Electrical Connection - KSB MSE Operating Manual

5 Installation at Site

5.4 Electrical connection

DANGER
Unintentional contact with live parts
Danger of death from electric shock!
▷ De-energise the mains connection.
▷ Take steps to ensure that the mains connection cannot be re-energised
unintentionally.
CAUTION
Improper electrical connection
Damage to the control unit / control cabinet!
▷ Check the type of current and voltage of the mains.
▷ For connecting pump power cables with flexible cores, attach wire end sleeves
to the core ends that are to be connected to the control unit.
▷ Observe the wiring diagrams. (ð Section 9.1, Page 19) .
CAUTION
Technical pump data not taken into account
Damage to the control unit!
▷ Connect only pumps with technical data (particularly rated current) that
matches this control unit.
NOTE
Connect the thermal circuit breaker with the corresponding cores of the pump
power cable. On pumps without a thermal circuit breaker a bridge must be inserted
into the control unit.
ü The mains voltage at the site has been verified against the data on the name
plate.
ü The wiring diagram is on hand.
1. Guide the power cables through the corresponding cable glands.
2. Make sure that the sealing elements are properly positioned. Tighten the cable
glands (strain relief).
3. Connect the control unit in accordance with the wiring diagram.
4. Set the motor protection relay to the rated current.
5. For three-phase motors, connect the power cable available on site so as to
ensure a clockwise rotating field.
6. For single-phase AC motors, ensure that phase and neutral are connected
correctly.
MSE/MSD
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