Line Impedance Stabilization Network (LISN)

LI-3100

10 kHz - 400 MHz

LI-3100

100 Amps LISN for DO-160, MIL-STD 461, CISPR 25 and CISPR 16

The LI-3100 Line Impedance Stabilization Network (LISN) can handle upto 100 Amps AC (70 Amps DC) current and provides the necessary measurement platform for performing power line conducted emissions compliance testing as required by DO-160 & MIL-STD 461F and CISPR 25 and CISPR 16 from 10 kHz to 400 MHz.

The concept and advantages of the LISN is to:
a) connect in series with, and impose a defined impedance on, the lines under test; thereby providing a distinct advantage over current or voltage probe measurements, where the impedance of the lines is largely uncontrolled;
b) provide a coaxial RF measurement port for connection to the measurement equipment, to which the disturbance voltages present at the EUT port are coupled for measurement; and,
c) isolate the AE (ancilliary equipment) port from the EUT and RF ports, which:
1) minimizes the influence of the AE-connected equipment/cabling on the impedance (and voltage division factor) of the network; and,
2) reduces the amplitude of any ambient signals, as well as spurious disturbance voltages generated by the AE-connected equipment, thereby minimizing their potential impact on the measurement results.

Two pairs of LI-3100 can be used to accommodate 3-phase power systems (Wye or Delta configurations).

  • Frequency range of 10 kHz to 400 MHz
  • Fully compliant with DO-160/ MIL-STD 461/ CISPR 25/ CISPR 16
  • 5 µH “Air-core” inductor to prevent saturation
  • Individual Calibration Included
  • Three-Year Warranty
  • Product Name: Line Impedance Stabilization Network (LISN)
  • Specification: RTCA DO-160 / MIL-STD 461F / CISPR 25 / CISPR 16
  • Application: Power Line conducted emission tests
  • Frequency Range: 10KHz - 400 MHz
  • RF Connector: 50 Ohms N-type (female)
  • Current Rating: 100 Amperes AC, 70 Amperes DC
  • Voltage Rating: 480 VAC (Line to Ground), 676 VDC
  • Inductors: 5 microhenry (air-core)
  • Mains & EUT Connections: Superior Electric SUPERCON Shrouded sockets
  • Dimensions (each network): 10 x 10 x 21 inches / 25.4 x 25.4 x 53.3 cm
  • Weight (each network): 13 lbs / 5.9 kg
  • Insertion Loss: <0.5 dB (100 kHz to 108 MHz)

  • Impedance DO-160 Limits


    Impedance CISPR 16 & 25 Limits


    Impedance Mil Std 461F & CISPR 16 Limits


    Phase CISPR 16 Limits