I made am making a relay module based on the EC2-3NU relay and just wanted to ask if there was any error in either my circuit or my perfboard layout
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\$\begingroup\$ the transistor emitter should be connected to ground \$\endgroup\$– jsotolaCommented Oct 31, 2019 at 4:25
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\$\begingroup\$ You should also verify that the relay contacts are properly rated for the current you expect the pump to use. A pump will often be an "inductive load". \$\endgroup\$– NeddCommented Oct 31, 2019 at 6:52
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\$\begingroup\$ Award winning schematic diagram drawing. just saying. \$\endgroup\$– GeneCodeCommented Oct 31, 2019 at 7:17
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\$\begingroup\$ How do you verify if it can handle Inductive loads? I read the data sheet and am 75% sure it says it can handle 250vac \$\endgroup\$– M4LCommented Oct 31, 2019 at 13:54
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1 Answer
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That LED you have in series with the transistor emitter in your drawing will ruin everything (by taking too much voltage), but it doesn't appear to be present on the circuit board, so that should work
If you want to light a led when the relay is on one way is to put it and its series resistor in parallel with the relay coil.
answered Oct 31, 2019 at 4:02