4 Oil Filled Motor

4" Oil Filled Motor


STAIRS rewindable 4" oil filled submersible motors are designed to operate dependably in 4" and larger boreholes.


Operating Limits

●Max. Immersion depth: 200m
●Protection: IP68
●Max starts / h : 40
●Insulation: Class F
●Max water temperature: 35°C
●Flow rate: 0.2m/sec


●Removable waterproof cable connector for esay maintenance operations.
●Cable materials are CE approved (for potable water applications)
●Non-toxic oil-premium quality,colorless white oil.
●Special stator design for high starting torque in single-phase models.
●Unique single-phase electrical design for psc starting,and starting capacitor + PSC starting.
●Motor casing,shaft,upper cover and bottom end made of stainless steel.
●Zinc-plated cast iron upper bracket.
●Stators are designed for higher efficiency and the ability to operate within wider voltage fluctuations.
●Use of high quality european made components such as mechanical seal,cable connectors,copper winding wires and insulations
●All motors 100% tested.