Surge arrester

B88069X5690xxxx

a)

2-electrode arrester

EF2500X

KB AB E / KB AB PM

Issue 03 / 2008-01-18

Please read Cautions and warnings and

Page 2 of 4

Important notes at the end of this document.

Features

Applications

Standard size

High follow current capability

Very fast response time

Stable performance over life

Very low capacitance

High insulation resistance

RoHS-compatible

Application with high follow current

Power supply

Electrical specifications

DC spark-over voltage

1) 2)

2500

± 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

< 3700

< 3300

< 4500

< 3700

V

V

V

V

Service life

10 operations

50 Hz, 1 s

2.5

A

1 operation

50 Hz, 0.18 s (9 cycles)

10

A

10 operations

8/20 µs

2.5

kA

1 operation

8/20 µs

2.5

kA

Max. follow current during one voltage half cycle at 50 Hz

200

A

> 10

G

Ω

Capacitance at 1 MHz

< 1.5

pF

Arc voltage at 1 A

Glow to arc transition current

Glow voltage

~ 22

< 0.5

~ 140

V

A

V

Weight

~ 1.5

g

Operation and storage temperature

-40 ... +90

°C

Climatic category (IEC 60068-1)

40/ 90/ 21

Marking, red positive

EF 2500 YY O

EF

- Series

2500

- Nominal voltage

YY

- Year of production

O

- Non radioactive

a)

xxxx = S102 (100 pcs on 5 stripes)

= T502 (500 pcs on tape and reel)

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