3 phase plug won't fit securely in socket.

[Peterrr]

I have a 3 phase (male) NHP ISOP P5532P plug that fits into a (female) Clipsal 563 540 socket, but won't go in deep enough for the threaded collar to screw on. It only needs to go in another 2-3mm. Hints please?

 

[DefyG]

Probably the socket and plug housing are incompatible if from different manufacturers!

 

[PS Electrics]

I have a 3 phase (male) NHP ISOP P5532P plug that fits into a (female) Clipsal 563 540 socket, but won't go in deep enough for the threaded collar to screw on. It only needs to go in another 2-3mm. Hints please?

Searching shows these both comply to AS/NZS 3123 standard so in theory should be compatible.

Like Defyg said different manufacturers so could be slight tolerance differences.

Can you check the plug with another socket?

I assume you have checked for obvious things like bent pins and obstructions?

 

[Avo Mk8]

You have a 32A plug, but a 40A socket.
The part number for an NHP 40A plug is ISOP S540P, different from the part you quote
They might not be exactly the same?

Edit: I noticed the way the NHP plug is assembled with a click mechanism using a screwdriver slot is neat, but perhaps it hasn't engaged properly.