Technical Specifications:

• Rated Power: 1.1 kW to 2.2 kW (depending on configuration)
• Rated Voltage: 230V / 400V AC, 50 Hz
• Rated Current: 5.0 A – 9.5 A
• Rated Speed: 2850 RPM (2-pole design)
• Insulation Class: F (155°C)
• Protection Class: IP68 (fully submersible)
• Cooling Method: Water-cooled (surrounding liquid provides thermal dissipation)
• Cable Length: Standard 10 m, H07RN-F rubber sheathed
• Mounting: Vertical submersible installation only

Material Composition:

• Stator Housing: Cast iron (EN-GJL-250 grey cast iron)
• Rotor Shaft: Stainless steel AISI 304
• Bearings: Upper – carbide silicon; Lower – grease-lubricated ball bearing
• Mechanical Seal: Double mechanical seal, SiC/SiC/NBR
• Windings: Copper (Class F enamel insulation)

Structural Features:

• Compact cylindrical stator design optimized for 4-inch to 6-inch pump housings
• Oil-filled motor chamber for pressure compensation
• Integrated thermal protector (PTC thermistor) embedded in stator winding
• Strain-relief cable gland at motor top

Working Principle:
Electric current energizes the stator windings, creating a rotating magnetic field. This field induces current in the rotor cage, producing torque. The rotor is fully submerged; the surrounding water removes heat from the stator jacket. The mechanical seal prevents liquid ingress into the motor chamber.

Key Advantages:

• IP68 rating enables permanent submersion without risk of electrical failure
• Water-cooled design eliminates need for external fan cooling
• Oil-filled compensation chamber equalizes hydrostatic pressure
• Double mechanical seal provides redundancy against leakage

Applicable Industries:

• Municipal water supply and well pumping
• Industrial process water circulation
• Building drainage and dewatering
• Agricultural irrigation systems

Installation Requirements:

• Must be installed vertically, motor at top, pump at bottom
• Minimum submersion depth: 1.0 m below water surface
• Cable must not be kinked; minimum bend radius: 150 mm
• Power supply must include a dedicated motor protection circuit breaker

Usage Precautions:

• Do not operate with insufficient submersion depth — motor will overheat
• Do not run dry under any circumstance — mechanical seal will fail within minutes
• Check insulation resistance (≥5 MΩ at 500V DC) before each commissioning
• Annual inspection of mechanical seal and bearing condition is mandatory