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Guest urbanmiles

PLS HELP ME WITH THIS SIMPLE COMPUTATION

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Guest urbanmiles

I HAVE THE SETUP BELOW, AND I WANT TO THEORETICALLY COMPUTE (W/O THE USE OF A MULTIMETER) THE
TOTAL CURRENT DRAW AND WATTAGE (POWER CONSUMPTION) OF THE SYSTEM AS A WHOLE ..
I'M REALLY CONFUSED WITH THE DATASHEET OF THE RELAY
so i can't really theoretically measure what i'm looking for ...

i want to know the current draw and wattage whenever the switch is triggered on (the relay being energized)
tnx for the help

post-113614-14279144686517_thumb.png

post-113614-14279144687077_thumb.png

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Why are you connecting a 28VDC LED lamp to 220VAC? It will EXPLODE!
LEDs need DC and they need their current limited by a series resistor or circuit.

The relay is simply three on-off switches that all work at the same time. When it is turned on then the contacts are turned on.
The power consumption of the relay coil is not 9mW, it is 12V x 75mA= 900mW.

The LEDs are not in parallel. When the 220VAC is active then the bottom LED blows up. When the relay turns on then the top LED blows up.

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