corcom SK User Manual
SK Series
20, 30 and 40 Amp
High Performance K Series
RFIPower Line Filters
ULRecognized
CSA Certified
VDEApproved
SKSeries
This series of RFI filters was designed to reduce
conducted noise to acceptable limits for equipment that
must comply with the FCCspecifications in the USA and
CISPR specifications in Europe.
Specifications
VSK Models ESK Models
Maximum leakage current,
each line-to-ground
@ 120 VAC 60 Hz: 0.75 mA 0.3 mA
@ 250 VAC 50 Hz: 1.25 mA 0.5 mA
The SK (SuperK) series filters offer significantly higher
performance than the Kseries, which makes this series
particularly suited for equipment with high line-to-ground
as well as line-to-line conducted emissions.
The ESK models meet the very low leakage current
requirements of SEV, VDE portable equipment and (120
Volt) UL544 nonpatient medical equipment.
Models ESK6C and VSK6C additionally incorporate a
separate ground-circuit inductor to isolate the equipment
chassis from power line ground at RFfrequencies.
Electrical Schematic
Resistor location for reference only.
Hipot rating (one minute):
line-to-ground 2250 VDC
line-to-line 1450 VDC
Operating frequency: 50/60 Hz
Rated voltage: 120/250 VAC
Rated current: @120 VAC @ 250 VAC
20ESK/20VSK 20A 16A
30ESK/30VSK 30A 25A
40VSK 40A 36A
Minimum insertion loss in dB:
Line-to-ground in 50 ohm circuit
Frequency VSK VSK VSK ESK ESK
MHz 20A 30A 40A 20A 30A
.01 7 2 2 7 2
.08 23 13 15 22 13
.10 25 14 18 24 15
.15 29 15 22 28 15
.5 43 27 40 35 27
1 44 31 43 38 31
5 48 46 45 45 40
10 48 51 50 45 41
30 48 39 30 45 36
Line-to-line in 50 ohm circuit
Frequency VSK VSK VSK ESK ESK
MHz 20A 30A 40A 20A 30A
.01 1 5 7 1 5
.08 10 13 14 10 12
.10 8 13 16 8 12
.15 8 13 30 8 13
.5 45 60 65 45 60
1 60 60 65 60 60
5 65 51 65 65 51
10 60 43 57 60 43
30 60 43 50 60 43
Libertyville, IL (847) 680-7400
SK
73
Series SK
Case Styles
Metric shown in italics.
20ESK6 &20VSK6
.187
Holes: Terminals: No. 8-32
4.75
30ESK6 &30VSK6
Torque 18 ± 2 in.lb.
Case Dimensions
Metric shown in italics.
A B C D E
Part No. (max) (max)(max)± .015(max)
± .38
20ESK6, 5.09 2.25 1.78 4.063 4.46
20VSK6 127.3 57.2 45.2 103.2 129.3
A B C D E
Part No. (max) (max)(max)± .020(max)
± .51
30ESK6, 4.92 3.12 2.75 3.437 4.0
30ESK6C 125.0 79.25 69.85 87.3 101.6
30VSK6, 4.92 3.12 2.75 3.437 4.0
30VSK6C 125.0 79.25 69.85 87.3 101.6
40VSK6 6.0 3.12 2.18 3.5 3.96
152.4 79.25 55.4 88.9 100.6
Ordering Information
Consult your local Corcom sales representative for pricing.
30ESK6C &30VSK6C
Mounting slots: Terminals: 10-32
.250 x .156
6.35 x 3.96
40VSK6
Torque 27 ± 3 in.lb.
Available Part Numbers
20ESK6 30VSK6
20VSK6 30VSK6C
30ESK6 40VSK6
30ESK6C
Line Cord No. GA400
Mounting slots: Terminals: 10-32
Libertyville, IL (847) 680-7400
.203 x .156
5.16 x 3.96
Torque 27 ± 3 in.lb.
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