Surge arrester
B88069X7450****
T60-C350X
3-electrode arrester
Features
Applications
Standard size
Fast response time
High current rating
Stable performance over life
Very low capacitance
High insulation resistance
RoHS-compatible
Branch exchange (MDF)
Line protection
Station protection
Electrical specifications
DC spark-over voltage 1) 2) 3)
350
15/+43
300
V
%
V
V
Tolerance
Min.
Max.
500
Impulse spark-over voltage 3)
at 100 V/µs - for 99% of measured values
- typical values of distribution
< 800
< 770
V
V
at 1 kV/µs
- for 99% of measured values
- typical values of distribution
< 900
< 870
V
V
Service life
10 operations
1 operation
50 Hz; 1 s 4)
20
A
50 Hz; 0.18 s (9 cycl.) 4) 130
A
10 operations [5× (+) & 5× (–)]
1 operation
1 operation
8/20 µs 4)
8/20 µs 4)
10/350 µs 4)
20
30
5
kA
kA
kA
3)
Insulation resistance at 100 VDC
> 10
< 1.5
< 0.2
G
pF
µs
Capacitance at 1 MHz 3)
Transverse delay time 5)
Arc voltage at 1 A
Glow to arc transition current
Glow voltage
~ 35
< 1
~ 200
V
A
V
Weight
~ 3
g
Operation and storage temperature
Climatic category (IEC 60068-1)
Marking, blue negative
°C
40 ... +125
40/125/21
350 YY O
350
YY
O
- Nominal voltage
- Year of production
- Non radioactive
Continued on next page
PPD AB PD / PPD AB PM
2022-02-08
Please read Cautions and warnings and
Page 2 of 6
Important notes at the end of this document.