Grundfos NBE Series - 11.3.3 Enclosure class; 11.3.4 Insulation class; 11.3.5 Standby power consumption; 11.3.6 Cable entry sizes

11.3.3 Enclosure class
Motor
Standard: TEFC
Variable Frequency Drive
The enclosure of 20 - 30 hp MLE motors is approved for NEMA
type 12.
15 hp and smaller MLE motors are approved for NEMA type 3.
The NEMA rating can be found on the product 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
11.3.4 Insulation class
311 °F (155 °C).
11.3.5 Standby power consumption
5-10 W.
11.3.6 Cable entry sizes
Model J
Number and size of cable entries
Motor
[hp]
Supply voltage
Number and size of
cable entries
3 3 x 200-240 V, 60 Hz 5 x 1/2" NPT
5
3 x 200-240 V, 60 Hz 5 x 1/2" NPT
3 x 440-480 V, 60 Hz 5 x 1/2" NPT
7 1/2
3 x 200-240 V, 60 Hz
1 x 3/4" NPT
& 5 x 1/2" NPT
3 x 440-480 V, 60 Hz 5 x 1/2" NPT
10 3 x 440-480 V, 60 Hz
1 x 3/4" NPT
& 5 x 1/2" NPT
15 3 x 440-480 V, 60 Hz
1 x 3/4" NPT
& 5 x 1/2" NPT
Model K
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"
11.3.7 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
Blind plugs:
M20 0.7 - 1.1
½" NPT 5.9 - 7.4
73
English (US)