11.4 Ambient temperature
11.4.1 Ambient temperature during storage and
transportation
Minimum: -30 °C.
Maximum: 60 °C.
11.4.2 Ambient temperature during operation
3 x 200-240 V 3 x 380-500 V
Minimum -20 °C -20 °C
Maximum 40 °C 50 °C
The motor can operate with the rated power output,
P2, at 50 °C, but continuous operation at higher
temperatures reduces the expected product life. If the
motor is to operate at ambient temperatures between
50 and 60 °C, select an oversized motor. Contact
Grundfos for further information.
11.5 Operating pressure or test pressure
The pressure test has been made with water
containing anti-corrosive additives at a temperature of
20 °C (~ 68 °F).
Pressure
stage
Operating
pressure
Test pressure
[bar] [MPa] [bar] [MPa]
PN 6 6 0.6 10 1.0
PN 6 / PN 10 10 1.0 15 1.5
PN 16 16 1.6 24 2.4
11.6 Inlet pressure
To ensure optimum and quiet pump operation, the
inlet pressure, system pressure, must be adjusted
correctly. See the table in the Appendix.
For the calculation of specific inlet pressures, contact
the local Grundfos company or see the data booklet
for TP, TPD, TPE, TPED, TPE2, TPE2 D, TPE3 and
TPE3,D on Grundfos Product Center (https://product-
selection.grundfos.com/).
11.7
Electrical data
See sections Technical data, single-phase motors
and Technical data, three-phase motors.
For specific motor data, see the motor nameplate.
11.8
Sound pressure level
See section Sound pressure level.
Related information
34.2 Sound pressure level
11.9
Environment
Non-aggressive and non-explosive atmosphere.
11.10 Installation altitude
Installation altitude is the height above sea level of
the installation site.
Motors installed up to 1000 m above sea level can be
loaded 100 %.
The motors can be installed up to 3500 m above sea
level.
Motors installed more than 1000 m above
sea level must not be fully loaded due to
the low density and consequent low
cooling effect of the air.
0
60
80
90
70
100
500 1000 1500 2000 2500 3000 3500
X
P2 [%]
TM055243
Motor output power in relation to altitude
Pos. Description
X Altitude [m]
In order to maintain the galvanic isolation and ensure
correct clearance according to EN 60664-1:2007, you
must adapt the supply voltage to the altitude:
500
480
460
440
420
380
400
500 2500 35001500
A
B
TM069866
Supply voltage for three-phase motor in relation to
altitude
Pos. Description
A Supply voltage [V]
B Altitude [m]
27
English (GB)
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