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Surge arrester
3-electrode arrester
Features
Standard size
Extremely fast response time
Very high current rating
Stable performance over life
Very low capacitance
High insulation resistance
RoHS-compatible
Electrical specifications
Applications
Line protection
Station protection
Base stations
B88069X8920B252
T21-A230X
DC spark-over voltage 1) 2) 4)
Impulse spark-over voltage 4)
at 100 V/μs - for 99 % of measured values
- typical values of distribution
230
± 20
< 400
< 350
V
%
V
V
at 1 kV/μs
- for 99 % of measured values
- typical values of distribution
< 500
< 450
V
V
Service life
10 operations
1 operation
10 operations [5x (+) & 5x (-)]
1 operation
1 operation
300 operations
Insulation resistance at 100 V dc 4)
50 Hz; 1 s 5)
50 Hz; 0.18 s (9 cycles) 5)
8/20 μs 5)
8/20 μs 5)
10/350 μs 5)
10/1000 μs 5)
10
50
20
25
5
200
> 10
A
A
kA
kA
kA
A
G Ω
Capacitance at 1 MHz
4)
< 1.5
pF
Transverse delay time 3)
Arc voltage at 1 A
Glow to arc transition current
Glow voltage
Weight
Operation and storage temperature
Climatic category (IEC 60068-1)
< 0.2
~ 35
~1
~ 200
~2
-40 ... +90
40/ 90/ 21
μs
V
A
V
g
°C
Marking, blue negative
230 YY O
KB AB E / KB AB PM
230
YY
O
- Nominal voltage
- Year of production
- Non radioactive
Issue 04 / 2007-10-10
Please read Cautions and warnings and
Important notes at the end of this document.
Page 2 of 4
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