Surge arrester B88069X8340B502
3-electrode arrester T83-A250X
KB AB E / KB AB PM Issue 05 / 2006-07-10
Please read Cautions and warnings and Page 2 of 4
Important notes at the end of this document.
Features Applications
Standard size
Fast response time
Very high current rating
Stable performance over life
Very low capacitance
High insulation resistance
RoHS-compatible
Line protection
Station protection
Base stations
Electrical specifications
DC spark-over voltage
1) 2) 4)
250
±20
V
%
Impulse spark-over voltage
4)
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
< 500
< 450
< 650
< 600
V
V
V
V
Nominal impulse discharge current (wave 8/20 µs)
5)
Single impulse discharge current (wave 8/20 µs)
5)
10
15
kA
kA
Nominal alternating discharge current (50 Hz, 1 s)
5)
Alternating discharge current (50 Hz, 9 cycles)
5)
10
40
A
A
Insulation resistance at 100 V
dc
4)
> 10
GΩ
Capacitance at 1 MHz
4)
< 1.5 pF
Transverse delay time
3)
< 0.2 µs
Arc voltage at 1 A
Glow to arc transition current
Glow voltage
~ 35
~ 1
~ 200
V
A
V
Weight ~ 2 g
Operation and storage temperature -40 ... +90 °C
Climatic category (IEC 60068-1) 40/ 90/ 21
Marking, red negative
250 YY O
250 - Nominal voltage
YY - Year of production
O - Non radioactive
1)
At delivery AQL 0.65 level II, DIN ISO 2859
2)
In ionized mode
3)
Test according to ITU-T Rec. K.12
4)
Tip or ring electrode to center electrode
5)
Total current through center electrode, half value through
tip respectively ring electrode.
Terms in accordance with ITU-T Rec. K.12 and DIN 57845/VDE0845
