Model: 4-Inch Submersible Oil-Filled (OF) Motor
Power Output: 3 HP (2.2 kW)
Phase: 3-Phase
Construction: Oil-Filled (OF) Design
SKU: ACSOF300TP
Specifications
Motor Diameter: 4 Inches (Standard NEMA mounting)
Voltage: 380-415 V / 50 Hz
Insulation Class: Class B/F (Engineered for standard to medium-duty operations)
Protection Rating: IP 68 (Full submersible protection)
Housing Material: Corrosion-resistant stainless steel (AISI 304)
Cooling/Lubrication: Non-toxic, high-dielectric mineral oil-filled design for optimal internal bearing lubrication and efficient heat transfer.
Shaft Material: Hardened stainless steel
Bearing System: Industrial-grade, lubricated radial and thrust bearings designed for smooth, reliable operation.
Key Features
Oil-Filled Efficiency: The oil-filled architecture ensures excellent cooling and constant, high-quality lubrication for all internal components, extending the life of the motor in clean-to-moderately-silty water.
Self-Lubricating Reliability: Continuous lubrication of thrust and radial bearings significantly reduces friction and mechanical wear, supporting the 3 HP power output efficiently.
Thermal Management: Features an internal pressure-equalizing rubber diaphragm that compensates for the natural thermal expansion of the oil during operation.
Sealing Integrity: High-performance mechanical seal assembly effectively prevents water ingress and ensures the internal oil remains uncontaminated.
Installation and Use Notes
Electrical Protection: A professional 3-phase control panel equipped with thermal overload protection and single-phasing/imbalance monitoring is mandatory. Ensure the overload relay is precisely calibrated to the motor’s Full Load Amperage (FLA).
Cooling Requirement: A minimum flow velocity of 0.08 m/s past the motor casing is required. If the borehole diameter is significantly larger than the 4-inch motor, a flow induction shroud is recommended to ensure adequate heat dissipation.
Handling: Always use the designated lifting eyes on the motor head for installation. Never support the pump or motor assembly by the power cable.
Cable Connection: This motor is compatible with standard submersible flat cable. Ensure all electrical joints are created using a professional-grade, resin-encapsulated submersible kit.