The circulator must be connected to an external main switch with a minimum contact distance of 3 mm on all
poles. It is possible to use the earthing or the neutralisation as protection against indirect contact.
It is recommended to install a differential switch to protect the system, which must
have correct dimensions, such as: Class A with adjustable leakage current, selective,
protected against sudden tripping.
The automatic differential switch must be marked with the following two symbols:
The circulator does not require any external motor protection.
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Ensure that the supply voltage and frequency are the same as the values indicated on the electrical
data plate of the circulator.
ENGLISH
Figure 3: Electrical connections (front)