Surge Arrester
T90-A170XFSMD
3-Electrode-Arrester
Ordering code:
B88069X5910T902
KB AB E / KB AB PM
Issue 02, 21.07.2004
Page 1 of 2
DC spark-over voltage
1) 2) 4)
170
18
V
%
Impulse spark-over voltage
4)
at 100 V/s - for 99 % of measured values
- typical values of distribution
at 1 kV/s
- for 99 % of measured values
- typical values of distribution
< 550
< 450
< 700
< 600
V
V
V
V
Nominal impulse discharge current (wave 8/20 s)
5)
5
kA
Nominal alternating discharge current (50 Hz, 1 s)
5)
5 A
Insulation resistance at 100 V
dc
4)
> 1
G
Capacitance at 1 MHz
4)
< 1.5
pF
Transverse delay time
3)
<
0.2
s
Arc voltage at 1 A
Glow to arc transition current
Glow voltage
~ 10
~ 1
~ 60
V
A
V
Weight
~ 0,8
g
Storage temperature
-40 ... +90
C
Climatic category (IEC 60068-1)
40/ 90/ 21
Marking, blue
170 YY O
170
- 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.
6)
Total current through center electrode, same value through
tip respectively ring electrode
Terms in accordance with ITU-T Rec. K.12 and DIN 57845/VDE0845
The arrester failsafe mechanism contains a insulating foil with a melting
temperature of 260 C.
Arrester fail safe works at temperatures > 260 C. The arrester has to be
fixed mechanically, if the arrester is contacted by soldering and if the solder
temperature is less than 260 C.
Surge Arrester
T90-A170XFSMD
3-Electrode-Arrester
Ordering code:
B88069X5910T902
EPCOS AG 2002. Reproduction, publication and dissemination of this data sheet, enclosures hereto and the information
contained therein without EPCOS' prior express consent is prohibited.
Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and
Electronics Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers' Association), unless
otherwise agreed.
KB AB E / KB AB PM
Issue 02, 21.07.2004
Page 2 of 2
Not to scale
Dimensions in mm
Non controlled document
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