I made this circuit to power up an ac appliance using a weak mecahnical switch:
R1 = 1K
U1 = Diac
Q1 = BTB16-800 BW
The appliance connects between OUT and NEUTRAL (not shown).
While testing, I Disconnected LIVE from MT2 of the triac and connected it directly to left end of R1 and to my surprise, the load got powered up. Resistor was heating up as well as expected.
Is this an expected behavior? How can I safeguard my circuit from such accidental connections? Will increasing the value of R1 be enough?