In case it may be of use - The Memshield range has been rescued via the take over of the former Holy head site by a company called Kempston Controls. The range includes the relaunch of their RCBO field fit pods.
And they are now type A as well so you can make a modified circuit from an older board compliant. I had to order and fit one a couple of weeks ago. At around £130 they are eye-wateringly expensive though!
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