NNLK 8121 – Line Impedance Stabilisation Network

LISN NNLK 8121 - front view
LISN NNLK 8121 – front view

LISN NNLK 8121 - rear view
LISN NNLK 8121 – rear view
The Schwarzbeck NNLK 8121 is a high-capacity Line Impedance Stabilisation Network (V-LISN) built for precise EMI measurements and designed to meet strict compliance standards. Its robust construction and versatile features make it suitable for demanding testing environments.

For NNLK 8121, 400/700 V (Voltage to Neutral / Voltage between lines) and cooling fans are included by default - no extra options required.
Frequency range:9 kHz – 30 MHz
AMN impedance:(50 µH + 5 Ω) || 50 Ω
Pre-filter choke:250 µH
Maximum continuous current:4x 100 A
DC resistance per path (25°C):55 mΩ
DC resistance per path (125°C):80 mΩ
Total power dissipation:
(3 paths under load)		2.4 kW
Maximum voltage:400 VAC / 630 VDC
Standard:CISPR 16-1-2
Connectors for mains and for EuT:Wing terminals 044SWB
M8x0.75 unscrewable
Weight:~43 kg
Dimensions housing (WxHxD):450 mm x 485 mm x 550 mm
Connector to EMI receiver:N socket, 50 Ω
Suitable calibration adapters:
(2 pieces required for RF-isolation measurement)		KA 8121

Datasheet NNLK 8121

Options:

  • Option Remote Control: Remote Control with built in power supply. LISN can be controlled by R&S or Schwarzbeck code, including remote control cable for your receiver type (Please specify your receiver type!). LISN can be selected from the R&S receiver menu or in the EMC32 software like an R&S LISN. No programming of the user interface necessary. Functions: path selection and PE grounded or via choke. LISN Remote Control
  • Option Temperature Control: The temperature monitor modul which is optional available for the NNLK LISN warns the user optical and acoustical when the temperature gets too high. It controls the fans of the LISN temperature-dependent, too and thus prevents overheating. If a critical temperature is reached the temperature control module indicates this optically and acoustically.
    NNLK Temperature Control