Related information
1.1 Related instructions
6.10 Signal relays
8.7 Grundfos Eye
13. Technical data
13.1 Operating conditions
13.1.1 Installation altitude
The installation altitude is the height above sea level
of the installation site.
Products installed up to 1000 m above sea level can
be loaded 100 %.
The motors can be installed up to 3500 m above sea
level.
Products 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.
The motor output power (P2) in relation to the altitude
above sea level is shown in the graph.
0
60
80
90
70
100
P2[%]
500 1000 1500 2000 2500 3000 3500
X
TM085127
Pos. Description
P2 Motor output power [%]
X Altitude [m]
13.1.2 Maximum number of starts and stops
The number of starts and stops via the power supply
must not exceed ten times per hour.
When switched on via the power supply,
the product starts after approximately 5
seconds.
If a higher number of start and stops are required,
use a digital input for external start and stop when
starting and stopping the product or use the Safe
Torque Off (STO) function.
When started via an external on and off
switch, the product starts immediately.
13.1.3 Ambient temperature
13.1.3.1 Ambient temperature during storage and
transportation
Description Temperature
Minimum -30 °C
Maximum 60 °C
13.1.3.2 Ambient temperature during operation
Model K
Description 3 × 380-480 V
Minimum -20 °C
Maximum
50 °C
13)
13)
26 kW MGE motors are rated for a maximum value of
40 °C.
13.1.4 Humidity
Description Percentage
Maximum humidity (non-condensing) 95 %
If the humidity is constantly high and above 85 %,
open the drain holes in the drive-end flange to vent
the motor.
If you install the motor in moist
surroundings or areas with high humidity,
ensure that the bottom drain hole is open.
As a result, the motor becomes self-
venting, allowing water and humid air to
escape. When you open the drain hole,
the enclosure class of the motor will be
lower than standard.
13.1.5 Pollution degree
The product is approved for Pollution degree 3 rating.
13.1.6
Turbine operation
Do not force the product to run at a higher
speed than the maximum speed stated on
the nameplate.
83
English (GB)
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