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LI-550C

100 kHz to 108 MHz CISPR 25 / CISPR 16-1-2 5 microhenry / 50 Amps

The LI-550C Line Impedance Stabilization Network (LISN) provides the necessary measurement platform for performing power line conducted emissions compliance testing as required by most worldwide standards for commercial products. The LI-550C is compliant with both CISPR 25 and CISPR 16-1-2. The LISN provides defined stable impedance and isolates the EUT from power source influences, thereby providing accurate and repeatable results.

Features

Key capabilities and advantages

  • Frequency range of 100 kHz to 108 MHz
  • Fully compliant with CISPR 25 / CISPR 16-1-2
  • Air-core inductors to prevent saturation
  • Individual calibration included
  • Three-year warranty
  • Extended frequency range up to 108 MHz
  • 5 microhenry inductance
  • High current capability up to 50A AC
  • Suitable for automotive and high-power applications

Specification

Technical specifications and parameters

Product Name Line Impedance Stabilization Network (LISN)
Specification CISPR 25 / CISPR 16-1-2
Application Power Line conducted emission tests
Frequency Range 100 kHz - 108 MHz
RF Connector 50 Ohms N-type (female)
Current Rating 50 Ampere AC, 35 Ampere DC
Voltage Rating 270 VAC (Line to Ground), 380 VDC
Inductors 5 microhenry (air-core)
Mains & EUT Connections Superior Electric SUPERCON shrouded sockets
Dimensions (each network) 13 x 7 x 7 inches / 33 x 17.7 x 17.7 cm
Weight (each network) 14 lbs / 6.3 kg
Insertion Loss < 1 dB (100 kHz to 108 MHz)
Isolation > 20 - 40 dB (100 kHz to 3 MHz), >40 dB (3 MHz to 30 MHz)
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2026
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