Zanussi ZKT 651 DX Installation And Operating Instructions Manual page 24

A device must be provided in the electrical installation which allows the ap-
pliance to be disconnected from the mains at all poles with a contact open-
ing width of at least 3 mm.
Suitable isolation devices include line protecting cut-outs, fuses (screw type
fuses are to be removed from the holder), earth leakage trips and contac-
tors.
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