Frequently Asked Questions
The 438/2 does suit the 492.
No, the largest rated version of a 438 extension socket is the 438/20 which is 20A.
The suitable sockets for 492-WE are :
438/2 - extension socket
402-WE - surface socket
The part number would be 248/20 which is a combination screw head 20MM 3/16 BSW.
The 238/25 has 1 x 25 mm spout & 2 x25 mm conduit entries.