Description
The Century ST1102 is a heavy-duty Permanent Split Capacitor (PSC) pump motor engineered for demanding HVAC and pumping applications. Rated at 1 horsepower and built around a 56J NEMA frame, this motor delivers consistent, dependable performance across a wide range of commercial and residential pump installations.
Electrical Specifications
- Voltage: 115/230 VAC
- Phase: Single Phase
- Amperage: 18.6 A (115V) / 9.3 A (230V)
- Motor Type: Permanent Split Capacitor (PSC)
- Speed: 1 Speed
Mechanical Specifications
- Horsepower: 1 HP
- Speed: 3450 RPM
- NEMA Frame Size: 56J
- Shaft Type: Threaded Shaft
- Rotation: Counter-Clockwise (CCW) from Pump End
- Bearing Type: Ball Bearing
- Enclosure: Open Drip Proof (ODP)
Key Features & Benefits
- Permanent Split Capacitor design provides smooth, efficient starting and running performance
- Ball bearing construction ensures long service life and reduced maintenance requirements
- Open Drip Proof (ODP) enclosure protects internal components from dripping liquids in standard installation environments
- Dual-voltage capability (115/230V) offers flexible installation across a variety of electrical systems
- 56J NEMA frame ensures broad compatibility with standard pump mounting configurations
- Threaded shaft accommodates direct pump coupling for secure, vibration-resistant connections
- CCW rotation from pump end is ideal for standard centrifugal pump applications
- Single-speed operation delivers reliable, consistent flow output
Typical Applications
- Hydronic heating and cooling circulating pumps
- Water supply and transfer pumps
- Pool and spa pump systems
- General HVAC pump motor replacements
The Century ST1102 is a trusted replacement and OEM-compatible motor solution for professionals who demand reliability and performance. Its robust construction, flexible voltage rating, and industry-standard 56J frame make it a go-to choice for HVAC technicians and mechanical contractors.







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