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Tekbox Line Impedance Stabilisation Networks


LISNs are key components in EMC testing. To monitor for unwanted emissions on the supply line, the LISN is inserted into the supply line of the DUT and used in conjunction with a test receiver or spectrum analyser. Typically, the receiver or spectrum analyser is controlled by software such as EMCview. The software ensures that the analyser settings comply with the CISPR 16 specifications and allows you to load and run preconfigured tests for all major EMC standards. Measurement data points are plotted against the limits of the selected standard and can be exported as a test report.

One of the most important features of a LISN is that it provides a fixed source impedance for the DUT. This ensures that the measurement is repeatable regardless of the output impedance of the power source used. This feature is also used in many other EMC test setups where LISNs are used to establish a fixed supply impedance rather than to measure radiated emissions. As a result, LISNs can be found in test setups for radiated emissions, immunity testing and a variety of other applications.


Tekbox LISN, TBL5000 series


Model TBL5016-1 TBL5016-2 TBL5016-3 TBL5032-3
Frequenzy range 9 kHz-30 MHz 9 kHz-30 MHz 9 kHz-30 MHz 9 kHz-30 MHz
Impedance 50 Ω (50 µH + 5 Ω) 50 Ω (50 µH + 5 Ω) 50 Ω (50 µH + 5 Ω) 50 Ω (50 µH + 5 Ω)
Further specs 6 A LISN
1 path
CISPR16-1-2, MIL-STD461F
LISN type: V-AMN, configurable as 50 Ω/50 µH + 5 Ω
or 50 Ω/50 µH
Maximum current: 16 A continuous
Operating voltage range: 0-250 VDC; 0-250 VAC (50/60 Hz),
0-120 VAC (400 Hz)
Fuse: 2x 16 A slow
High current plug/screw terminals - male:
Phoenix Contact 1998933,
female: Phoenix Contact 1967375
Dimensions (mm): 250 x 225 x 140 (incl. ground brackets)
2.7 kg
6 A LISN
2 paths
CISPR16-1-2
Artificial hand: 220 pF + 511 Ω
Switchable PE: 50 Ω||50 µH
Limiter/attenuator: 150 kHz-30 MHz; 10 dB
Air core inductors
Line voltage: max. 240 V/50-60 Hz
Max. current: 16 A at 23 °C
DUT socket: Country specific
Measurement connector: 50 Ω BNC
Power connector: IEC 60320 C19
Operating temperature: +5-+40 °C; 5-80 % rel. humidity
Safety: Safety Class I, IEC 1010-01
16 A LISN
3 paths
CISPR16-1-2
Artificial hand: 220 pF + 511 Ω
Switchable PE: 50 Ω||50 µH
250 µH pre-filter
Separate RF outputs for each line and neutral
Air core inductors
Line voltage: max. 540 V/260 V/50-60 Hz, CAT II
Max. current per line and neutral: 16 A at 23 °C each
3-phase DUT socket: CEE/IEC60309, 3L+N+PE, 16 A, female
Single-phase DUT socket: Country specific
Power connector: CEE/IEC60309, 3L+N+PE, 16 A, male
Measurement connectors: 50 Ω BNC
Operating temperature: +5-+40 °C; 5-80 % rel. humidity
Safety: Safety Class I, IEC 1010-01
32 A LISN
3 paths
CISPR16-1-2
Artificial hand: 220 pF + 511 Ω
Switchable PE: 50 Ω||50 µH
250 µH pre-filter
Separate RF outputs for each line and neutral
Air core inductors
Line voltage: max. 540 V/260 V; 50-60 Hz, CAT II
Max. current per line and neutral: 32 A at 23 °C each
3-phase DUT socket: CEE/IEC60309, 3L+N+PE, 32A, female
Single-phase DUT socket: country specific
Power connector: CEE/IEC60309, 3L+N+PE, 32 A, male
Measurement connectors: 50 Ω BNC
External 9 kHz high pass filter, N-male/N-female
Operating temperature: +5-+40 °C; 5-80 % rel. humidity

Tekbox, other LISN models


Model TBOH01 TBL0550-1 TBL05100-1 TBL50100-1 TBLC08
Impedance 50 Ω 5 µH 50 Ω 5 µH Configurable, 50 Ω 5 µH + 1 Ω, 50 Ω 5 µH 50 Ω 50 µH (50 µH+5 Ω)//50 Ω
Frequency range 150 kHz-108 MHz 150 kHz-108 MHz 150 kHz-30 MHz 150 kHz-30 MHz 9 kHz-30 MHz
Path 1 1 1 1 2
Max. current 10 A 50 A 100 A 100 A 8 A
Max. voltage 60 V nominal, component rating: 250 V 60 V nominal, component rating: 250 V 250 V nominal, component rating: 350 VAC/1000 VDC 250 V 240 V
EUT socket 4 mm (banana) Phoenix high current Phoenix high current Phoenix high current Country specific mains socket
Additional features
Filter/limiter/attenuator, switchable
Artificial hand connection
PE switchable: 50 Ω 50 µH