Certified Design?

[Rickers]

Hi there, looking for some advice regarding CoC completion following a mod to an industrial food tray sealer.

Called to a job on a Chinese made rotary food tray sealer with a smell of burning. Single phase machine, pretty small at 4A max draw. Turns out main control board had burnt out, is well beyond repair with no spares and no supplier/ importer back-up. To bring it back to life I replaced the toasted relay style board with a Siemens Logo mini PLC along with a “Piltz” style relay to meet our safety standards. All cabling also replaced as original non compliant wrt sizing and colour.

Now for the question; on the CoC form it asks whether a “certified design” has been used. I have never filled in this box before and I’m wondering whether the work undertaken by me is a “design” and if it is, am I the certifier?

Thanks in advance for any advice.

[gregmcc]

the food tray sealer is an appliance, not part of the installation. No certified design needed. An ESC would be required to confirm it's electrical safety

[AlecK]

Unless it's plugged in; in which case ESC not needed.
ESCs are for things - from equipment (accessories, appliances, etc) up to part or even complete installations - being connected to supply.
Certainly no CoC needed; CoCs are for PEW done on installations.

[Rickers]

Thanks gents for the advice. The equipment is plug in.

I get the logic regarding this equipment being an appliance , but I must admit that given that I have pretty much rewired the whole thing I’m surprised that only an ESC is required.

Thanks again for educating me.

[AlecK]

ESR 90 applies.
Test i.a.w. "5762"