What wires go into L2 and Com ports?

That's strange! I fitted a 2 gang (and therefore 2 way) switch (MK Logic plus) recently. The spiel said that if this was being connected as 1 way, use common and L1. Have MK got the protocol wrong?

Phil

Na, you are both right. A two way switch is a changeover type switch. In one position com is connected to L1 and in the other com is connected to L2. So with a pull switch it makes absolutely no difference which way you wire it so long as you use com plus one of the others (i.e. the only wiring that wont work is using L1 and L2).

With a conventional light switch, you may end up with the switch being "up" for on if you get it back to front, but you can fix that one one of two ways!

Hopefully, having wired the thing as instructed, the switch will be "down for on" when the switch is mounted the right way up!

But which way is the right way up? :-)

I suspect it should be with the word "Top" (as printed on the rear of the switch) uppermost! Also, with these new switches, the commons are in a line at the "bottom" of the module, instead of being nested with alternate common/L1-L2 connections as previously. This all assumes that the manufacturer manages to label the modules correctly of course.

Phil

In the case of a "pull" switch, the only difference is in the case of an isolation switch for, say, an electric shower, where there has to be a mechanical indication of "on" or "off".

These are two-pole high current switches; purely on-off rather than two-way.