Grundfos CRE Series User Manual

Model K
P2
Maximum line reactor size
[mH]
[kW] [HP] 1750-2200 rpm 3500-4000 rpm
11 15 0.3 -
15 20 0.2 0.2
18.5 25 0.2 0.2
22 30 0.2 0.2
26 35 0.2 0.2
Line reactors are often required for six-pulse variable speed drives. Please observe that the MGE,
MLE utilize a small DC capacitor concept for lower harmonics and exceeding the maximum
inductance may cause resonance between reactor and the MGE, MLE that will reduce the lifetime of
the product.
Short-circuit current
Model K: Suitable for use on a circuit capable of delivering not more than 5000 rms symmetrical amperes, 480
V maximum when protected by RK1, J or T Class fuses, rated 600 V.
Fuses
Fuses used for motor protection must be rated for minimum 600 V.
For fuse sizes, see the section on recommended size of fuses.
3 x 380-480 V, MGE Model K
Motor size
[kW]
Recommended
[A]
Maximum
[A]
Fuse type
11 35 60
RK1, Class J or T UL listed
fuse
15 50 80
RK1, Class J or T UL listed
fuse
18.5 60 80
RK1, Class J or T UL listed
fuse
22 70 80
RK1, Class J or T UL listed
fuse
3 x 400-480 V, MGE Model K
Motor size
[kW]
Recommended
[A]
Maximum
[A]
Fuse type
26 80 80
RK1, Class J or T UL
listed fuse
95
Appendix B

Grundfos CRE Series Specifications

General

Motor Type	Asynchronous
Enclosure Class	IP55
Insulation Class	F
Series	CRE
Protection Class	IP55
Material	Stainless Steel
Applications	Water Supply, Pressure Boosting, Irrigation
Pumped liquid	Clean liquids
Approvals	CE
Voltage	380-415V
Connection Size	DN 32 to DN 100
Efficiency	IE3 Premium Efficiency
Power Supply	3-phase
Liquid Temperature Range	-10°C to +120°C
Temperature Range	-10°C to +120°C