13.5
170
195
140
235
195
155
160
Ø7
1.5
M6
200 (+/- 1)
215
24.5
49 (+/- 0.5)
400 A
175
210
140
250
205
170
175
Ø9
2
M8
210 (+/- 1)
230
27
54 (+/- 0.5)
600 A
190
220
140
265
220
180
185
Ø9
2
M8
225 (+/- 1)
245
29.5
59 (+/- 0.5)
1'000 A
190
220
140
305
220
180
185
Ø9
2.5
M8
225 (+/- 1)
245
29.5
59 (+/- 0.5)
1'500 A
195
225
150
360
240
215
220
Ø11
2.5
M10
241 (+/- 1)
265
34.8
69.5 (+/- 0.5)
26
26
59
60
10
17
82.5
Ø13.5
2'300 A
220
280
165
410
265
235
240
Ø11
2.5
M10
266 (+/- 1)
290
40
80 (+/- 0.5)
40
35
60.5
70
15
20
95
Ø13.5
All dimensions in mm; 1 inch=25.4 mm
Tolerances according: ISO 2768-m/EN 22768-m, if not stated otherwise
Please see the brochure "Basics in EMC and Power Quality" on our website www.schaffner.com to find more details on filter connectors.
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