ESS31-T datasheet(5/8 Pages) ETAL

5 / 8 page

www.e-t-a.de

Electronic circuit breaker ESS31-T...-DC 24 V

1646

Electronic circuit breaker ESS31-T...-DC 24 V

ESS31-T Signal inputs / outputs (wiring diagrams)

Typical time/current characteristic (Tamb = 25 °C)

ESS31-TC-002-.....

ESS31-TC-001-.....

The auxiliary contacts are shown in OFF or fault condition

without signal input

with signal output f

single singnal, make contact

without signal input

with signal output f

single singnal, break contact

operating condition

13-14 closed

fault condition

13-14 open

operating condition

11-12 open

fault condition

11-12 closed

LINE

LOAD

LINE

LOAD

0V 3

trip time depends

on rated current

(see table 1)

10000

1000

...times rated current

100

0,5

0,1

0,01

max. 1.35 x I

disconnection and

current limitation

typically 1.2 x IN

min. 1.05 x I

The overload trip time is typically 500 ms (e.g. ESS31-T-…-6 A)

The electronic current limitation typically begiins in at 1.2 x IN

This means: under all overload conditions (independent of power

supply and load circuit resistance) typically 1.2 times rated current

is applied until disconnection. The corresponding current limitation

value ILimit depends on the current rating of the device IN.

Without the current limitation getting into effect at typically 1.2 x IN

there would be a much higher overcurrent in the event of an over-

load or short circuit.

Reset of the circuit breaker is only possible approximately 10 sec

after tripping.

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