Website: www.kingtronics.com
Email: info@kingtronics.com Tel: (852) 8106 7033 Fax: (852) 8106 7099
SKT - Surge Arresters
2-Electrode Ceramic Surge Arrester
■ COMMON DIMENSIONS
Electrical Characteristics
DC
spark-over
voltage
(100V/s)
V
Impulse
spark-over
voltage
(1KV/us)
V
Impulse
discharge current
(10/1000us
300times)
A
AC
discharge
current
Impulse
discharge current
(8/20us 10times)
KA
Holdover
Voltage
V
Insulation
resistance
Ω
Capacitance
pF
Type
(50Hz 1s 5 times)
A
SKT-2R-75A1
SKT-2R-75D
SKT-2R-90A1
SKT-2R-90D
SKT-2R-150A1
SKT-2R-150D
75±25%
90±25%
150±20%
≤600
≤600
≤700
50
50
5
5
5
5
5
5
/
/
≥1010
≥1010
≥1010
<1.5
<1.5
<1
100
80
SKT-2R-230A1
SKT-2R-230D
+30
-40
230
≤800
100
5
5
135
≥1010
<1
SKT-2R-250A1
SKT-2R-250D
SKT-2R-350A1
SKT-2R-350D
250±20%
350±15%
≤800
≤800
100
100
5
5
5
5
135
135
≥1010
≥1010
<1
<1
Note: Specification are subject to change without notice.
1
KINGTRONICS [ Kingtronics International Company ]
