Description
Fractional horsepower electric motor designed for pump and general-purpose applications. The Centurion Pro HST080 is a 0.80 THP (total horsepower) open motor in a 56J frame that replaces or matches motors with equivalent THP ratings. It is intended for installations requiring accessible wiring and service features, such as a PCB terminal board and accessible shaft for coupling or pump connection.
Quick Answer: What Is the Century HST080?
The Century HST080 is a pool pump motor: Century Centurion Pro Pump Motor 0.8 hp Single-Phase 115/230V 56J Round. It is brand new, ships in 1-2 business days, and is backed by the Century manufacturer warranty.
Century HST080 Specifications
| Brand | Century |
|---|---|
| Equipment Type | Pool Pump Motor |
| Model Number | HST080 |
| Frame Size | 56J |
| Horsepower | 0.8 hp |
| Voltage | 115/230 V |
| Phase | 1 |
| UPC | 786674069788 |
Key Features
- 0.80 THP rating for replacement or matching of existing motors
- 56J frame size for common pump and equipment mounts
- Hybrid end frame with sealed 203 bearings at both ends
- Open terminal board and wiring compartment for easy installation
- Triple seal protection on pump-end bearing for improved sealing
- Voltage change device for field voltage adjustments
- 303 stainless steel shaft with 7/16" definitive shaft access
- UL 1081 design, rated for 50°C ambient
How It Works
A pool pump motor drives the impeller in the wet end of the pump. Replacement motors let you restore a pump without replacing the housing, strainer and plumbing. Motors are defined by frame (48Y or 56J threaded shaft, square flange or C-face), horsepower, service factor (SF), total horsepower (THP = HP x SF), voltage, speed type and enclosure (ODP or TEFC).
How to Choose the Right Pool Pump Motor
- Match the frame and shaft style exactly: square-flange 56Y vs threaded-shaft 48Y/56J and C-face are not interchangeable.
- Match horsepower and service factor (THP) to the impeller. A motor that is too strong for the impeller can overload; too weak and the pump underperforms.
- Confirm voltage and whether the motor is single speed, two-speed or variable speed.
- Check the DOE replacement motor efficiency rules that apply to dedicated-purpose pool pump motors before ordering.
- Order a seal kit and O-rings with the motor; reuse of the old shaft seal is a common cause of early failure.
If you are replacing an existing part, the fastest way to confirm compatibility is to match the brand and model number on the old equipment. Send us the model number or a photo of the label and our team will help confirm the HST080 is the right fit before you order.
Installation and Safety
Disconnect and lock out power before work. Motor replacement involves line-voltage wiring and bonding, which should be done by a licensed electrician or qualified pool technician following NEC Article 680 and the manufacturer's instructions. Replace the shaft seal whenever the motor and wet end are separated.
Maintenance Tips
- Keep the motor dry and well ventilated; water from a failed seal is the top cause of bearing failure.
- Listen for screeching or grinding that indicates bearing wear.
- Check wiring connections for heat discoloration annually.
- Shade motors from direct sun where possible, without blocking airflow.
What's Included
This listing is for the Century HST080 as described in the specifications above. Plumbing, wiring, unions and accessories are not included unless they are listed in the product name or specifications.
Built for Homeowners, Pool Pros and Property Managers
- Homeowners: match your existing model number, then reach out if you want a second set of eyes on compatibility before you order.
- Pool service pros and builders: order quickly, track every shipment, and reorder common parts for your routes and builds.
- Property managers and commercial pools: standardize equipment across properties and plan replacements with help from our team.
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Frequently Asked Questions About the Century HST080
How do I know which motor I need?
Read the old motor's nameplate: frame, HP, SF, voltage, RPM and shaft type. Match those, or contact our team with the nameplate photo.
Should I replace the motor or the whole pump?
If the wet end, basket and lid are in good condition, a motor replacement is cost-effective. If the housing is cracked or the pump is very old, a complete pump is often the better value.
What is THP?
Total horsepower: rated horsepower multiplied by service factor. Matching THP to the impeller keeps the motor within its design load.
Is this the genuine Century part?
Yes. It is brand new Century equipment (model HST080) covered by the manufacturer warranty. Warranty terms vary by product and application; see the manufacturer documentation or ask our team.
