Com-Power Line Impedance Stabilization Network model LI-550A

The LI-550A Line Impedance Stabilization Network has a frequency range of 100 kHz up to 108 MHz and provides defined stable impedance and isolates the EUT from power source influences, thereby providing accurate and repeatable results.
Article number:
LI-550A
Availability:
In stock
Delivery time:
7 - 12 days

€1.899,00 €1.799,00

Excl. tax

The LI-550A 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-550A 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. The LI-550A includes one pair of, separately housed, single-conductor networks, to be installed in series with each current-carrying conductor in a singlephase, dual-phase or DC power system. A second LI-550A pair can be used to accommodate 3-phase power systems (Wye or Delta configurations).

The LI-550A is equipped with Superior Electric SUPERCON® shrouded sockets at the mains (power input) and EUT (power output) ports. The matching color-coded plugs for connection to the mains and EUT wiring are included.

This LISN uses air-core inductors to prevent saturation and permeability variation. The mounting plate of the LI-550A is left unpainted in order to facilitate connection to earth ground in its installation, which is essential due to high leakage current.

Use of a Transient Limiter for impedance matching, reduction of out-of-band emissions and transient protection for your measurement instrument is highly recommended and available from Com-Power. All Com-Power LISNs are individually calibrated in compliance with the relevant requirements of CISPR 25 and CISPR 16-1-2. Impedance, Phase, Isolation, and Insertion Loss data is supplied with each unit, along with the calibration certificate.

Features:
  • Frequency range: 100 kHz to 108 MHz
  • Fully compliant with CISPR 16-1-2 / CISPR 25
  • "Air-core" inductors to prevent saturation
  • Individual Calibration Included
  • Three Year Warranty

LISN LI-550A Impedance graph

Com-Power LI-550A Line Impedance Stabilization Network Impedance Graph

LISN LI-550A Phase graph

Com-Power LI-550A Line Impedance Stabilization Network Impedance Phase Graph
Manufacturer: Com-Power
Product Name: Line Impedance Stabilization Network (LISN)
Model: LI-550A
Application: Power line conducted emissions tests
Specifications: CISPR 25 / CISPR 16-1-2
Frequency Range: 100 kHz to 108 MHz
RF Connector: 50 Ω N-type (female)
Current Rating: 50 Amperes (AC) / 35 Amperes (DC)
Voltage Rating: 270 VAC (Line to Ground) / 380 VDC
Inductors: 5 µH (air-core)
Mains & EUT Connections: Superior Electric SUPERCON® shrouded sockets
Insertion Loss: < 1.5 dB (150 kHz to 30 MHz)
Isolation: > 20 - 40 dB (100 kHz to 3 MHz) / > 40 dB (3 MHz to 30 MHz)
Dimensions: 33 cm x 17.7 cm x 17.7 cm / 13" x 7" x 7"
Weight: 6.3 kg
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