Product Description:
The NNLK 8121 is a LISN Linear Impedance Stabilization Network manufactured by Schwarzbeck, Germany and authorized for sale by EUTTEST. The device under test must be connected to the front panel wing terminals of this LISN. The maximum current that can be passed through each path is 50 A, and the maximum operating voltage of the DUT is 250 VAC or 400 VDC. This LISN is designed on the principle of an impedance (50 µH+5 Ω) || 50 Ω circuit with four butterfly screws on both the front and rear panels for testers, and meets the needs of most residential three-phase power supplies for measurement of radiated emissions from products.

Circuit Design Schematic
100A current option:
You can also use the NNLK8121 for current applications up to 100A. If you want to use more than 50A-100A frequently, please contact us to purchase the high voltage high current option, then 100A can be used continuously.
Technical parameters:
Product Specification Sheet:
“Reminder: swipe tables left and right”400 VDC
100*: 100A requires additional options, contact EUTTEST for details.
Option Hochstrom
Opt. 400/700 V.
Opt. Lüfter.
Opt. TC.
Three-phase power input and output + waterproof
Insertion loss and impedance:

S21 Parameter curve

EUT Port Impedance Graph
Order No. EUTS0291
EUTTEST is an official authorized distributor of SCHWARZBECK, whose full official name is: SCHWARZBECK MESS - ELEKTRONIK OHG
Ltd. is authorized by schwarzbeck to sell all products in China and provide technical service for the products sold.

Schwarzbeck Product List Schwarzbeck
Schwarzbeck-lisn Product Catalog Schwarzbeck
NSLK 8128 Schwarzbeck
NNLK 8129 Schwarzbeck
NSLK 8127 Schwarzbeck
NNLK 8130 Schwarzbeck
NNHV 8123-200 Schwarzbeck
NNHV 8123R Schwarzbeck