Website: www.kingtronics.com
Email: info@kingtronics.com
Tel: (852) 8106 7033
Fax: (852) 8106 7099
SKT - Surge Arresters
3-Electrode Ceramic Surge Arrester
■
COMMON DIMENSIONS
Electrical Characteristics
Type
DC
spark-over
voltage
(100V/s)
V
75±25%
90±25%
150±20%
+30
230
-40
Ⅱ
Ⅰ
350±20%
Ⅱ
SKT-3R-470A
SKT-3R-600A
470±20%
600±20%
I
Ⅱ
≤600
≤900
≤700
≤1200
/
100
/
100
5
5
80
≥10
10
<1
≤200
5
5
80
≥10
10
<1
≤200
≤500
≤800
/
100
5
5
80
≥10
10
<1
≤200
Ⅰ
Impulse
spark-over
voltage
(1KV/us)
V
≤600
≤600
≤700
≤800
Impulse
discharge
current
(10/1000us
300times)
A
50
50
100
100
5
5
80
Impulse
discharge
current
(8/20us
10times)
KA
5
5
5
AC
discharge
current
(50Hz 1s 5
times) A
5
5
5
Holdover
Voltage
V
Insulation
resistance
Ω
Capacitance
pF
Transverse
voltage
durationns
SKT-3R-75A
SKT-3R-90A
SKT-3R-105A
/
/
80
≥10
10
≥10
10
≥10
10
<1.5
<1.5
<1
≤200
≤200
≤200
SKT-3R-230A
≥10
10
<1
≤200
SKT-3R-350A
Note: Specification are subject to change without notice.
1
Website: www.kingtronics.com
■
COMMON DIMENSIONS
Email: info@kingtronics.com
Tel: (852) 8106 7033
Fax: (852) 8106 7099
Electrical Characteristics
Type
DC
spark over
voltage
(100V/s)
V
Impulse
spark over
voltage
(1KV/us)
V
Impulse
discharge
current
(10/1000us
300times)
A
50
Impulse
discharge
current
(8/20us
10times)
KA
10
AC
discharge
current
(50Hz 1s 5
times) A
Holdover
Voltage
V
Insulation
resistance
Ω
Capacitance
pF
Transverse
voltage
durationns
SKT-3R-75AL
1
SKT-3R-75AL
2
SKT-3R-75AL
3
SKT-3R-75AL
4
SKT-3R-90AL
1
SKT-3R-90AL
2
SKT-3R-90AL
3
SKT-3R-90AL
4
SKT-3R-150AL
1
SKT-3R-150AL
2
SKT-3R-150AL
3
SKT-3R-150AL
4
SKT-3R-230AL
1
SKT-3R-230AL
2
SKT-3R-230AL
3
SKT-3R-230AL
4
SKT-3R-350AL
1
SKT-3R-350AL
2
SKT-3R-350AL
3
SKT-3R-350AL
4
SKT-3R-470AL
1
SKT-3R-470AL
2
SKT-3R-470AL
3
SKT-3R-470AL
4
SKT-3R-600AL
1
SKT-3R-600AL
2
SKT-3R-600AL
3
SKT-3R-600AL
4
75±25%
≤600
10
/
≥10
10
<1.5
≤200
90±25%
≤600
50
10
10
/
≥10
10
<1.5
≤200
150±20%
+30
230
-40
≤700
100
10
10
80
≥10
10
<1
≤200
Ⅰ
Ⅱ
Ⅰ
≤800
≤500
≤800
≤600
≤900
≤700
100
10
/
100
10
10
135
≥10
10
<1
≤200
/
100
/
10
10
135
≥10
10
<1
≤200
10
135
≥10
10
<1
≤200
350±20%
Ⅱ
Ⅰ
470±20%
Ⅱ
600±20%
≤1200
100
10
10
135
≥10
10
<1
≤200
Note: Specification are subject to change without notice.
2
Website: www.kingtronics.com
Email: info@kingtronics.com
Tel: (852) 8106 7033
Fax: (852) 8106 7099
■
COMMON DIMENSIONS
Electrical Characteristics
Type
DC
spark over
voltage
(100V/s)
V
75±25%
Impulse
spark over
voltage
(1KV/us)
V
≤600
Impulse
discharge
current
(10/1000us
300times)
A
50
Impulse
discharge
current
(8/20us
10times)
KA
10
AC
discharge
current
(50Hz 1s 5
times) A
10
Holdover
Voltage
V
Insulation
resistance
Ω
Capacitance
pF
Transverse
voltage
durationns
SKT-3R-75AF
1
SKT-3R-75AF
2
SKT-3R-75AF
4
SKT-3R-90AF
1
SKT-3R-90AF
2
SKT-3R-90AF
4
SKT-3R-150AF
1
SKT-3R-150AF
2
SKT-3R-150AF
4
SKT-3R-230AF
1
SKT-3R-230AF
2
SKT-3R-230AF
4
SKT-3R-350AF
1
SKT-3R-350AF
2
SKT-3R-350AF
4
SKT-3R-470AF
1
SKT-3R-470AF
2
SKT-3R-470AF
4
SKT-3R-600AF
1
SKT-3R-600AF
2
SKT-3R-600AF
4
/
≥10
<1.5
≤200
90±25%
≤600
50
10
10
/
≥10
<1.5
≤200
150±20%
+30
230
-40
350±20%
Ⅰ
Ⅱ
Ⅰ
Ⅱ
Ⅰ
470±20%
Ⅱ
600±20%
≤700
≤800
≤500
≤800
≤600
≤900
≤700
≤1200
100
100
/
100
/
100
10
10
80
≥10
<1
≤200
10
10
135
≥10
<1
≤200
10
10
135
≥10
<1
≤200
10
/
100
10
10
135
≥10
<1
≤200
10
135
≥10
<1
≤200
Note: Specification are subject to change without notice.
3
Website: www.kingtronics.com
■
COMMON DIMENSIONS
Email: info@kingtronics.com
Tel: (852) 8106 7033
Fax: (852) 8106 7099
Electrical Characteristics
Type
DC
spark-over
voltage
(100V/s)
V
75±25%
90±25%
150±20%
+30
230
-40
350±20%
470±20%
600±20%
Ⅰ
Ⅱ
Ⅰ
Ⅱ
Ⅰ
Ⅱ
Impulse
spark-over
voltage
(1KV/us)
V
≤600
≤600
≤700
≤800
≤500
≤800
≤600
≤900
≤700
≤1200
Impulse
discharge
current
(10/1000us
300times)
A
50
50
100
100
/
100
/
100
/
100
10
10
10
10
135
135
≥10
10
≥10
10
<1
<1
≤200
≤200
Impulse
discharge
current
(8/20us
10times)
KA
10
10
10
10
AC
discharge
current
(50Hz 1s 5
times) A
10
10
10
10
Holdover
Voltage
V
Insulation
resistance
Ω
Capacitance
pF
Transverse
voltage
durationns
SKT 3R-75PF
5
SKT 3R-75PF
7
SKT 3R-90PF
5
SKT 3R-90PF
7
SKT 3R-150PF
5
SKT 3R-150PF
7
SKT 3R-230PF
5
SKT 3R-230PF
7
SKT 3R-350PF
5
SKT 3R-350P
7
SKT 3R-470PF
5
SKT 3R-470PF
7
SKT 3R-600PF
5
SKT 3R-600PF
7
/
/
80
135
≥10
10
≥10
10
≥10
10
≥10
10
≥10
10
<1.5
<1.5
<1
<1
≤200
≤200
≤200
≤200
10
10
135
<1
≤200
Note: Specification are subject to change without notice.
4
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