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A wisely chosen relay with a transistor driving it is more safe and economical even by size, compared to solid state relays. Solid state relays are more bulky and need a heat sink etc depending on the power handling capacity.I am using the relay to switch 230v supply to a device. A transitor gives control to the relay. I feel it is bulkY.
Is there any simple device to control the supply that operated by dc circuits?
A wisely chosen relay with a transistor driving it is more safe and economical even by size, compared to solid state relays. Solid state relays are more bulky and need a heat sink etc depending on the power handling capacity.
Only you need to put a snubber across relay contact. Suchan arrangement is needed in Solidstate also but may not be foolproof.
Suggest that a relay gives a stable service.
Only you need to put a snubber across relay contact. Suchan arrangement is needed in Solidstate also
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A snubber diode is not necessary on a solid state relay only on a mechanical one and even then only if the coil is connected to delicate equipment ie a PC or small electronic circuit.
Or at least that was as I understood it....
If in doubt use a diode certainly wont do any harm. You connect it ....Oh lord here we go ...ANTI PARALLEL across the coil connections.
And there are plenty of compact DC - AC solid state relays not necessarily cheap mind you but plenty of choice.
A snubber diode is not necessary on a solid state relay only on a mechanical one and even then only if the coil is connected to delicate equipment ie a PC or small electronic circuit.
Or at least that was as I understood it....
If in doubt use a diode certainly wont do any harm. You connect it ....Oh lord here we go ...ANTI PARALLEL across the coil connections.
And there are plenty of compact DC - AC solid state relays not necessarily cheap mind you but plenty of choice.