Motors for TPE pumps
TPE E-circulators
11
21
11. Motors for TPE pumps
Motor
The motor fitted on TPE pumps is a totally enclosed,
fan-cooled standard motor with main dimensions and
electrical tolerances to NEMA standards.
Relative humidity: Max. 95 %
Enclosure class: TEFC
Insulation class: F, to IEC 85
Ambient temperature: Max. +104 °F
Motor range
Motor protection
Single-phase motors have integrated, interconnected
thermal switches.
Electrical data
2 pole (3600 rpm)
4 pole (1800 rpm)
* The values apply to the combined efficiency of the motor and variable frequency drive.
hp
Electronic speed controlled motors
2-pole/1 ph 4-pole/1 ph
0.34
MLE
MLE
0.50
0.75
1.0
1.5
MLE is Grundfos motor brands.
The grey-shaded areas indicate non-available motors.
Hp Voltage Ph
NEMA
frame
Service
factor
Full load
eff [%] *
Ins.
class
Full
load
amps
Power
factor
Min/max
speed
[rpm]
0.5 208-230 1 56C 1.0 71.0 F 2.8 - 2.5 0.96 360-3400
0.75 208-230 1 56C 1.0 74.0 F 3.9 - 3.5 0.97 360-3400
1 208-230 1 56C 1.0 76.0 F 5.2 - 4.7 0.97 360-3400
1.5 208-230 1 56C 1.0 77.0 F 7.5 - 6.8 0.97 360-3400
Hp Voltage Ph
NEMA
frame
Service
factor
Full load
eff [%] *
Ins.
class
Full
load
amps
Power
factor
Min/max
speed
[rpm]
0.33 208-230 1 56C 1.0 67.0 F 2 - 1.9 0.94 180-1690
0.5 208-230 1 56C 1.0 70.0 F 2.8 - 2.5 0.96 180-1690
0.75 208-230 1 56C 1.0 72.0 F 4 - 3.70 0.96 180-1690
1 208-230 1 56C 1.0 73.0 F 5.4 - 4.9 0.97 180-1690
E-circulator.book Page 21 Friday, October 7, 2011 4:01 PM
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