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oil cooling submersible moter Description

* Conform to international standard of IEC34-ICE, whole blocked asynchronous motor with squirrel cage rotor.
* Outer shell, shaft and bottom made of stainless steel.
* Copper annoy or Nickel plated cast-iron upper and bracket.
* Sweden SKF thrust bearing undertaken higher thrust load.
* Italy BY seals.
* Pressure automatic adjusting device made of oil and water proof reformed butyl-rubber.
* Flange connector under the standard of NEMA (USA National Electrical Manufacturing Association).
* Lacquer-coated wire conformed to USA standard of NEMA MW37-C.
* Chinese patent product, fake and imitation will be investigated.
Patent No.: ZL99240666.8 ZL99317606.2

Properties

* Ratings: singlephase: 0.37kW - 2.2kW,
threephase: 0.37kW - 7.5kW
* Voltage: singlephase 220/230V (-6% +10%) or 230/240V(+6% -10%) 50Hz
Threephase 230V or 400V 10% 50Hz
* Thrust load: 1500N (0.37kW - 0.75kW) NFS4 series
2500N (1.1kW - 5.5kW) NFS4 series
4500N (3.0kW - 7.5kW) NFS4 series
* Degree of protection: IP68
* Insulation: Class B
* Max. Ambient temperature: 35
* Minimum cooling flow along the motor: 8cm/sec.
* Water pH: 6.5 - 8.0
* Maximum starts per hour: 30
* Maximum submerged depth: 350 meter
* Vertical and horizontal mounting position
* Motor protection by temperature compensated thermal relay and extra-quick trip overload
* Overload trip time: 10 seconds (at load is 5 times of rating current)
* Flat water proof cable 4 2.0 mm2 with separated earth
Dimension: 17 5.7 mm
Length: 1.5m (0.37 - 3.0 kW); 2.5m(4.0 - 5.5kW); 3.0m (7.5kW)

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