Unknown Connector - help please?

[keelbolt]

I need to disconnect a bathroom ceiling light - removing the single brown, yellow, blue with black casing - , but I've never come across a connector like this one. I thought it might be a case of lifting each of the tabs, but I just can't figure out how to release these three leads. Could someone please advise?
Thanks

 

[AndyPRK]

Press down on the panio keys marked L N

 

[pete01]

I think you need to push a small screwdriver into the hole and it releases the catch the you pull the wire out.

If you mean the other side you just push it down.

Power off first obviously