Description
The Century UST1152 is a heavy-duty 1-1/2 horsepower pool and spa pump motor engineered for reliable, long-lasting performance in demanding residential and light commercial aquatic applications. Built around a robust 56J frame with a NEMA C face mount, this motor drops directly into most standard pool pump housings without the need for adapters or modifications.
Designed to operate on both 115V and 230V single-phase power supplies, the UST1152 offers installation flexibility across a wide range of electrical configurations. Its 3450 RPM synchronous speed delivers the high flow rates required for efficient pool filtration, while the 1.0 service factor and 1.5 THP (Total Horsepower) rating ensure the motor handles real-world pump loads without stress.
Century’s sealed switch design and sealed ball bearings protect internal components from moisture, debris, and the corrosive chemicals common in pool and spa environments, significantly extending service life and reducing maintenance requirements. The automatic thermal protector guards against overheating by shutting the motor down if operating temperatures exceed safe limits — and automatically resets once the motor cools, minimizing downtime.
The two-compartment housing keeps electrical connections isolated from the motor windings, adding an extra layer of safety and simplifying wiring. The open drip-proof (ODP) enclosure promotes airflow for effective cooling during continuous operation, while the CCWPE (counter-clockwise rotation when viewed from the pump end) rotation matches the standard drive direction of most popular pool pump brands.
Key Features
- 1-1/2 HP output with 1.5 THP rating for real-world pump performance
- 3450 RPM operating speed for high-efficiency filtration flow rates
- Dual-voltage operation: 115/230V AC, 18.6/9.3 Amps
- 56J frame with NEMA C face mount — fits most standard pool pump housings
- 1.0 service factor for dependable continuous-duty operation
- Sealed switch design protects against moisture and chemical ingress
- Sealed ball bearings for reduced maintenance and extended service life
- Automatic thermal protector with auto-reset for overtemperature protection
- Two-compartment housing for safe, organized wiring
- Open drip-proof (ODP) enclosure for effective motor cooling
- CCWPE rotation (counter-clockwise, pump end) — standard for most pool pumps
Specifications
- Brand: Century
- Model: UST1152
- Horsepower: 1-1/2 HP
- Total Horsepower (THP): 1.5
- Speed: 3450 RPM
- Voltage: 115/230V AC
- Amperage: 18.6A (115V) / 9.3A (230V)
- Service Factor: 1.0
- Frame: 56J
- Mount: NEMA C Face
- Enclosure: Open Drip-Proof (ODP)
- Rotation: CCWPE
- Bearings: Sealed Ball Bearings
- Protector: Automatic Thermal (Auto-Reset)
- Housing: Two-Compartment
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