Xylem LOWARA Sekamatik 12MK7 Installation, Operation And Maintenance Manual page 10

No.
1 Type description
2 Serial number
3 Impeller diameter
4 Temperature of medium
5 Immersion depth
6 Weight
7 Hmax (delivery head max)
8 Hmin (delivery head min)
9 Qmax (delivery volume max)
13 Build year
14 Motor type
15 IE Marking
16 Frequency
17 Voltage
18 Nominal current
19 Motor RPM
20 Power P1
21 Cos phi
22 Insulation class
23 Power P2
24 Start condenser
25 Operating condenser
26 Protection class
27 Operating class
28 Part number
3.3.2. Motor
The motor consists of an engine block and the engine shaft with the impeller assembly. The circuit for power
supply is designed for the maximal mechanical performance according to the characteristics or the nameplate of
the pump. The cable inlets as well as the circuit are sealed resistant to jet water towards the pumped medium.
The shaft bearing is carried out by means of robust, maintenance-free and permanently lubricated antifriction
bearings.
General motor nameplate data
Operating mode
Permitted medium temperature
Insulation class
Protection class
Cable length
Voltage
3.3.3. Monitoring devices
Temperature sensor
All pumps in alternating current version are provided with a temperature sensor set in the motor winding, which
switches the motor off in the event of overheating of the winding.
Checking direction of rotation
No check is required for single-handed motors, since these always run in the correct direction.
Three-phase motors have the correct direction of rotating if connected to an anti-clockwise rotating field (U, V, W -
> L1, L3, L2). For smaller pumps the check can be carried out by observation of the start-jerk. For this, place the
pump vertically onto the floor, slightly onto the edge and switch on for a short time. When seen from above, the
pump rebounds slightly clockwise in correct direction of rotation.
The direction of rotation is correct if the pump moves clockwise, since the motor starts anti-clockwise when seen
from above.
10
1 Ph 3 Ph
Type description
Serial number
Impeller diameter
Temperature of medium
Immersion depth
Weight
Hmax (delivery head max)
Hmin (delivery head min)
Qmax (delivery volume max)
Build year
Motor type
IE-Marking
Frequency
Voltage – 3-phase
Nominal current 3-phase
Motor RPM
Voltage – Star connection
Nominal current Star connection
Insulation class
Power P1
Cos phi
Protection class
Power P2
Operating class
Part number
S3 40%
35°C, short-term 60°C
F
IP68
10 meters
230V / 1Ph / 50Hz