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Installation and operating instructions Wilo-Rexa MINI3 19
ƒ Provide a motor protection switch!
The minimum requirement is a thermal relay/motor pro-
tection switch with temperature compensation, differen-
tial trip and reactivation lock according to local regula-
tions.
ƒ Install the mains disconnection device!
Minimum requirement: Main switch with all-pole discon-
nection.
Pump with single-phase AC motor
To connect the pump firmly to the switchgear, cut off the
plug. Carry out connection to a switchgear as follows:
Wire colour Terminal in switchgear
Brown (bn) L (phase)
Blue (bl) N (neutral conductor)
Green/yellow (gn-ye)
Earth (protective earth con-
ductor)
Pump with three-phase AC motor
The pump is suitable for connection to a clockwise rotating
field. Check the rotating field with a rotating-field-testing
device before connection and correct if necessary. CAU-
TION!The pump is not approved for operation with a
counter-clockwise rotating field! Carry out connection to a
switchgear as follows:
Wire colour Terminal in switchgear
Brown (bn) U
Black (bk) V
Blue (bl) W
Green/yellow (gn-ye)
Earth (protective earth con-
ductor)
Adjust the motor protection
Set the motor protection switch to the rated current (see
rating plate).
6 Commissioning
DANGER
Risk of fatal injury due to electrical cur-
rents in accessible basins!
Do not operate the pump if there are persons in
contact with the fluid. In the event of a fault
this may cause death by electric shock! Only
activate the pump when there are no longer any
persons in contact with the fluid.
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