💧 SR0753N | 0.75HP (0.56kW) Sta-Rite 3-Phase Pool Pump – 1.5″ Connections

Commercial-Grade Reliability Meets Energy-Efficient Performance for Residential & Domestic Pool Applications

📋 Product Overview

The Sta-Rite 5P2R Series SR0753N represents decades of pool pump engineering excellence, delivering reliable, energy-efficient performance specifically designed for residential and domestic pool installations. This 0.75HP (0.56kW) three-phase pump combines premium materials with intelligent design to provide years of trouble-free operation while keeping running costs predictably low.

Built by Pentair in their Pisa, Italy facility, this pump features precision-moulded reinforced fibreglass construction that resists corrosion and withstands the demanding conditions of pool environments. The three-phase motor configuration delivers superior efficiency compared to single-phase alternatives, making this an excellent choice for homeowners looking to reduce energy consumption without compromising on performance.

With 1.5″ BSP connections, integrated unions, and a self-priming design, the SR0753N offers straightforward installation and long-term value for residential pools, making it ideal for homes with three-phase electrical supply seeking professional-grade equipment at domestic scale.

⭐ Key Features

✅ Three-Phase Motor Efficiency – Superior energy performance compared to single-phase pumps, delivering significant operational savings while running cooler and quieter for extended component lifespan

✅ Reinforced Fibreglass Construction – Precision-moulded thermoplastic body engineered for high-pressure operations, providing exceptional strength while remaining lightweight and completely resistant to temperature extremes and chemical corrosion

✅ Premium Stainless Steel Components – High-grade stainless steel motor shaft and internal components ensure maximum durability and corrosion-free operation even in challenging pool water conditions

✅ Advanced Impeller Design – Glass-filled polycarbonate impeller with precision-moulded smooth water passages delivers outstanding hydraulic efficiency and consistent performance throughout the pump’s service life

✅ Professional-Grade Sealing System – Precision-lapped carbon ceramic stainless steel mechanical seal provides maximum drip-proof protection and virtually eliminates maintenance requirements

✅ Extra-Large 5″ Strainer Basket – High-capacity debris collection with see-through lid rated for 4 bar test pressure enables longer intervals between cleaning and quick visual inspection without disassembly

✅ Self-Priming Diffuser Technology – Ensures rapid pump start-up and efficient operation with minimal manual intervention, reducing installation complexity and ongoing maintenance

✅ Hi-Rise Mounting Base – Provides exceptional stability during operation and simplifies installation by elevating the pump body for improved access to connections and serviceable components

✅ Continuous-Duty 50Hz Motor – Designed specifically for quiet, reliable continuous operation with sealed, permanently lubricated bearings that eliminate regular maintenance and extend service intervals

✅ Tool-Free Maintenance Access – Stainless steel pump clamp design allows quick removal for easy access to all serviceable components without specialized tools, reducing maintenance time and costs

🔧 Technical Specifications

Specification	Detail
Model Number	SR0753N / P-STR-073
Power Output	0.75HP (0.56kW)
Voltage	380-420V
Phase	3-Phase
Frequency	50Hz
Suction Connection	1.5″ BSP
Delivery Connection	1.5″ BSP
Union Diameter	50mm Internal
Unions Included	Yes
Body Material	Reinforced Fibreglass
Impeller Material	Glass-Filled Polycarbonate
Motor Shaft Material	High-Grade Stainless Steel (AISI 304)
Mechanical Seal	Carbon Ceramic Stainless Steel
Strainer Basket Size	5″ (Large Capacity)
Lid Pressure Rating	4 Bar Test Pressure
Motor Protection	IE2 Compliant (3-phase <0.75kW)
Bearing Type	SKF Sealed & Permanently Lubricated
IP Rating	IP-X5
Flow Rate @ 8m Head	12 m³/h
Maximum Lift	2.5 metres
Salt Resistance	Up to 0.40% (4 g/l)
Dimensions (W×L×H)	288 × 514 × 309mm
Weight	14.0 kg
Manufacturer	Pentair (Made in Pisa, Italy)
Product Family	Sta-Rite 5P2R Series
Warranty	Manufacturer’s Standard Warranty

💰 Usage Costs & Running Expenses

📊 Annual Running Cost Calculation

Understanding the true cost of pump operation helps homeowners budget effectively and appreciate the value of three-phase efficiency:

Power Consumption: 0.56 kW
Typical Residential Usage: 8 hours/day × 180 days per season = 1,440 hours/year
UK Domestic Electricity Rate: £0.26 per kWh (Q4 2025 average)

✅ Annual Running Cost: 0.56 kW × 1,440 hours × £0.26/kWh = £209.66 per year

🏊 Real-World Usage Scenarios

Scenario 1: Standard Residential Pool (8 hours daily, 6-month season)

• Annual consumption: 806 kWh
• ✅ Annual cost: £209.66
• Monthly cost during swimming season: £34.94

Scenario 2: Extended Season Pool (10 hours daily, 7-month season)

• Annual consumption: 1,176 kWh
• ✅ Annual cost: £305.76
• Monthly cost during swimming season: £43.68

Scenario 3: Year-Round Heated Pool (6 hours daily, 12 months)

• Annual consumption: 1,226 kWh
• ✅ Annual cost: £318.76
• Monthly cost: £26.56

⚡ Three-Phase Efficiency Advantage

Compared to equivalent single-phase 0.75HP pump (typically 0.65kW):

Single-Phase Pump:

• Power consumption: 0.65 kW
• ❌ Annual cost (Standard Scenario): £243.36

This Three-Phase SR0753N:

• Power consumption: 0.56 kW
• ✅ Annual cost (Standard Scenario): £209.66

💷 Annual Saving: £33.70 per year
💰 5-Year Saving: £168.50
📈 Lifetime Saving (15 years): £505.50

These savings increase proportionally with extended usage patterns or rising energy costs

🎯 Real-World Applications & Use Cases

🏊‍♂️ Residential Swimming Pools

Perfect for domestic pools up to 80m³, providing reliable circulation for effective filtration and chemical distribution. The self-priming design handles typical residential installation heights while the 12 m³/h flow rate ensures complete water turnover multiple times daily for crystal-clear water quality.

🏠 Large Domestic Properties

Ideal for homeowners with three-phase electrical supply already installed for other equipment. The professional-grade construction and energy efficiency make this an excellent long-term investment for properties where quality and reliability matter more than initial cost savings.

🔄 Upgrade from Single-Phase Systems

Excellent replacement option when upgrading from older single-phase pumps, particularly for homeowners already benefiting from three-phase supply. The improved efficiency and quieter operation provide immediate quality-of-life improvements alongside reduced running costs.

☀️ Seasonal Pool Operations

Specifically designed for the demands of seasonal pool use, with components engineered to withstand extended operation during summer months followed by winterization. The corrosion-resistant materials ensure reliable restart each spring without deterioration during off-season storage.

🌊 Filtration System Integration

Works seamlessly with all standard residential pool filtration systems including sand, cartridge, and DE filters. The consistent flow characteristics and pressure performance ensure optimal filtration efficiency regardless of filter type selected.

💡 Cost Savings & Efficiency Benefits

📍 Scenario: Upgrading from Older Single-Phase 0.75HP Pump

Old Single-Phase Pump (typical 0.65kW consumption):

• ❌ Annual running cost: £243.36
• ❌ Higher heat generation requiring better ventilation
• ❌ Larger starting current surge
• ❌ More mechanical stress on components

New SR0753N Three-Phase Pump (0.56kW consumption):

• ✅ Annual running cost: £209.66
• ✅ Runs cooler, extending component life
• ✅ Smooth start-up with minimal electrical stress
• ✅ Quieter operation with less vibration

💰 Annual Saving: £33.70
⏱ Payback Period: Offset by improved reliability and reduced maintenance
📈 10-Year Total Savings: £337.00

📍 Scenario: Protected Against Energy Price Increases

If UK domestic electricity prices increase to £0.30/kWh (15% rise from current rates):

Old Single-Phase Pump:

• ❌ New annual cost: £281.00
• ❌ Annual increase: £37.64

SR0753N Three-Phase Pump:

• ✅ New annual cost: £241.92
• ✅ Annual increase: £32.26

💷 Additional Annual Saving: £39.08 at higher energy rates
🛡 Cost Protection: Three-phase efficiency provides greater protection against future price volatility

📥 Downloads & Resources

📄 Sta-Rite Single Speed Pumps Installation and User’s Guide – Complete installation instructions, electrical wiring diagrams, safety information, troubleshooting guide, and maintenance schedule (PDF)

📄 Sta-Rite 5P2R Series Product Datasheet – Technical specifications, performance curves, dimensions, and model comparison chart (PDF)

🏆 Why Choose the Sta-Rite SR0753N?

✅ Genuine Pentair Manufacturing – Made in Pentair’s Pisa, Italy facility with strict quality control, ensuring every pump meets the company’s demanding standards for residential and commercial equipment

✅ Three-Phase Energy Efficiency – Delivers 14% lower energy consumption compared to equivalent single-phase pumps, providing immediate and ongoing operational cost savings

✅ Premium Materials Throughout – Reinforced fibreglass body, stainless steel shaft, and carbon ceramic seals ensure decades of reliable service without premature component failure

✅ Proven 5P2R Platform – Based on Sta-Rite’s industry-standard 5P2R series design, trusted by pool professionals worldwide for residential and light commercial applications

✅ Low Maintenance Requirements – Sealed bearings, quality mechanical seal, and corrosion-resistant construction minimize ongoing maintenance needs and reduce total cost of ownership

✅ Professional Installation Support – Comprehensive installation manual, clear wiring diagrams, and established service network ensure proper setup and long-term support availability

✅ Future-Proof Design – Compatible with standard pool equipment and replacement parts, protecting your investment with long-term parts availability and service support

🎁 Why Buy From Parts4Tubs?

✅ Authorised Pentair Dealer – Genuine Sta-Rite products with full manufacturer warranty protection and access to official technical support

✅ Expert Product Knowledge – Specialist team with in-depth understanding of pool equipment to help you select the perfect pump for your specific installation requirements

✅ Fast UK Delivery – Quick dispatch from UK stock with reliable courier service ensuring your equipment arrives promptly and in perfect condition

✅ Competitive Pricing – Direct access to professional-grade equipment at competitive prices, delivering exceptional value without compromising on quality

✅ Technical Support Available – Knowledgeable staff ready to answer installation questions and provide guidance throughout the life of your pump

✅ Comprehensive Product Range – Complete selection of compatible accessories, replacement parts, and complementary pool equipment from trusted manufacturers

✨ Summary

The Sta-Rite SR0753N 0.75HP three-phase pool pump delivers professional-grade performance and reliability specifically engineered for residential and domestic pool applications. With genuine Pentair construction, energy-efficient three-phase motor technology, and premium corrosion-resistant materials throughout, this pump provides exceptional long-term value for homeowners with three-phase electrical supply.

The combination of reinforced fibreglass construction, stainless steel components, and advanced sealing technology ensures years of trouble-free operation with minimal maintenance requirements. Annual running costs of approximately £210 for typical seasonal use, coupled with the inherent efficiency advantages of three-phase power, make this an economically sound choice that will deliver reliable performance season after season while protecting against future energy price increases.