Struggling to identify AC solenoid suppressors

[mc]

I'm currently working on retrofitting an old CNC milling machine, and am currently working on the tool changer.

All the pneumatic valves on the changer are 230V, and have a suppressor fitted into the DIN connectors. Are these still available, if so what are their proper name, or is newer practice (this mill dates from the late 80s/early 90s) to mount suppressors elsewhere?

I've tried searching for new DIN connectors with built in suppressors, but my searches have drawn a blank, and I suspect I'm searching for the wrong thing.

[IconicPCB]

look for MOVs.

[mc]

Thanks for that.

After searching for that, the penny dropped and I searched for "solenoid DIN plug surge", which found a couple suitable sources.
Seems to be the more common term is Protected/Protective circuit connectors, which turned up far more suitable sources.

As usual, it's all about knowing the correct term to search for!

[Paul Moir]

They're often built into pneumatic valves, so if you're replacing the valves check to see if the replacements have one already.

I often use a TVS rather than a MOV because they're smaller and easier to cram into a DIN connector.

[rvalente]

These?

Wago, Phoenix contact and weidmuller offers similar stuff

http://shop.murrelektronik.com/en/Connection-Technology/Valve-Connectors/