I've got a 12V relay (Goodsky MI-SS-112L) that will switch a mains circuit, and I understand the basic principles. But, never having used one before, I do have a few questions:
This does not label the five pins, and I haven't been able to Google it to produce a diagram, so I've drawn my own. Can anyone confirm whether I've got the pins right?
I'd like to find a socket for it, as it seems much easier to solder to a socket and allow the relay to be replaced in future if necessary, but what socket should I get for this 5-pin relay?
I've seen descriptions of the use of a protection diode across the coil of a relay; my circuit will involve two relays: the first will latch and switch a 12V supply to a second relay, which in turn will switch a mains supply. The first relay already has a protection diode fitted, and the circuit has been put together elsewhere, but I have to connect the second relay to switch the mains. Does this relay also need a protection diode?
You can tell I'm a newbie, can't you?