Model: 4-Inch Submersible Motor (V-SSSM Series)
Power Output: 5.5 HP (4.0 kW)
Phase: 3-Phase (3ph)
Construction: Stainless Steel (SS) Housing
Series: V-SSSM (Premium Oil-Filled / Stainless Steel Motor)
Specifications
Motor Diameter: 4 Inches (Standard NEMA mounting)
Voltage: 380-415 V / 50 Hz
Cooling Medium: OF (Oil-Filled / Oil-Cooled rewindable design using non-toxic, food-grade dielectric oil)
Insulation Class: Class F (Designed for high-thermal stress and reliable industrial/agricultural performance)
Protection Rating: IP 68 (Continuous full submersion protection)
Housing Material: Premium Stainless Steel (SS) for maximum corrosion resistance
Shaft Material: High-tensile, precision-ground stainless steel conforming to NEMA standards
Bearing System: Heavy-duty, oil-lubricated axial thrust and radial bearings engineered to support high-head pump stack loads.
Key Features
Premium Stainless Steel Build: The complete V-SSSM stainless steel shell provides exceptional protection against rust, scaling, and aggressive water conditions, ensuring maximum equipment lifespan.
High-Power Efficiency: Delivers a robust 5.5 HP output in a compact 4-inch frame, offering a high power-to-size ratio ideal for deeper boreholes and high-pressure demands.
Rewindable Oil-Filled Design: The oil-filled stator winding allows for straightforward servicing, maintenance, and long-term cost efficiency, while providing superior internal lubrication.
Advanced Sand Protection: Equipped with a mechanical sand slinger and reinforced lip seals to prevent borehole abrasives and sediment from penetrating internal motor components.
Universal Compatibility: Built strictly to standardized 4" NEMA interface dimensions to guarantee effortless coupling with any major 4-inch submersible pump end (wet end).
Installation and Use Notes
Electrical Protection: A professional 3-phase control panel equipped with properly calibrated thermal overload relays, phase-failure (single-phasing) protection, and voltage imbalance monitoring is mandatory. Set the overload protection precisely to the motor’s specific Full Load Amperage (FLA).
Cooling Requirements: Ensure the motor is positioned above the well screen so that water naturally draws past the stainless steel casing at a minimum velocity of 0.15 m/s for effective heat dissipation. If installed in wide wells or open water tanks, a cooling shroud must be fitted.
Handling: Always lift and lower the motor utilizing the proper chassis mounting points or secure pump clamps. Never lift, lower, or suspend the motor by its electrical drop cable, as this will rupture the watertight seal assembly.
Cable Splicing: Waterproof joints must be executed utilizing a professional-grade, heat-shrink or resin-filled submersible cable splice kit to ensure total protection against water ingress over prolonged high-pressure submersion.