Technical Data; Enclosure; Operating Conditions; Mechanical Data - Grundfos CUE Series Installation And Operating Instructions Manual

12. Technical data

12.1 Enclosure

The individual CUE cabinet sizes are characterised by their
enclosures. The table shows the relationship of enclosure class
and enclosure type.
Example:
Read from the nameplate:
• Supply voltage = 3 x 380-500 V.
• Typical shaft power = 1.5 kW (2 hp).
• Enclosure class = IP20.
The table shows that the CUE enclosure is A2.
Typical shaft
power
1 x 200-240 V
P2
[kW] [hp] IP20
0.55 0.75
0.75 1
1.1 1.5 A3
1.5 2
2.2 3
3 4
3.7 5
4 5
5.5 7.5
7.5 10
11 15
15 20
18.5 25
22 30
30 40
37 50
45 60
55 75
75 100
90 125

12.2 Operating conditions

Relative humidity
Ambient temperature
Average ambient temperature over 24 hours
Minimum ambient temperature at full
operation
Minimum ambient temperature at reduced
operation
Temperature during storage and transport
Storage duration
Maximum altitude above sea level without
performance reduction
Maximum altitude above sea level with
performance reduction
CUE comes in a packaging which is not suitable for
outdoor storage.
3 x 200-240 V
IP21 IP55 IP20 IP55
A5
A2
B1 B1
A3
B1 B1
B2 B2 B3
B4
C3
C4
5-95 % RH
Max. 50 °C
(122 °F)
Max. 45 °C
(113 °F)
0 °C (32 °F)
-10 °C (14 °F)
-25 to 65 °C (-13
to 149 °F)
Max. 6 months
1000 m (3280 ft)
3000 m (9840 ft)
Enclosure
3 x 380-500 V
IP20 IP55
A4 A2 A4
A5
A2 A4
A3 A5
B1
B2 B3 B1
C1
B2
B4
C2
C1
C3
C4 C2

12.3 Mechanical data

12.3.1 Cable gland
Select standard gland holes for CUE frequency converters used
outside USA and Canada.
Select imperial gland holes for CUE frequency converters used
inside USA and Canada.
Enclosure
A3 IP20/21 / NEMA type 1
A4 IP55 / NEMA type 12
A5 IP55 / NEMA type 12
B1 IP21 / NEMA type 1
B1 IP55 / NEMA type 12
B2 IP21 / NEMA type 1 and
B2 IP55 / NEMA type 12
3 x 525-600 V 3 x 525-690 V
IP20 IP55 IP21
A3 A5
A3 A5
B2
C2
Standard gland Imperial gland
holes holes
3 x 22.5 (1/2") 3 x 22.5 (1/2")
3 x 28.4 (3/4") 3 x 28.4 (3/4")
1 x 22.5 (1/2") 1 x 22.5 (1/2")
3 x 28.4 (3/4") 3 x 28.4 (3/4")
6 x 26.3 6 x 28.4 (3/4")
2 x 22.5 (1/2") 2 x 22.5 (1/2")
3 x 37.2 3 x 34.7 (1")
2 x 21.5 2 x 22.5 (1/2")
1 x 26.3 1 x 28.4 (3/4")
3 x 33.1 3 x 34.7 (1")
1 x 21.5 1 x 22.5 (1/2")
1 x 26.3 1 x 28.4 (3/4")
1 x 33.1 1 x 34.7 (1")
2 x 42.9 2 x 44.2 (1 1/4")
IP55
B2
C2
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