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Installations-Handbuch für die CD34/72/15004 41
Anschluß eines Relais oder einer LED
Abbildung 32: Anschluß eines Relais oder einer LED an einen Steuerausgang
Ausgang
+12 Volt
NC NO
C
+12 Volt
R = 820
Ausgang
In VdS-Installationen dürfen nur VdS-anerkannte Relais (RC 900 + RC 813 oder RC 814) verwendet
werden.
Der Widerstand R ist für die Strombegrenzung erforderlich. Für die meisten LEDs ist eine Stromstärke von
ungefähr 15 mA ausreichend. Der Widerstandswert wird folgendermaßen berechnet:
R
V
I
==
=
=
13,8V
15 mA
13,8V 2V
15mA
led
V
787
Aufgerundet beträgt dieser Wert 820 Ohm.
43


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