SPK Product

Ceramic Gas Tube Surge Arrester
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SPK3R-A

Three Electrode Ceramic Gas Tube Arrester

Specification
Part Number Model A Without leads See Fig.1 SPK3R-90A SPK3R-230A SPK3R-350A
Model B With leads See Fig.2 SPK3R-90B SPK3R-230B SPK3R-350B
DC Sparkover Voltage (L1-E)(L2-E) 100V/s 90V ±20% 230V ±20% 350V ±20%
Impulse Sparkover Voltage (L1-E)(L2-E) 1KV/μs ≤850V ≤700V ≤700V
Insulation Resistance See Note1 ≥10,000MΩ ≥10,000MΩ ≥10,000MΩ
Capacitance 1MHz ≤3.0pF ≤3.0pF ≤3.0pF
DC Holdover Voltage See Note2 ≤52V ≤135V ≤150V
Impulse Life
(L1+L2-E)
10/1000μs
200A
100 times
See Note 3A
100 times
See Note 3B
100 times
See Note 3C
Impulse Discharge Current,8/20μs
(L1+L2-E)
Repeat 10 times
(5 times each polarity)
5kA
See Note 3A
10kA
See Note 3B
5kA
See Note 3C
AC Discharge Current,50Hz
(L1+L2-E)
Respeat 5 times
1sec
5A
See Note 3A
10A
See Note 3B
5A
See Note 3C
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