See pictures attached. The mark code for the red transformer is: 4215X167 MN00295631. The little transformer next to the red ones is 5024X045 MN00294479. I've never been lucky finding information about transfomers.

The two black transfomers are: R911317037

This board is fed with 24VDC and 480VAC. However, it controls a 240V/50Hz contactor to activate the main bus voltage. I'm trying to find out how the 240V is generated.

 

Try a support contact to VAC inductors https://www.vacuumschmelze.com/en/news.html
Often they can be a OEM custom part!
Max.

 

Try a support contact to VAC inductors https://www.vacuumschmelze.com/en/news.html
Often they can be a OEM custom part!
Max.

Yes, it seems they are OEM custom parts.