Electric Wiring - KSB UPA Installation & Operating Manual

Table 12: Weight of the water column per 1 metre of the riser
50
2"
Weight [kg] 2
5 Installation at Site
80 100 125
3" 4" 5"
5 8 12

5.2.7 Electric wiring

DANGER
Unqualified personnel connecting extension cables
Installation in a well - electric shock!
▷ The extension cable must be connected by a professional electrician only.
▷ The cable ends must be dry and clean.
DANGER
Freely accessible motor lead ends
Danger of death from electric shock!
▷ In the case of UMA-S 150, UMA-S 200 and UMA-S 250 submersible motors, the
motor lead ends are electrically connected together at the time of supply.
▷ This is a protective measure to prevent touch voltage if the motor is rotated
inadvertently. If an extension cable is connected, transfer this protection to the
extension cable.
DANGER
Earth conductor not properly connected
Danger of death from electric shock!
▷ Never operate the motor without earth conductor.
▷ The earth conductor must be connected by a professional electrician only.
NOTE
The motor lead is selected for submerged operation and must be completely
submerged, including the cable connector.
See order documentation for any other use!
For pump sets installed in VdS-approved sprinkler installations always refer to and
observe the applicable requirements stipulated by VdS (German association of
property insurance companies). In accordance with VdS 2025, the cable must be laid
in such a way that it is protected against short circuit and earth fault.
Submersible motors are supplied fitted with a motor lead. The motor lead has been
extended with a suitably sized extension cable to meet the length required for the
specific installation. Unless otherwise indicated, the motor lead is designed for
submerged operation in water only. To meet this condition the cable connector must
be completely submerged.
Extension cables connected by KSB
If agreed with KSB, the extension cable is supplied connected to the motor lead with
a water-proof cable connector.
▪ Unless otherwise specified in the order documentation, KSB's extension cables
are designed for:
– Being laid freely exposed to air and in contact with surfaces
– A voltage drop along the electric cable of ᅀV ≦ 3 %
UPA / UPA S
Pipe diameter [mm]
Pipe diameter [inch]
150 200 250
6" 8" 10"
18 32 49
300 350 400
-- -- --
72 98 125
31 of 98