Help to replace stove wall switch

[aussie1]

I have a heap of electrical work to be done which I will leave to a sparky
but he cannot get here til near Xmas ( a joke heh?) The one job which is
annoying me is the replacement wall switch for the stove. We have just renovated most of the house, and this one switch is hanging out of the
wall and flopping around and is handled daily to switch of stove (safety
precaution, we always turn things off at the wall) and damaging new paint
on the walls. The new replacement switch is a 45 amp switch as opposed to the old one being 32amp. I want to change the old one for the new, after having turned off the power at the fuse box of course, but because the switch is different I can't just swap over.

The cabling to the existing wall switch is the standard grey 3 wire 2.5mm.
The new switch has the following connections:

1. Loop
2. a symbol which looks like an upside down T with 2 small lines under it
3. Line with the number 1
4. Load - single pole with the number 2

any help on the wiring connections much appreciated.

Also, I am assuming that it is quite OK the replace a 32amp with a 45 amp
as this is what the guy at the electrical supplies gave me when I asked for
a stove switch.

Regards
aussie1

[Wood Butcher]

2. a symbol which looks like an upside down T with 2 small lines under it

I don't know what the other connections would go to, but this would be for the earth.

[pedro the swift]

As noted previously, the T symbol is an earth connection.
The LINE is the incoming power and LOAD is the connection to the stove.
Note that wiring should be done by a licensed person only.