Surge arrester

B88069X4630xxxx

a)

2-electrode arrester

M50-A350X

KB AB E / KB AB PM

Issue 03 / 2007-04-19

Please read Cautions and warnings and

Page 2 of 4

Important notes at the end of this document.

Features

Applications

Very small size

High current rating

Very fast response time

Stable performance over life

Very low capacitance

High insulation resistance

RoHS-compatible

Branch exchange

Line protection

Subscriber protection

Alarm system

Electrical specifications

DC spark-over voltage

1) 2)

350

± 20

V

%

Impulse spark-over voltage

at 100 V/µs

- for 99 % of measured values

- typical values of distribution

at 1 kV/µs

- for 99 % of measured values

- typical values of distribution

< 800

< 750

< 900

< 800

V

V

V

V

Service life

10 operations

50 Hz, 1 s

5

A

1 operation

50 Hz, 0.18 s (9 cycles)

10

A

10 operations

8/20 µs

5

kA

1 operation

8/20 µs

10

kA

1 operation

10/350 µs

0.5

kA

> 1

G

Ω

Capacitance at 1 MHz

< 1

pF

Arc voltage at 1 A

Glow to arc transition current

Glow voltage

~ 15

~ 0.5

~ 60

V

A

V

Weight

~ 1

g

Operation and storage temperature

-40 ... +90

°C

Climatic category (IEC 60068-1)

40/ 90/ 21

Marking, blue negative

350 YY O

350

- Nominal voltage

YY

- Year of production

O

- Non radioactive

a)

xxxx = C102 (container with 100 pcs.)

= C253 (container with 2500 pcs.)

1)

At delivery AQL 0.65 level II, DIN ISO 2859

2)

In ionized mode

Terms in accordance with ITU-T Rec. K.12 and DIN 57845/VDE0845