4" 3-Phase NBS4 Motors
4" 3-Phase NBS4 Motors
Three phase 4" submersible motors for use in wells with diameters equal to or greater than 4".
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Product advantages
- Stator in oil
- Cable material compliant with drinking water standards (with relative inspection)
- Sand protection and mechanical seal to allow for optimal operation even in the presence of sand in the well
- Excellent efficiency and low operating costs
- All motors are pre-filled with liquid and 100 % tested
Techincal Specifications
- Power range: 0.37 – 7.5 kW
- 4’’ NEMA flange
- Protection rating: IP68
- Number of starts per hour: max. 30
- Vertical and horizontal operation (prior authorisation).
- Rated voltage: 210-220-230 V/50 Hz; 380-415 V/50 Hz; 460 V/60 Hz
- Voltage tolerance: ± 10 %
- Motor protection: thermal relays in compliance with EN 60947-4-1, trip class 10 or 10A, trip time < 10 s. at 5 x IN
- Insulation class: F
- Ambience temperature: 30 °C
- Cable dimensions: 4×1.5 mm2
- Standard motor cable lenght:
- 0,37 - 2,2kW: 1,5m
- 3,0 - 5,5kW: 2,5m
- 7,5kW: 3,5m
- Cooling flow rate: min. 0,08 m/sec.
- Water pH: 6.5-8
- Thrust load: 1500 N, 2500 N, 4500 N(K), 6500 N(K)
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Motor Model Numbers
PN
[kW]UN
[V]Model Number Type Down Thrust 0.37 380/415 V 274 761 1040 NBS4 050T 1500N 0.55 274 762 1040 NBS4 075T 1500N 0.75 274 763 1040 NBS4 100T 1500N 1.1 274 724 1040 NBS4 150T 2500N 1.5 274 725 1040 NBS4 200T 2500N 2.2 274 726 1040 NBS4 300T 2500N 3 274 764 4140 NBS4 400T 2500N 4 274 765 4140 NBS4 550T 2500N 5.5 274 728 4140 NBS4 750T 2500N Motor Model Numbers HT Version
PN
[kW]UN
[V]Model Number Type Down Thrust 2.2 380/415V 274 726 1140 NBS4K 300T 4500N 3 274 764 4040 NBS4K 400T 4500N 4 274 765 4040 NBS4K 550T 4500N 5.5 274 728 4040 NBS4K 750T 4500N 7.5 274 729 4040 NBS4K 1000T 4500N Perfomance Data 380-400-415 V 50 Hz
Power Voltage
[V]RIA R.p.m.
Min-1Power Factor
cosϕkW HP 50 75 100 0.37 0.5 380 1.35 2790 0.69 0.77 0.83 400 1.35 2820 0.64 0.73 0.79 415 1.35 2835 0.61 0.7 0.76 0.55 0.75 380 1.85 2800 0.65 0.75 0.83 400 1.85 2830 0.6 0.7 0.78 415 1.9 2850 0.55 0.66 0.75 0.75 1 380 2.2 2810 0.64 0.75 0.82 400 2.2 2835 0.58 0.7 0.78 415 2.25 2850 0.54 0.65 0.74 1.1 1.5 380 3 2800 0.64 0.76 0.83 400 3 2830 0.6 0.71 0.79 415 3 2845 0.55 0.67 0.75 1.5 2 380 4 2800 0.6 0.73 0.82 400 4.1 2825 0.53 0.66 0.76 415 4.3 2840 0.48 0.61 0.71 2.2 3 380 5.5 2800 0.63 0.76 0.83 400 5.6 2825 0.56 0.69 0.78 415 5.7 2840 0.5 0.64 0.73 3 4 380 7.4 2780 0.59 0.73 0.83 400 7.5 2810 0.51 0.66 0.78 415 7.9 2825 0.47 0.6 0.72 4 5,5 380 9.6 2800 0.57 0.72 0.82 400 9.8 2820 0.5 0.64 0.77 415 10.3 2835 0.45
0.590.71 5.5 7,5 380 12.6 2825 0.63 0.77 0.86 400 12.5 2845 0.55 0.71 0.82 415 12.8 2860 0.5 0.65 0.78 7.5 10 380 16.9 281 0.65 0.79 0.87 400 16.9 2835 0.57 0.72 0.83 415 17.3 2850 0.51 0.66 0.77 -
