B88069X5470C253 Datasheet, PDF (1/2 Pages) EPCOS – SURGE ARRESTER 3-electrode arrester

Surge Arrester
3-Electrode-Arrester
Preliminary data
T90-A90X
Ordering code: B88069X5470C253
DC spark-over voltage ^{1) 2) 4)}
Impulse spark-over voltage ⁴⁾
at 100 V/µs - for 99 % of measured values ⁶⁾
- typical values of distribution ⁶⁾
at 1 kV/µs
- for 99 % of measured values ⁶⁾
- typical values of distribution ⁶⁾
Nominal impulse discharge current (wave 8/20 µs) ^{5) 6)}
Nominal alternating discharge current (50 Hz, 1 s) ^{5) 6)}
Insulation resistance at 50 V_dc ⁴⁾
Capacitance at 1 MHz ⁴⁾
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)
Marking, blue
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.
6) _{under test}
Terms in accordance with ITU-T Rec. K.12 and DIN 57845/VDE0845
90
V
± 20
%
< 550
V
< 450
V
< 700
V
< 600
V
5
kA
5
A
>1
GΩ
< 1.5
pF
< 0.2
µs
~ 10
V
~1
A
~ 60
V
~ 0.8
g
-40 ... +90
°C
40/ 90/ 21
90 YY O
90
- Nominal voltage
YY
- Year of production
O
- Non radioactive
AB E / AB PM
Page 1 of 2
Issue 02, 28.05.2002