Frequently Asked Questions
Use a 408/4 - Unswitched Socket, Electric Clock Connection Accessories, Clock Point Recessed Socket 250V 5A - 4 pin.
The plug to suit the 408/3 is a 409/3.
408/3 has 84mm mounting centres so can be mounted on standard clipsal flush box like the 157/1 for example.
The part code is 408/3 - WE
The 438/2 does suit the 492.