adrianbodor
Member
i have circuit schematic with uses a 555 timer powered at 12V to operate a relay.
I want to change the switch for my amp but this switch is rated @1A max so i cannot use directly because the amp draw almost 5 amps from mains, but if I use the circuit iìm a little confuse by the relay, i never worked with relays before.
I see that relays are given in catalogs with voltage coil specification and contacts max current something like 12V/2A.
My circuit is powered by a 12 VDC supply so relay coil must be 12V. Can it be higher voltage level, say 24V? On the other hand if contacts are 10 A rated current can i use mains live and neutral if relay is DPDT?
I want to be sure before building this circuit, not to burn the whole project
Tommorrow i'll post the schematic, it has also 2 LED's to indicate on/off status
I want to change the switch for my amp but this switch is rated @1A max so i cannot use directly because the amp draw almost 5 amps from mains, but if I use the circuit iìm a little confuse by the relay, i never worked with relays before.
I see that relays are given in catalogs with voltage coil specification and contacts max current something like 12V/2A.
My circuit is powered by a 12 VDC supply so relay coil must be 12V. Can it be higher voltage level, say 24V? On the other hand if contacts are 10 A rated current can i use mains live and neutral if relay is DPDT?
I want to be sure before building this circuit, not to burn the whole project
Tommorrow i'll post the schematic, it has also 2 LED's to indicate on/off status