A double-throw relay contact (change-over) is terminated to Terminal Box marked RELAY-1
on PCB. It is a potential-free contact (dry contact) and either phase wire or neutral wire can
be connected as needed.
Never connect phase wire and neutral wire to the Terminal Box at the same time!!!
5) Precautions
Shut off power before attempting any wiring procedures.
Pro Piezo1 wiring can be performed by authorised company and personnel. Installation and
comissioning can be carried out only by a qualified person acc. to respective Electrical
Equipment Directives and Regulations.
6) Company Contact