4mm² is rated roughly 25 to 35A depending on installation method, it may not be fully rated for a 30A trip if it's buried in the wall.
Can you get to the cable anywhere to safely measure?
The generally listed dimensions for 4mm² is 11.9mm x 6.25mm and 6mm² is13.5mm x 7mm.
Can you get to the cable anywhere to safely measure?
The generally listed dimensions for 4mm² is 11.9mm x 6.25mm and 6mm² is13.5mm x 7mm.