Magnus-4 550 4kW 3 Phase Pump

Introduction

As a retailer of hot tub spare parts, I’m excited to present the Magnus-4 550 4kW 3 Phase Pump – a high-performance solution engineered for larger commercial pools and demanding aquatic systems. This professional-grade pump combines substantial power with exceptional durability, making it the perfect choice for facilities requiring significant water circulation capacity with unwavering reliability.

Power and Performance

The Magnus-4 550 stands out with its impressive 4kW three-phase motor, delivering commanding water flow while maintaining operational efficiency. Operating at a consistent 1,450 RPM, this pump provides the substantial circulation needed for larger commercial environments without excessive energy consumption. The enclosed asynchronous motor with external ventilation ensures optimal temperature management during continuous operation, a critical feature for demanding commercial applications.

What sets this pump apart is its industrial-grade construction paired with user-friendly maintenance features. The four-pin closure system on the pre-filter cover allows for quick and convenient access during routine servicing, minimizing downtime and simplifying maintenance procedures. This practical design makes the Magnus-4 550 particularly valuable for facilities where operational continuity is essential.

Superior Construction

Durability is at the core of the Magnus-4 550’s design philosophy. The pump components – including the pre-filter body, pump body, base, and cover – are manufactured from glass-fiber loaded polypropylene, providing exceptional resistance to pool chemicals that typically degrade standard materials. This specialized composition ensures the pump maintains structural integrity even in the most chemically aggressive environments.

The impeller is crafted from Noryl, a high-performance engineering thermoplastic known for its dimensional stability and superior hydraulic efficiency. The mechanical seal features premium ceramic carbon components paired with AISI-304 stainless steel, creating a robust barrier against water infiltration that significantly extends operational life.

All fasteners and the motor shaft are manufactured from AISI-304 stainless steel, offering superior corrosion resistance in chlorinated or salt water environments. The pre-filter basket, constructed from durable polythene, efficiently captures debris before it can reach and potentially damage the impeller system.

Engineering Excellence

The Magnus-4 550 incorporates an enclosed asynchronous motor with external ventilation, designed to maintain optimal operating temperatures during extended use. With IP-55 protection grade, the motor is effectively sealed against dust and water jets from any direction, making it suitable for various installation environments.

The Class F isolation provides exceptional thermal resistance, allowing the motor to function efficiently at elevated temperatures up to 155°C (311°F). This robust insulation system extends the motor’s operational lifespan while ensuring consistent performance under varying conditions.

A particularly valuable feature is the pump’s dual frequency capability (50 Hz and 60 Hz), making it compatible with electrical systems worldwide. This versatility is especially beneficial for international facilities or regions with non-standard power infrastructures.

Maintenance Benefits

The Magnus-4 550 is engineered with maintenance simplicity as a priority. The motor bearings come pre-greased for life, eliminating the need for regular lubrication while ensuring quiet, smooth operation throughout the pump’s service life. The polycarbonate pre-filter cover with its four-pin closure system allows for quick and easy access during routine cleaning and maintenance tasks.

Ideal Applications

This powerful 4kW pump is perfectly suited for:

• Large commercial swimming pools
• Water parks and aquatic centers
• Resort and hotel pool complexes
• Competition swimming facilities
• Substantial water features requiring high flow rates
• Advanced hydrotherapy installations
• Municipal aquatic facilities

Specifications

Feature	Specification
Model	Magnus-4 550
Power	4kW
Phase	3 Phase
Motor Type	Enclosed asynchronous with external ventilation
Speed	1,450 RPM
Frequency	Dual (50 Hz and 60 Hz)
Protection Grade	IP-55
Isolation Class	F
Pre-filter Body	Glass-fibre loaded polypropylene
Pump Body	Glass-fibre loaded polypropylene
Pump Base	Glass-fibre loaded polypropylene
Cover	Glass-fibre loaded polypropylene
Pre-filter Basket	Polythene
Pre-filter Cover	Polycarbonate with four-pin closure
Impeller	Noryl
Mechanical Seal	Ceramic carbon and AISI-304 stainless steel
Screws and Shaft	AISI-304 stainless steel
SKU	1464241440
Category	Magnus

Installation Recommendations

For optimal performance of the Magnus-4 550, I recommend ensuring adequate ventilation around the motor housing to maintain effective cooling. The pump should be mounted on a solid, level foundation to minimize vibration and operational noise. As with all three-phase equipment, professional electrical installation by a qualified technician is essential to ensure correct phase sequence and appropriate circuit protection.

Conclusion

The Magnus-4 550 4kW 3 Phase Pump represents a premium solution for high-demand water circulation applications. Its combination of chemical-resistant construction, powerful performance, and thoughtful engineering makes it an exceptional choice for commercial pool operators seeking reliability and efficiency. This pump exemplifies the quality and performance that professional pool installations demand, providing years of dependable service in challenging aquatic environments.