EMC Item no.: 265
  • Current Probes / Clamps / LISNs / CDNs
  • LISNs
Test Mode: Emissions
Test Type: Conducted
Manufacturer: B & L
Frequency: 100kHz-100MHz

There is a minimum 3-day hire period

Product description

The Belling & Lee Y20172 Single Phase LISN is a single circuit unit designed around a heavy current 5 µH coil sufficiently damped to provide a constant 50 Ω up to 100 MHz.  The LISNs are rated to a maximum of 100 A.

This item consists of a pair of Y20172 LISNs with associated 50 Ω loads, allowing a 2-line DC or single phase AC supply to be connected.

The low frequency performance can be improved by the addition of a 10 µF capacitor (included) on the input of each line, which is a requirement of Def Stan 59-411.

To comply with Def Stan 59-411, when using this item on DC supplies, a 30,000 µF (± 50%) capacitor is required. Please also select item 274 in this instance. 


General specification

RF Frequency range: 100 kHz to 100 MHz
Power Frequency range: DC to 400 Hz
Inductance: 5 µH
Maximum Voltage: 250 Vac
Max Current at DC / 50 Hz: 100 A
Max Current at 400 Hz: 70 A
Accessories: 4 x 50 Ω 10 watt Loads
   2 x 10 µF Capacitors


Other accessories are available - please contact us