T23-A250X datasheet(2/4 Pages) EPCOS

2 / 4 page

Surge arrester

B88069X8840B252

3-electrode arrester

T23-A250X

KB AB E / KB AB PM

Issue 04 / 2007-10-18

Please read Cautions and warnings and

Page 2 of 4

Important notes at the end of this document.

Features

Applications

Standard size

Extremely fast response time

Very high current rating

Stable performance over life

Very low capacitance

High insulation resistance

RoHS-compatible

Line protection

Station protection

Base stations

Electrical specifications

DC spark-over voltage

1) 2) 4)

250

± 20

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

< 500

< 400

< 600

< 550

Service life

10 operations

50 Hz; 1 s

1 operation

50 Hz; 0.18 s (9 cycles)

10 operations [5x (+) & 5x (-)]

8/20 µs

10 operations

8/20 µs

1 operation

8/20 µs

1 operation

10/350 µs

300 operations

10/1000 µs

200

Insulation resistance at 100 Vdc

> 10

Capacitance at 1 MHz

< 1.5

Transverse delay time

< 0.2

µs

Arc voltage at 1 A

Glow to arc transition current

Glow voltage

~ 35

~ 1

~ 200

Weight

~ 2

Operation and storage temperature

-40 ... +90

°C

Climatic category (IEC 60068-1)

40/ 90/ 21

Marking, blue negative

250 YY O

250

- Nominal voltage

- Year of production

- Non radioactive

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