Grundfos ALLDOS KM 251 - Sound Pressure Level; Degree of Protection; Mains Voltage; Ambient and Operating Conditions

KM 251 en
8 15.720148-V1.0
Maximum suction height * [m] for media with a viscosity similar to water
*applies to a filled dosing head
Maximum suction height [m] for media with maximum permissible viscosity
1.2.5 Sound Pressure Level
1.2.6 Degree of Protection
Depending on the motor variant that is selected, see type plate of the motor.
The specified degree of protection can only be ensured, if the mains cable is connected
with the same degree of protection.
1.2.7 Mains Voltage
Power supply for AC voltage
max. permissible mains impedance
(0.084 + j 0.084) Ohm (testing according to DIN EN 61000-3-11)
these details refer to 50 Hz
1.2.8 Ambient and Operating Conditions
Type
Singlepump Doublepump
Suction height
max. [m WS]
251-2,4 251-2,4/2
1
251-5 251-5/2
251-13 251-13/2
251-19 251-19/2
251-24 251-24/2
251-2,3 251-2,3/2
251-4,9 251-4,9/2
251-12 251-12/2
251-18 251-18/2
251-23 251-23/2
251-2,2 251-2,2/2
251-4,5 251-4,5/2
251-11 251-11/2
251-17 251-17/2
251-21 251-21/2
Type [m]
KM 251 flooded suction
Type
KM 251 55 ± 5 dB (A), testing according to DIN 45635-01-KL3
Nominal voltage Deviation from the nominal value
230 / 400 V ± 10 %
240 / 415 V ± 10 %
115 V ± 10 %
Permissible ambient
temperature
0 °C to + 40 °C (for an installation height up to 1000 m over NN)
Permissible
storage temperature
- 20 °C to + 70 °C
Permissible humidity relative humidity: 70% at 40 °C, 90% at 35 °C