14.4.2 EMC (electromagnetic compatibility)
Standard used: EN 61800-3.
The table below shows the emission category of the motor.
C1 fulfils the requirements for residential areas.
Model K: This equipment complies with IEC 61000-3-12
provided that the short-circuit power S
SC
is greater than or
equal to the respective value described in the table below
at the interface point between the user's supply and the
public system. It is the responsibility of the installer or user
of the equipment to ensure, by consultation with the
distribution network operator if necessary, that the
equipment is connected only to a supply with a short-
circuit power S
SC
greater than or equal to the respective
value described in the table below.
3 × 440-480 V, 60 Hz, Model K
Speed
[rpm]
Power P2
[HP]
Supply voltage
[V]
Short-circuit power
[mVA]
2900-4000
20 3 × 440-480 4.6
25 3 × 440-480 5.8
30 3 × 440-480 6.6
C2 fulfils the requirements for residential areas if the system is
operated and installed by qualified persons.
C3 fulfils the requirements for industrial areas.
In a residential environment, this product may cause radio
interference in which case supplementary mitigation
measures may be required.
Model K
Motor
[HP]
Emission category
2900-4000 rpm 4000-5900 rpm
20
C2/C3
14)
-
25
C2/C3
14)
-
30
C2/C3
14)
-
14)
Depending on product hardware configuration.
Immunity: The motor fulfils the requirements for industrial areas.
Contact Grundfos for further information.
14.4.3 Enclosure class
Motor
Standard: TEFC
Optional: IP66
Variable Frequency Drive
The enclosure of 20 - 30 hp MLE motors is approved for NEMA
type 2 and 12.
The NEMA rating can be found on the product's nameplate:
INPUT OUTPUT Variant
V
Hz
A
P2:
PB:
FM:
HMI:
CIM:
kW
rpm
%
n:
PDS Eff
xxxv
:
Made in Hungary
98100448
IE5
IES2
Type:
P.N.:
P.C.:
DE: Env.Type:
PF:
TEFC
CL:
Tamb:
-V
kg
NDE:
Wt:
˚C
DK - 8850 - Bjerringbro - Denmark
TM084777
14.4.4 Insulation class
311 °F (155 °C).
14.4.5 Standby power consumption
5-10 W.
14.4.6
Cable entry sizes
Number and size of cable entries
Motor
[HP]
Supply voltage
Number and size of
cable entries
20-30 3 x 440-480 V, 60 Hz
1 x NPT 1"
6 x NPT 1/2"
14.4.7 Torques
Torques for terminals
Terminal
Recommended
torque
[ft⋅lb]
L1, L2, L3 1.6
PE 4.4
NC, C1, C2, NO 0.4
DI1, DI2, DI3, DI4, AI1, AI2, AI3, AO1,
PT1, PT2, LT1,
LT2, GND, 24V, 5V, TX, RX, A, Y, B, S24,
ST1, ST2
0.4
Torques for other parts
Part designation
Recommended
torque
[ft⋅lb]
Control box, upper part 4.8 - 5.2
Cover for power supply 0.7 - 1
66
English (US)
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