Description
The Century ST1052 is a heavy-duty permanent split capacitor (PSC) pump motor engineered for demanding HVAC and fluid-handling applications. Built on the industry-standard 56J NEMA frame, this motor delivers reliable, single-speed performance at 3450 RPM with a threaded shaft and counter-clockwise (CCW) rotation at the pump end — making it a direct-fit replacement for a wide range of pump assemblies.
Key Specifications
- Horsepower: 1/2 HP
- Voltage: 115/230 VAC (dual voltage)
- Phase: Single Phase
- Speed: 3450 RPM, 1 Speed
- Full Load Amps: 11.0 A (115V) / 5.5 A (230V)
- NEMA Frame: 56J
- Enclosure: Open Drip Proof (ODP)
- Bearing Type: Ball Bearing
- Shaft Type: Threaded Shaft
- Rotation: Counter-Clockwise (CCW) — Pump End
- Motor Type: Permanent Split Capacitor (PSC)
Design & Performance Features
- Dual-voltage wiring (115/230V) provides installation flexibility for a variety of electrical configurations
- Ball bearing construction ensures long service life and smooth, low-friction operation
- Open Drip Proof (ODP) enclosure protects internal components from dripping liquids in standard indoor environments
- Threaded shaft with CCW pump-end rotation is purpose-built for direct pump coupling
- 56J NEMA frame offers broad cross-compatibility with pumps and mounting brackets across major manufacturers
- PSC design provides efficient, quiet operation with high starting torque for pump loads
Typical Applications
- Hydronic circulating pumps
- Water booster and transfer pumps
- HVAC pump system replacements
- Industrial and commercial fluid-handling equipment
The Century ST1052 is the dependable choice for contractors and technicians who need a proven, specification-grade pump motor. Its dual-voltage capability and standard 56J frame simplify installation and stocking, while ball bearing construction minimizes maintenance requirements over the long service life of the motor.
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