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Submersible Motors & Control Boxes
Submersible Motors
—  NPM4 Series
—  NPS6 Series
—  RWK6 Series
—  NRS8 Series
—  NRS10 Series

NRS8 Series

8” Water Filled Rewindable Submersible Motor

FEATURES

  • Suitable for wells with 203 mm and larger inner diameter
  • Maintenance free water lubricated radial and axial (Kingsbury) bearings
  • Pressure balancing between inner and outer side with a rubber diaphragm and a pressure
  • Rewindable stator reduce repair and maintenance costs

TECHNICAL DATA

  • Powers from 30HP to 150HP
  • 8″ NEMA shaft end and flange
  • Water lubricated
  • Voltage tolerance ± %10
  • Max. water temperature 30 °C
  • Speed 2900 / 3600 rpm
  • Starts per hour 7
  • Min. cooling flow 1 m/s
  • Rubber Lead
  • SiC Mechanical Seal (IP68)
  • S-D starting for all power rates

       380V – 400V – 415V in 50Hz 

  • Filled with mixture of water and glycol (FP below -15°C)

Performance Data

Motor Type Power FREQUENCY VOLTAGE CURRENT (A) EFFICIENCY (%) POWER FACTOR ( Cos ROTATION
(HP) (kW) (Hz) (V) 1 1.15 0.5 0.75 1 1.15 0.5 0.75 1 1.15 (rpm)
NRS8 3000T 30 22 50 380 51.2 - 77.7 80.6 78.3 - 0.76 0.82 0.84 - 2867
400 48.8 - 79.4 80.7 79.9 - 0.71 0.79 0.82 - 2881
415 48.3 - 78.1 80.7 78.8 - 0.66 0.76 0.81 - 2890
NRS8 4000T 40 30 50 380 63.3 - 83.2 85.0 83.8 - 0.75 0.82 0.85 - 2889
400 62.0 - 82.6 84.6 84.0 - 0.69 0.78 0.83 - 2913
415 62.0 - 81.4 83.5 84.1 - 0.64 0.75 0.80 - 2918
NRS8 5000T 50 37 50 380 79.0 - 82.3 85.2 83.5 - 0.78 0.84 0.86 - 2891
400 76.2 - 83.3 85.4 84.1 - 0.73 0.81 0.84 - 2897
415 74.0 - 84.1 85.3 84.4 - 0.68 0.78 0.83 - 2901
NRS8 6000T 60 45 50 380 93.7 - 82.2 85.2 83.1 - 0.80 0.85 0.87 - 2885
400 89.5 - 83.0 85.5 84.0 - 0.75 0.83 0.86 - 2898
415 88.8 - 82.8 84.4 83.7 - 0.71 0.80 0.84 - 2911
NRS8 7000T 70 52 50 380 108.0 - 83.1 85.9 84.2 - 0.79 0.85 0.87 - 2887
400 103.3 - 84.1 86.7 85.0 - 0.75 0.82 0.86 - 2895
415 101.7 - 82.6 86.6 85.6 - 0.71 0.80 0.84 - 2910
NRS8 7500T 75 55 50 380 115.3 - 83.3 86.6 84.1 - 0.78 0.84 0.87 - 2883
400 112.0 - 84.0 86.3 85.3 - 0.73 0.81 0.85 - 2912
415 110.2 - 84.6 86.4 85.7 - 0.68 0.78 0.83 - 2918
NRS8 8000T 80 59 50 380 123.4 - 83.3 86.1 84.6 - 0.80 0.85 0.87 - 2894
400 116.8 - 84.1 86.5 85.5 - 0.74 0.82 0.86 - 2903
415 115.4 - 84.8 86.7 85.8 - 0.70 0.79 0.84 - 2909
NRS8 9000T 90 66 50 380 139.7 - 84.4 85.8 84.8 - 0.74 0.82 0.86 - 2901
400 137.0 - 83.2 85.4 85.2 - 0.68 0.78 0.83 - 2903
415 138.0 - 83.0 85.0 84.9 - 0.62 0.73 0.80 - 2906
NRS8 10000T 100 75 50 380 150.8 - 84.1 87.1 85.0 - 0.79 0.85 0.88 - 2884
400 146.0 - 85.0 86.1 85.6 - 0.74 0.82 0.86 - 2892
415 144.5 - 85.9 86.7 86.2 - 0.68 0.78 0.83 - 2900
NRS8 11000T 110 81 50 380 167.7 - 85.2 87.6 86.1 - 0.76 0.84 0.87 - 2911
400 164.0 - 85.9 86.8 86.6 - 0.70 0.80 0.84 - 2917
415 163.0 - 86.2 86.7 86.9 - 0.63 0.75 0.81 - 2918
NRS8 12500T 125 92 50 380 191.0 - 85.2 86.2 85.8 - 0.73 0.82 0.86 - 2905
400 189.0 - 84.7 86.4 85.8 - 0.66 0.77 0.83 - 2905
415 191.3 - 82.8 85.7 86.0 - 0.61 0.72 0.79 - 2908
NRS8 15000T 150 110 50 380 221.0 - 85.0 87.0 86.1 - 0.81 0.87 0.89 - 2886
400 213.0 - 86.1 88.4 87.0 - 0.77 0.84 0.87 - 2892
415 210.0 - 85.2 88.8 86.8 - 0.74 0.82 0.86 - 2918

Leads

Motor Type HP kW

LEAD (mm²)

380 V 50 Hz / 400 V 50 Hz / 415 V 50 Hz

 CABLE LENGTH (m)
DOL STAR - DELTA
NRS8 3000T 30 22 3 x 4 2 x (3 x 2,5) 4
NRS8 4000T 40 30 3 x 10 2 x (3 x 6) 4
NRS8 5000T 50 37 3 x 10 2 x (3 x 6) 4
NRS8 6000T 60 45 3 x 10 2 x (3 x 6) 4
NRS8 7000T 70 52 3 x 16 2 x (3 x 6) 4
NRS8 7500T 75 55 3 x 16 2 x (3 x 10) 4
NRS8 8000T 80 59 3 x 16 2 x (3 x 10) 4
NRS8 9000T 90 66 3 x 25 2 x (3 x 10) 4
NRS8 10000T 100 75 3 x 25 2 x (3 x 10) 4
NRS8 11000T 110 81 3 x 25 2 x (3 x 16) 4
NRS8 12500T 125 92 3 x 25 2 x (3 x 16) 4
NRS8 15000T 150 110 3 x 25 2 x (3 x 25) 4