4" NBS4 Motors

4" NBS4 Motors

New design of Coverco 4" Submersible Rewindable Oil-Filled Motor

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  • NEW DESIGN

    The design has been further developed to make it even more reliable and resilient. The design is more compact with excellent performance.

    • Reliable and resilient construction
    • New modernized winding design
    • Robust mechanical design
    • Excellent performance
    • Reduction of plastic parts
    • Suitable for VFD operation
    • Flexibility of power supply, even at low voltages

    FEATURES & BENEFITS

    • Motors are pre-filled with a dielectric fluid (known as „white oil“), approved by the FDA and other international pharmacological institutes.
    • The motors can be powered with single-phase and three-phase power supply.
    • Reliable operation in wells with diameters of ≥ 4" for water up to 30 °C
    • Axial and radial oil lubricated bearings allow maintenance-free operation (Ball bearings have a theoretical service life).
    • Cable material compliant with drinking water standards
    • Sand protection / Mechanical seal allow optimal operation even in the presence of sand in the well
    • Excellent efficiency and low operating costs

    TECHNICAL DATA

    • Ratings: Low Thrust 0.37 – 2.2 kW
    • 4" NEMA mounting design
    • Protection IP68 and insulation class F
    • Frequency of starts: 30 starts/hour
    • Vertical and horizontal operation
    • Suitable for VFD operation (230 V, without filter)
    • Voltage:
    • Single-phase: 210-220-230 V / 50 Hz - 220-230 V / 60 Hz
    • Three-phase: 220-230 V / 50 Hz - 380-415 V / 50 Hz - 460 V / 60 Hz - 220-230 V / 60 Hz - 380 V / 60 Hz
    • Voltage tolerance: UN -10% / +6%
    • Motor protection: thermal relays in compliance with EN 60947-4-1, trip class 10 or 10 A, trip time < 10 s. at 5 x IN
    • Nominal ambient temperature: 30 °C with 0.08 m/s cooling flow
    • Cable dimensions: 4 x 1.5 mm²
    • Water pH: 6.5 - 8
    • Thrust load Low Thrust: 1500 N, 2500 N
  • PERFORMANCE DATA 1 PHASE 210-220-230 V 50 Hz

    Type/CodeRating[Hz]Voltage
    [V]
    INLRC/INrpm
    [Min-1]
    FLT
    [Nm]
    LRT/FLTBDT/FLTEfficiency
    ƞ%
    Power factor
    cos φ
    Capacitor
    μF
    [kW][HP]50751005075100
    NBS4 050 M
    275 846 1042
    0.370.5502103.33.128061.30.691.913949550.920.960.9820
    2203.23.328351.30.752.093748550.880.940.97
    2303.33.328501.20.822.293445530.820.890.94
    NBS4 075 M
    275 847 1042
    0.550.75502104.72.727761.90.571.74454590.920.960.9825
    2204.5328111.90.631.874152590.870.940.97
    2304.6328221.90.692.043748560.810.890.95
    NBS4 100 M
    275 848 1042
    0.751502105.93.328352.50.621.944656630.880.940.9736
    2205.83.528552.50.682.134455610.810.90.96
    2306.23.428652.50.742.324252590.740.840.91
    NBS4 150 M
    275 850 1042
    1.11.5502108.23.127913.80.551.665161650.930.980.9940
    2208.13.328153.80.611.824759650.860.930.98
    2308.33.328263.80.661.994355620.780.870.94
    NBS4 200 M
    275 851 1042
    1.525021010.83.327935.10.571.715362660.981150
    22010.53.528155.10.631.875161650.930.980.99
    23010.53.7283350.682.054758640.850.930.97
    NBS4 300 M
    275 852 1042
    2.235021015.93.127787.70.561.685564670.970.99176
    22015.13.428167.60.611.845363680.90.960.99
    23015.43.528317.50.672.014860660.80.90.96

    PERFORMANCE DATA 1 PHASE HT 210-220-230 V 50 Hz

    Type/CodeRating[Hz]Voltage
    [V]
    INLRC/INrpm
    [Min-1]
    FLT
    [Nm]
    LRT/FLTBDT/FLTEfficiency
    ƞ%
    Power factor
    cos φ
    Capacitor
    μF
    [kW][HP]50751005075100
    NBS4K 300 M
    275 852 1140
    2.23.05021015.04.527907.520.602.096068720.960.980.9976
    22014.85.528107.490.672.205767710.910.960.98
    23014.55.528307.420.732.335464700.820.910.96
    NBS4K 400 M
    275 849 4040
    3.04.05021019.54.929109.841.132.226271750.940.970.98100+178
    22019.25.129209.821.242.436170740.850.930.96
    23019.75.129309.781.372.685666730.730.840.92
    NBS4K 550 M
    275 854 4040
    4.05.55021025.14.1289013.20.831.836674770.930.970.98130+178
    22024.64.2290013.10.922.176272760.850.930.97
    23025.14.3291013.10.992.285567740.750.870.94

    PERFORMANCE DATA 1 PHASE HT 220-230 V 60 Hz

    Type/CodeRating[Hz]Voltage
    [V]
    INLRC/INrpm
    [Min-1]
    FLT
    [Nm]
    LRT/FLTBDT/FLTEfficiency
    ƞ%
    Power factor
    cos φ
    Capacitor
    μF
    SF A
    [kW][HP]50751005075100
    NBS4K 400 M
    275 870 4040
    3.04.06022019.56.535408.101.53.15465710.960.970.98120+(156-200)21.8
    23019.56.635508.101.63.25261690.950.960.9721.0
    NBS4K 550 M
    275 806 4040
    4.05.56022026.04.9353010.801.112.35768730.940.950.96150+(156-200)29.0
    23025.55.1354010.801.222.75465720.940.950.9628.5

    PERFORMANCE DATA 3 PHASE 220-230 V 50 Hz

    Type/CodeRating[Hz]Voltage
    [V]
    INLRC/INrpm
    [Min-1]
    FLT
    [Nm]
    LRT/FLTBDT/FLTEfficiency
    ƞ%
    Power factor
    cos φ
    [kW][HP]50751005075100
    274 752 10420.550.75502203.114.3928401.882.412.715461640.570.680.77
    2303.34.3528601.872.693.025159630.510.620.71
    274 753 10420.751502203.84.7728352.512.572.716066690.570.690.78
    23044.7728552.492.873.025765680.50.620.71
    274 754 10421.11.5502205.354.7428353.772.492.536671730.570.70.79
    2305.574.828553.742.782.536369720.50.620.72
    274 755 10421.52502206.564.6828255.042.262.437074740.630.760.83
    2306.784.7728455.012.522.826772740.550.680.77
    274 756 10422.23502209.854.5628107.62.382.357376760.550.70.8
    23010.614.4528307.552.662.436974750.480.620.73

    PERFORMANCE DATA 3 PHASE 380-400-415 V 50 Hz

    Type/CodeRating[Hz]Voltage
    [V]
    INLRC/INrpm
    [Min-1]
    FLT
    [Nm]
    LRT/FLTBDT/FLTEfficiency
    ƞ%
    Power factor
    cos φ
    [kW][HP]50751005075100
    NBS4 050 T
    274 761 1042
    0.370.5503801.34.3828451.252.442.735057610.590.690.76
    4001.34.6128651.242.723.054957610.540.640.72
    4151.34.7828801.242.953.34856610.50.60.68
    NBS4 075 T
    274 762 1042
    0.550.75503801.84.3928401.882.412.715461640.570.680.77
    4001.94.3828601.872.693.025159630.510.620.71
    4151.94.5428701.862.93.274958630.470.570.66
    NBS4 100 T
    274 763 1042
    0.751503802.24.7728352.512.572.716066690.570.690.78
    4002.34.828552.492.873.025765680.50.620.71
    4152.44.7828652.493.13.275563670.450.560.66
    NBS4 150 T
    274 724 1042
    1.11.5503803.14.7428353.772.492.536671730.570.70.79
    4003.24.8328553.742.782.826369720.50.620.72
    4153.44.7228653.7333.056168710.440.570.67
    NBS4 200 T
    274 725 1042
    1.52503803.84.6828255.042.262.437074740.630.760.83
    4003.94.828455.012.522.716772740.550.680.77
    4154.14.7428604.982.732.936471730.480.620.72
    NBS4 300 T
    274 726 1042
    2.23503805.74.5628107.62.382.357376760.550.70.8
    4006.14.4928307.552.662.626974750.480.620.73
    4156.44.4428457.512.872.846672750.430.560.67
    NBS4 400 T
    274 764 4140
    3.04.0503807.404.5278010.302.52.87374750.590.730.83
    4007.504.6281010.182.73.26973740.510.660.78
    4157.904.8282510.163.03.46672730.470.600.72
    NBS4 550 T
    274 765 4140
    4.05.5503809.605.1280013.622.82.97779790.570.720.82
    4009.805.1282013.533.13.17478780.500.640.77
    41510.305.1283513.483.43.27076770.450.590.71
    NBS4 750 T
    274 728 4140
    5.57.55038012.605.2282518.602.52.77980800.630.770.86
    40012.505.4284518.442.72.87780800.550.710.82
    41512.805.4286018.372.93.07479790.500.650.78

    PERFORMANCE DATA 3 PHASE 220-230 V 60 Hz

    Type/CodeRating[Hz]Voltage
    [V]
    INLRC/INrpm
    [Min-1]
    FLT
    [Nm]
    LRT/FLTBDT/FLTEfficiency
    ƞ%
    Power factor
    cos φ
    SF ASF
    [kW][HP]50751005075100
    NBS4 050 T
    274 711 1042
    0.370.5602202.55.23348012.843.84453580.550.640.713.11.24
    2302.55.47349513.124.174352580.50.590.673.11.24
    NBS4 075 T
    274 712 1042
    0.550.75602203.55.134701.52.973.635059630.520.630.714.11.17
    2303.55.3334851.53.263.984958630.470.570.664.11.17
    NBS4 100 T
    274 713 1042
    0.751602204.15.4834602.12.913.335865680.540.650.7351.22
    2304.15.73347523.193.665664680.490.60.6951.22
    NBS4 150 T
    274 714 1042
    1.11.5602205.65.5134553.13.243.26772740.540.670.756.31.13
    2305.65.7634703.13.563.516871740.470.610.716.31.13
    NBS4 200 T
    274 715 1042
    1.52602207.15.2934454.12.822.976873750.560.690.778.11.14
    2307.15.5334654.13.13.276672750.510.630.738.11.14
    NBS4 300 T
    274 716 1042
    2.23602209.94.9734256.22.532.727176770.590.720.810.91.1
    2309.95.234456.22.782.997075770.530.670.7610.91.1
    NBS4 400 T
    274 776 4140
    3.04.06022014.26.034708.253.44.37076770.500.630.7315.1-
    23015.16.234908.253.64.56975760.470.600.6615.7-
    NBS4 550 T
    274 777 4140
    4.05.56022016.86.4345011.13.13.47679800.580.710.7918.5-
    23017.06.3346011.03.33.67378800.510.640.7518.6-
    NBS4 750 T
    274 718 4140
    5.57.56022021.06.4347015.12.63.07881820.630.760.8423.8-
    23021.16.4348515.12.73.27881820.560.700.7923.6-

    PERFORMANCE DATA 3 PHASE 380 V 60 Hz

    Type/CodeRating[Hz]Voltage
    [V]
    INLRC/INrpm
    [Min-1]
    FLT
    [Nm]
    LRT/FLTBDT/FLTEfficiency
    ƞ%
    Power factor
    cos φ
    SF ASF
    [kW][HP]50751005075100
    NBS4 050 T
    274 741 1042
    0.370.5603801.55.47349513.124.174352580.50.590.671.91.27
    NBS4 075 T
    274 742 1042
    0.550.75603802.15.3334851.53.263.984958630.470.570.662.51.19
    NBS4 100 T
    274 743 1042
    0.751603802.55.73347523.193.665664680.490.60.6931.2
    NBS4 150 T
    274 744 1042
    1.11.5603803.45.7634703.13.563.516871740.470.610.713.81.12
    NBS4 200 T
    274 745 1042
    1.52603804.35.5334654.13.13.276672750.510.630.734.91.14
    NBS4 300 T
    274 746 1042
    2.236038065.234456.22.782.997075770.530.670.766.61.1
    NBS4 400 T
    274 774 4140
    3.04.0603808.26.034708.243.54.37075770.500.630.738.7-
    NBS4 550 T
    274 775 4140
    4.05.56038010.26.3345011.03.54.07478800.540.670.7611.4-
    NBS4 750 T
    274 748 4140
    5.57.56038013.06.5349015.03.13.87881830.550.690.7814.5-

    PERFORMANCE DATA 3 PHASE 460 V 60 Hz

    Type/CodeRating[Hz]Voltage
    [V]
    INLRC/INrpm
    [Min-1]
    FLT
    [Nm]
    LRT/FLTBDT/FLTEfficiency
    ƞ%
    Power factor
    cos φ
    SF ASF
    [kW][HP]50751005075100
    NBS4 050 T
    264 761 1042
    0.370.50604601.24.9347012.693.594453580.570.660.731.61.27
    NBS4 075 T
    264 762 1042
    0.550.75604601.74.8334601.52.873.515159630.540.640.722.11.19
    NBS4 100 T
    274 763 1042
    0.751.0604602.15.73347523.193.665664680.490.60.692.51.2
    NBS4 150 T
    274 724 1042
    1.11.5604602.85.7634703.13.563.516871740.470.610.713.11.12
    NBS4 200 T
    274 725 1042
    1.52.0604603.65.5334654.13.13.276672750.510.630.7341.14
    NBS4 300 T
    274 726 1042
    2.23.0604605.35.1834556.22.973.196773760.480.610.715.81.09
    NBS4 400 T
    274 764 4140
    3.04.0604606.44.534508.242.52.87375780.590.720.757.0-
    NBS4 550 T
    274 765 4140
    4.05.5604608.35.1346011.02.82.97778800.570.700.749.1-
    NBS4 750 T
    274 728 4140
    5.57.56046010.85.2348015.02.52.77980810.630.760.8012.0-

    PERFORMANCE DATA 3 PHASE HT 380-415 V 50 Hz

    Type/CodeRating[Hz]Voltage
    [V]
    INLRC/INrpm
    [Min-1]
    FLT
    [Nm]
    LRT/FLTBDT/FLTEfficiency
    ƞ%
    Power factor
    cos φ
    [kW][HP]50751005075100
    NBS4K 300 T
    274 726 1140
    2.23.0503805.504.928007.512.42.97073740.630.760.83
    4005.605.028257.442.83.16873740.560.690.78
    4155.705.128407.393.03.36672730.500.640.73
    NBS4K 400 T
    274 764 4040
    3.04.0503807.404.5278010.302.52.87374750.590.730.83
    4007.504.6281010.182.73.26973740.510.660.78
    4157.904.8282510.163.03.46672730.470.600.72
    NBS4K 550 T
    274 765 4040
    4.05.5503809.605.1280013.622.82.97779790.570.720.82
    4009.805.1282013.533.13.17478780.500.640.77
    41510.305.1283513.483.43.27076770.450.590.71
    NBS4K 750 T
    274 728 4040
    5.57.55038012.605.2282518.602.52.77980800.630.770.86
    40012.505.4284518.442.72.87780800.550.710.82
    41512.805.4286018.372.93.07479790.500.650.78
    NBS4K 1000 T
    274 729 4040
    7.510.05038016.905.1281025.502.42.58080800.650.790.87
    40016.905.3283525.262.62.67880800.570.720.83
    41517.305.3285025.052.72.77579790.510.660.77

    PERFORMANCE DATA 3 PHASE HT 220-230 V 60 Hz

    Type/CodeRating[Hz]Voltage
    [V]
    INLRC/INrpm
    [Min-1]
    FLT
    [Nm]
    LRT/FLTBDT/FLTEfficiency
    ƞ%
    Power factor
    cos φ
    SF A
    [kW][HP]50751005075100
    NBS4K 1000 T
    274 719 4040
    7.5106022029.05.9344020.82.62.67879800.640.780.8532.6
    23029.06.0346020.72.82.87679800.580.720.8132.0

    PERFORMANCE DATA 3 PHASE HT 380V 60 Hz

    Type/CodeRating[Hz]Voltage
    [V]
    INLRC/INrpm
    [Min-1]
    FLT
    [Nm]
    LRT/FLTBDT/FLTEfficiency
    ƞ%
    Power factor
    cos φ
    SF A
    [kW][HP]50751005075100
    NBS4K 1000 T
    274 749 4040
    7.5106038017.86.5348020.62.93.37780810.570.710.8019.4

    PERFORMANCE DATA 3 PHASE HT 460V 60 Hz

    Type/CodeRating[Hz]Voltage
    [V]
    INLRC/INrpm
    [Min-1]
    FLT
    [Nm]
    LRT/FLTBDT/FLTEfficiency
    ƞ%
    Power factor
    cos φ
    SF A
    [kW][HP]50751005075100
    NBS4K 1000 T
    274 729 4040
    7.5106046014.55.1347020.62.42.58080800.650.760.8015.8