Surge arrester
B88069X7970B502
T83-A420XF4
3-electrode arrester
Features
Applications
Standard size
Fast response time
High current rating
Stable performance over life
Very low capacitance
High insulation resistance
Reliable failsafe device
RoHS-compatible
Base stations
Line protection
Station protection
Electrical specifications
DC spark-over voltage 1) 2) 3)
420
V
%
V
V
Tolerance
Min.
Max.
±20
336
504
Impulse spark-over voltage 3)
at 100 V/µs - for 99% of measured values
- typical values of distribution
< 850
< 700
V
V
at 1 kV/µs
- for 99% of measured values
- typical values of distribution
< 950
< 850
V
V
Service life
10 operations
1 operation
10 operations [5× (+) & 5× (–)]
1 operation
50 Hz; 1 s 4)
10
A
A
kA
kA
kA
A
50 Hz; 0.18 s (9 cycl.) 4) 40
8/20 µs 4)
8/20 µs 4)
10/350 µs 4)
10
15
2
1 operation
300 operations [150× (+) & 150× (–)] 10/1000 µs 4)
200
3)
Insulation resistance at 100 VDC
> 10
< 1.5
< 0.2
GΩ
pF
µs
Capacitance at 1 MHz 3)
Transverse delay time 5)
Arc voltage at 1 A
Glow to arc transition current
Glow voltage
~ 30
< 1
~ 200
V
A
V
Weight
~ 2
g
Storage temperature
Climatic category (IEC 60068-1)
Marking, red negative
°C
−40 ... +125
40/125/21
420 YY O
420
YY
O
- Nominal voltage
- Year of production
- Non radioactive
Certifications
UL 497B (E163070)
Remarks on next page
PPD AB PD / PPD AB PM
Version: 03 / 2019-08-22
Please read Cautions and warnings and
Page 2 of 7
Important notes at the end of this document.