4" 3-Phase NBS4

4" 3-Phase NBS4

Three phase 4" submersible motors for use in wells with diameters equal to or greater than 4".

Product Info
Ordering / Performance
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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
    • Cooling flow rate: min. 8 cm/sec.
    • Water pH: 6.5-8
    • Thrust load: 1500 N, 2500 N, 4500 N(K), 6500 N(K)
  • Motor Model Numbers

    PN
    [kW]
    UN
    [V]
    Model NumberTypeDown Thrust
    0.37380/415 V274 761 1040NBS4 050T1500N
    0.55274 762 1040NBS4 075T1500N
    0.75274 763 1040NBS4 100T1500N
    1.1274 724 1040NBS4 150T2500N
    1.5274 725 1040NBS4 200T2500N
    2.2274 726 1040NBS4 300T2500N
    3274 764 4140NBS4 400T2500N
    4274 765 4140NBS4 550T2500N
    5.5274 728 4140NBS4 750T2500N

    Motor Model Numbers HT Version

    PN
    [kW]
    UN
    [V]
    Model NumberTypeDown Thrust
    2.2380/415V274 726 1140NBS4K 300T4500N
    3274 764 4040NBS4K 400T4500N
    4274 765 4040NBS4K 550T4500N
    5.5274 728 4040NBS4K 750T4500N
    7.5274 729 4040NBS4K 1000T4500N

    Perfomance Data 380-400-415 V 50 Hz

    Power Voltage
    [V]
    RIAR.p.m.
    Min-1
    Power Factor
    cosϕ
    kWHP5075100
    0.370.53801.3527900.690.770.83
    4001.3528200.640.730.79
    4151.3528350.610.70.76
    0.550.753801.8528000.650.750.83
    4001.8528300.60.70.78
    4151.928500.550.660.75
    0.7513802.228100.640.750.82
    4002.228350.580.70.78
    4152.2528500.540.650.74
    1.11.5380328000.640.760.83
    400328300.60.710.79
    415328450.550.670.75
    1.52380428000.60.730.82
    4004.128250.530.660.76
    4154.328400.480.610.71
    2.233805.528000.630.760.83
    4005.628250.560.690.78
    4155.728400.50.640.73
    343807.427800.590.730.83
    4007.528100.510.660.78
    4157.928250.470.60.72
    45,53809.628000.570.720.82
    4009.828200.50.640.77
    41510.328350.45
    0.59
    0.71
    5.57,538012.628250.630.770.86
    40012.528450.550.710.82
    41512.828600.50.650.78
    7.51038016.92810.650.790.87
    40016.928350.570.720.83
    41517.328500.510.660.77