Frigomat TWIN 4 S.03 Manuel D'instruction Et De Maintenance page 69

Attention!
High voltage inside; danger of electrocution.
This plate is applied on the cover of the electrical box
and warns the operator that it must not be removed
for any reason whatsoever, thus avoiding the danger
of electrocution which could be fatal. In this case as
well, maintenance of internal components is reserved
for qualified personnel.
ENGLISH - 6