Surge Arrester A81-A250XSMD
2-Electrode-Arrester Ordering code: B88069X1520T352
AB E / AB PM Issue 01, 27.10.2003
Page 1 of 2
DC spark-over voltage
1)
250
± 20
V
%
Impulse spark-over voltage
at 100 V/µs - for 99 % of measured values
- typical values of distribution
at 1 kV/µs - for 99 % of measured values
- typical values of distribution
< 550
< 500
< 700
< 650
V
V
V
V
Nominal impulse discharge current (wave 8/20 µs)
Single impulse discharge current (wave 8/20 µs)
20
25
kA
kA
Nominal alternating discharge current (50 Hz, 1 s)
Alternating discharge current (50 Hz, 9 cycles)
10
100
A
A
Insulation resistance at 100 V
dc
> 10
G
Ω
Capacitance at 1 MHz < 1.5 pF
Arc voltage at 1 A
Glow to arc transition current
Glow voltage
~ 15
~ 0.5
~ 60
V
A
V
Weight ~ 1.5 g
Operation and storage temperature -40 ... +90 °C
Climatic category (IEC 60068-1) 40/ 90/ 21
Marking, blue
250 YY O
250 - Nominal voltage
YY - Year of production
O - Non radioactive
1)
At delivery AQL 0.65 level II, DIN ISO 2859
Terms in accordance with ITU-T Rec. K.12 and DIN 57845/VDE0845
