For both inground and above-ground pool owners, the heart of the circulation system is the pump motor. Without a strong, efficient, and long-lasting motor, filtration and water clarity suffer — and so does the overall pool experience. That’s why professionals and serious homeowners trust Century motors by Regal Beloit.
The Regal Beloit B2855 Century 2HP 230V Stainless Steel Pool Pump Motor is a continuous-duty, high-performance motor designed for long service life and dependable performance in demanding pool environments. With its 3450 RPM speed, square flange design, single-phase power setup, and stainless-steel build, it is a premium replacement motor engineered to keep your pool water circulating efficiently for years.
If you need a robust, replacement-grade pump motor that balances power, durability, and energy efficiency, the B2855 is a proven solution trusted across residential and commercial pool setups.
- Sealed Ball Bearings
- 50C Ambient
- Stainless Steel Shaft
- Switchless
Key Features & Specifications
- Brand: Regal Beloit (Century)
- Model: B2855
- Horsepower (HP): 2 HP
- Voltage: 230V (single-phase)
- Speed: 3450 RPM (high-speed continuous duty)
- Frame Type: 56Y Square Flange
- Enclosure: Open Drip Proof (ODP)
- Shaft Material: Stainless Steel for corrosion resistance
- Bearings: Sealed ball bearings for quiet, smooth operation
- Mounting: Square flange for compatibility with many inground and above-ground pool pumps
- Duty Cycle: Continuous
- Applications: Pool pumps, spa pumps, water circulation, filtration, and similar high-demand aquatic applications
- Design Life: Engineered for high durability and longer-than-average service intervals
Design & Build Quality
Heavy-Duty Construction
Regal Beloit’s Century line is renowned for professional-grade durability. The B2855 features stainless steel components, ensuring maximum resistance to rust, corrosion, and pool chemicals. Its robust casing and motor housing protect internal components even in outdoor environments.
Square Flange Mounting
The 56Y square flange design makes this motor compatible with many popular inground and above-ground pool pumps, ensuring easy installation as a replacement motor without major modifications.
Engineered for Longevity
With sealed ball bearings, stainless-steel shafting, and durable windings, the B2855 is designed for continuous operation in demanding conditions. Its ODP (Open Drip Proof) enclosure helps keep the motor cool while protecting against splashes and debris.
Performance
High Horsepower Output
With 2 HP of sustained power, the B2855 is ideal for medium to large pool systems that demand consistent, high-volume water circulation. Whether paired with a cartridge filter, sand filter, or saltwater system, it delivers reliable water flow.
3450 RPM Speed
At 3450 RPM, this motor provides strong suction and pressure, making it effective for pools with features like waterfalls, spa jets, or multi-return circulation setups.
Continuous Duty Rating
Unlike economy-grade motors, the B2855 is rated for continuous operation, meaning it can handle long filtration cycles without overheating or losing performance efficiency.
Installation & Compatibility
- Square Flange Design: Simplifies replacement for motors that already use the 56Y square flange standard.
- 230V Power: Compatible with most pool electrical setups requiring 230V single-phase service.
- Wiring & Setup: Straightforward connections for professional installers or skilled DIYers.
It is commonly used as a replacement motor for brands like Pentair, Hayward, and Sta-Rite pumps (verify compatibility before purchase).
Efficiency & Cost of Ownership
Energy Efficiency
While not a variable-speed motor, the B2855 is optimized for efficient single-speed performance. For pool owners with larger systems or higher water features, its power-to-efficiency ratio ensures long-term savings compared to lower-quality motors that burn out quickly.
Longevity = Lower Lifetime Cost
Because the motor is built with stainless steel and high-grade bearings, it offers longer service intervals than cheaper replacements. Over 5–7 years of use, this can save homeowners significant money in motor replacements and downtime.
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Pros & Strengths
✅ Why Choose the Century B2855?
- 2 HP power – ideal for medium to large pools.
- Stainless steel shaft – resists rust, chemical exposure, and saltwater corrosion.
- 3450 RPM – ensures strong, reliable water circulation.
- Square flange compatibility – easy replacement for many popular pumps.
- Continuous duty rating – designed for long filtration cycles.
- Durable bearings & windings – quieter, longer-lasting operation.
- Trusted brand (Century/Regal Beloit) – widely used by pool pros.
Cons & Limitations
❌ Things to Keep in Mind
- Single-speed only (not as energy-efficient as variable-speed motors).
- Requires 230V setup – not suitable for 115V systems.
- Professional installation recommended for optimal safety and performance.
- Open Drip Proof (ODP) design means it should be installed in a sheltered, ventilated location.
Ideal Applications
The B2855 is best suited for:
- Residential pools with medium to large volumes.
- Inground & above-ground pools needing high-performance replacement motors.
- Pools with additional water features like spas, waterfalls, or pressure-side cleaners.
- Owners prioritizing long-term durability over budget single-season motors.
Not ideal for:
- Small, above-ground pools with low horsepower requirements.
- Users looking for energy-saving variable-speed technology.
Comparison with Competitors
- Vs Century B2848 (1.5HP): The B2855 offers more power (2HP vs 1.5HP), making it better for larger pools.
- Vs Hayward SPX series motors: Regal Beloit motors often run quieter and have longer stainless-steel shaft life.
- Vs Variable-Speed Motors: While less energy-efficient, the B2855 is simpler, more affordable upfront, and requires less complex programming.
Final Verdict
The Regal Beloit B2855 Century 2HP Pool Pump Motor is a professional-grade, stainless-steel, continuous-duty motor that delivers durable, high-performance operation for pool circulation systems. It’s built to handle demanding environments with quiet operation, strong horsepower, and long service life.
For pool owners who want reliability, corrosion resistance, and consistent water flow, the B2855 is one of the best single-speed replacement motors available.
👉 Verdict: A rock-solid 2HP pool pump motor — perfect for medium to large pools that need dependable, long-lasting performance.
FAQs – Regal Beloit B2855
Q1. Is the B2855 compatible with my pump?
It fits pumps with a 56Y square flange mount — common in Pentair, Hayward, and Sta-Rite models (verify before purchase).
Q2. What voltage does it run on?
It requires 230V single-phase power.
Q3. Can I install it myself?
If you’re skilled with pool equipment and electrical connections, yes. Otherwise, professional installation is recommended.
Q4. How long will it last?
With proper installation and care, 5–7 years or more is typical.
Q5. Does it handle saltwater pools?
Yes, thanks to its stainless steel shaft and corrosion-resistant design.
Q6. Is it quiet?
Quieter than many competitors due to sealed ball bearings and smooth windings, though all 3450 RPM motors generate some hum.
Q7. Is it variable-speed?
No, it’s a single-speed motor optimized for performance and durability.
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