Compact high performance power line filters for shielded rooms 8020

Compact high performance power line filters for shielded rooms 8020

For shielded rooms where the effective suppression of radiated emission is required. Shielding performance: 100 dB @ 14 kHz-40 GHz (MIL-STD-285)

The Compact high performance power line filters are capable of providing a radiated transmission loss of 100 dB at 14 kHz up to 40 GHz. The leakage current is in milliampere level and the voltage drop is less than 1 V.

The filter is made to withstand the harshest environment, and is very economical. Because of the custom design for your own filter, the assembly is very simple and always with very low leakage. This filter is also a stock item and therefore always available quickly.

This series is offered as a two line filter (single phase and neutral) or as a four line filter (three phases and neutral). The two line filter can withstand up to 230 Volt, 1-1000 amp and 46 kW. If you are looking for a filter that can withstand more power we have the four line filter, this filter delivers up to 400 Volt, 1-1600 amp and 138 kW. The neutral line is always attenuated and all conductors are decoupled from each other. This allows the conductors to operate independently without attenuation loss.

The circuit is designed as a symmetrical double- circuit with high quality rod cores providing inductance. These cores do not saturate due to their large air gap and they are insensitive to asymmetrical load.

Foil capacitors ensure a long operating life by their self healing feature even after voltage transients. A seamless fixing of the filter casing to the shielded room is very important to ensure correct operation. The filter is housed in a casing that has a base flange which provides stable mounting and excellent earthing when bolted to the shielded room via the mounting bolts.

Please note: EMP protection is available on request.

Also check our Ultra high performance filters


Technical data

Rated voltage VR for two-line filters 250 VAC/500 VDC line-line or line-case
Rated voltage VR for four-line filters 440 VAC
250 VAC
line-line
line-case
Rated Frequency fR DC -60 Hz  
Rated Current IR See characteristics referred to +40 °C ambient temperature
Number of lines 2/4  
Test voltage 1200 VDC / 2 s Line-line or line-case
Voltage drop/phase ΔV <1% of VR at 50 Hz and IR
Leakage current I Leakage See characteristics at 380 V / 220 V and 50 Hz
Reactive current I Reactive See characteristics at 380 V / 220 V and 50 Hz
Discharge Time to Below 34 V 30 s  
Climatic category 25/070/21  
Shielding performance 100 dB @ 14 kHz ~ 40 GHz
Insertion loss 100 dB @ 50 kHz ~ 40 GHz

Advantages

  • Applicable in very low frequency (VLF) applications
  • Can be delivered EMP-proof
  • Suitable for use under extreme conditions (military applications)
  • Wear resistant
  • Insensitive to corrosion

Applications

  • Shielded rooms
  • Shielded chambers
  • Anechoic chambers
  • Military applications
  • Medical applications

Mounting

These protections are designed for mounting on the penetration panel or directly on the non-painted wall of the Faraday cage. Mounting terminals dependent on the amount of power. Please see Connection in the Product range table.


Installation diagram

The technical drawing below shows how a power line filter is mounted on the wall a your Faraday cage.

Compact high performance power line filter instalation diagram


Shielding performance

Please note : These values are measured under laboratory conditions. Results may vary in other situations; please read our Guarantee


compact high performance filters for shielding room making process
compact high performance filters for shielding room testing

Available dimensions


Single phase and neutral filter types:

230 Volt, 1-1000 amp and 230 kVA

Outline drawing 1
Outline drawing 2

Type A B C D E F G Installation instructions Outline drawing IR (A) I Leakage (A)* I Reactive (A) Terminal connection Shielding Effectiveness (dB)
In Out
8020-2-16 188 205 120 750 450 110 80 M24 conduit screw 1 2×16 0.02 1.7 M6 Screw M6 Screw 100 dB,
14 kHz
~
40 GHz
8020-2-32 188 205 120 750 450 110 80 M24 conduit screw 1 2×32 0.02 1.7 M6 Screw M6 Screw
8020-2-63 188 205 140 920 620 110 80 M33 conduit screw 1 2×63 0.02 1.7 M6 Screw M6 Screw
8020-2-100 228 245 155 960 450 205 80 M60 conduit screw 1 2×100 0.15 7.0 M12 Screw M12 Screw
8020-2-200 228 245 155 960 450 205 80 M60 conduit screw 1 2×200 0.15 7.0 M12 Screw M12 Screw
8020-2-250 228 245 155 960 450 205 80 M60 conduit screw 1 2×250 0.15 7.0 M12 Screw M12 Screw
8020-2-400 320 340 205 1360 850 170 120   2 2×400 0.30 7.0 Bus bar Bus bar
8020-2-630 370 390 225 1300 800 170 105   2 2×630 0.45 7.0 Bus bar Bus bar
8020-2-800 485 505 255 1450 900 185 115   2 2×800 0.58 7.0 Bus bar Bus bar
8020-2-1000 510 530 255 1450 900 185 115   2 2×1000 0.58 7.0 Bus bar Bus bar
* If voltage between neutral and earth is 0V
Actual size may differ from the above. Please contact us for the correct size

Three phases and neutral filter types:

400 Volt, 1-1600 amp and 1100 kVA

Outline drawing 3
diagram 4
Outline drawing 4
Type A B C D E F G Installation instructions Outline drawing IR (A) I Leakage (A)* I Reactive (A) Terminal connection Shielding Effectiveness (dB)
In Out
8020-4-16 288 305 120 750 450 110 80 M33 conduit screw 3 4×16 0.005 1.7 M6 Screw M6 Screw 100 dB,
14 kHz
~
40 GHz
8020-4-32 288 305 120 750 450 110 80 M33 conduit screw 3 4×32 0.005 1.7 M6 Screw M6 Screw
8020-4-63 348 365 140 920 620 110 80 M33 conduit screw 3 4×63 0.005 1.7 M6 Screw M6 Screw
8020-4-100 348 365 155 960 450 205 80 M60 conduit screw 3 4×100 0.05 7.0 M12 Screw M12 Screw
8020-4-200 348 365 155 960 450 205 80 M60 conduit screw 3 4×200 0.05 7.0 M12 Screw M12 Screw
8020-4-250 388 405 155 960 450 205 80 M60 conduit screw 3 4×250 0.05 7.0 M12 Screw M12 Screw
8020-4-400 536 556 205 1360 850 170 120   4 4×400 0.08 7.0 Bus bar Bus bar
8020-4-630 670 690 225 1300 800 170 105   4 4×630 0.1 7.0 Bus bar Bus bar
8020-4-800 900 920 255 1450 900 185 115   4 4×800 0.12 7.0 Bus bar Bus bar
8020-4-1000 945 965 255 1450 900 185 115   4 4×1000 0.12 7.0 Bus bar Bus bar
8020-4-1200 910 930 275 1790 1150 270 125   4 4×1200 0.18 7.0 Bus bar Bus bar
8020-4-1400 910 930 275 1790 1200 280 110   4 4×1400 0.18 7.0 Bus bar Bus bar
8020-4-1600 880 900 285 1930 1200 280 110   4 4×1600 0.24 7.0 Bus bar Bus bar
* If voltage between neutral and earth is 0V
Actual size may differ from the above. Please contact us for the correct size

 

 

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* Note: The red blocks are required