User guide

Line Impedance Stabilization Network
LI-550A
Com-Power Corporation 19121 El Toro Rd., Silverado, California 92676 (949) 459 - 9600 www.com-power.com
Rev. D04.14
Product Name Line Impedance Stabilization Network (LISN)
Specication CISPR 25 / CISPR 16-1-2
Application Power line conducted emissions tests
Frequency Range 100 kHz to 108 MHz
RF Connector 50Ω N-type (female)
Current Rating 50 Amperes
(AC)
, 35 Amperes
(DC)
Voltage Rating 270 VAC (Line to Ground), 380 VDC
Inductors
50 µH (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
< 1.5 dB (150 kHz to 30 MHz)
Isolation
> 20 - 40 dB (100 kHz to 3 MHz)
> 40 dB ( 3 MHz to 30 MHz)
Application
All specications are subject to change without notice.
All values are typical, unless specied.
0
10
20
30
40
50
60
70
0.1 1 10 100 1000
Impedance (ohm)
Frequency (MHz)
LISN Model No. LI-550A
CISPR 16-1-2, Ed.1.2, Tbl 5
(5uH) Impedance Limits
(±20%)
-20
-10
0
10
20
30
40
50
60
70
80
90
100
0.1 1 10 100 1000
Phase Angle (degree)
Frequency (MHz)
LISN Model No. LI-550A
CISPR 16-1-2, Ed.1.2, Tbl 5
(5uH) Phase Limits
(±11.5°)