Pedrollo Engine 4PD-7.5HP-5.5kW-400V

Pedrollo 4PD-7.5HP-5.5kW-400V is an oil-filled, three-phase submersible electric motor, designed for intensive operation with Pedrollo 4SR hydraulic modules. It is suitable for deep wells, high-load irrigation and industrial installations, as well as systems with continuous water supply, requiring reliability, stability, and a long service life.

Design Features and Materials

✅ AISI 316 stainless steel casing — exceptional corrosion resistance even with high water mineralization. 

✅ DUPLEX steel shaft — possesses excellent strength, resistant to wear and axial loads. 

✅ Oil-filled cooling system — ensures efficient heat dissipation and lubrication of all internal components, prevents overheating, and is safe for contact with drinking water. 

✅ Anti-corrosion bottom protection — made of a cadmium-free zinc and aluminum alloy, protects against stray currents and aggressive impurities. 

✅ Standard NEMA flange — ensures simple and reliable installation with Pedrollo 4SR pumps. 

✅ A 3.6-meter power cable — included in the kit, designed for submersion up to 200 m.

Technical Specifications Pedrollo 4PD-7.5HP-5.5kW-400V

Motor type: two-pole (~2900 rpm) 

Insulation: class F 

Protection degree: IP68 

Maximum submersion depth: up to 200 m 

Minimum cooling water flow: 8 cm/s 

Operating mode: continuous (S1) 

Maximum number of starts: up to 20 per hour (with intervals)

Areas of Application

✅ Deep-well water supply for industries, greenhouse complexes, and agricultural enterprises 

✅ Systems for continuous or backup water supply with high flow rates 

✅ Multi-level pumping stations and facilities with high lift requirements 

✅ Automatic irrigation installations and pumping groups 

✅ Fire safety pumps with increased head

Advantages of Pedrollo 4PD-7.5HP-5.5kW-400V

High power and reliability for continuous operation

Maximum resistance to wear and overheating

Safety for use in drinking water supply systems

Easy installation and compatibility with Pedrollo 4SR pumps

Minimal operating costs with long service life

The Pedrollo 4PD-7.5HP-5.5kW-400V is a powerful and durable electric motor created for use in systems where downtime is unacceptable. It combines industrial power with a compact design and high reliability, confirmed by tests in harsh conditions.