A Line Impedance Stabilization Network (LISN) is an essential measuring instrument used in EMC testing. The primary purpose of a LISN is to monitor RF signals within a specific frequency range while maintaining a stable impedance value. This is crucial for consistent and accurate measurements. Additionally, the LISN shields other sensitive and valuable measuring equipment.

For higher power levels, Com-Power offers several three-phase LISNs suitable for use according to CISPR 16-1-2/ANSI C63.4 standards, with current ratings ranging from 16 to 100A.

Com-Power three-phase LISN series:

• LISN 100, 1100, 1X series
  50μH inductor, used for FCC, CISPR, EN; frequency: 150 kHz – 30 MHz
• LISN 200, 2X series
  50 and 250 μH inductor, used for FCC, CISPR, EN; frequency: 9 kHz – 30 MHz
• LISN 300, 3100 series
  5 μH inductor, used for DO-160, Mil-std 461, CISPR 25; frequency: 10 kHz – 400 MHz
• LISN 400, 4100, 4X series
  50 μH inductor, used for DO-160, Mil-std 461; frequency: 10 kHz – 10 MHz
• LISN 500 series
  5 μH inductor, specifically used for CISPR 25; frequency: 100 kHz – 108 MHz

Each Com-Power LISN is individually calibrated, with data such as impedance, phase, insulation, and insertion loss reported, along with a calibration certificate.

In addition to three-phase LISNs, Com-Power also offers a range of single-phase LISNs.