I would like to made a relay tester using 12v battery to test the relay is in function or not
As a result I need a dc to dc converter ic .Is it possible to help??Is there any IC chip available as a converter
mechie said:Are you sure the relay coil requires 55w (0.5A) ?
This must be a BIG relay !
Are you sure this isn't the switching capacity of the contacts?
A 110vDC coil isn't common outside industry but I know they exist - closer to a single watt though.
Make sure you are looking at the coil rating, not the contact rating.