Description
US Motors 3261 Capacitor Start Capacitor Run Circulating Pump Motor
The US Motors 3261 is a heavy-duty capacitor start, capacitor run (CSCR) circulating pump motor engineered for reliable, long-term performance in hydronic heating and cooling systems. Built to NEMA 56Y frame standards and featuring an open drip proof (ODP) enclosure, this single-phase motor delivers consistent torque and smooth operation across a wide range of circulating pump applications.
Key Specifications
- Horsepower: 3/4 HP
- Voltage: 115/208-230 VAC
- Phase: Single Phase
- Speed: 1725 RPM
- Amperage: 8.2 A (115V) / 4.7–4.2 A (208-230V)
- NEMA Frame Size: 56Y
- Enclosure: Open Drip Proof (ODP)
- Bearing Type: Ball Bearing
- Mount Type: Bracket Mount
- Shaft Diameter: 5/8″
- Rotation: Reversible
- Motor Type: Capacitor Start, Capacitor Run (CSCR)
Product Highlights
- Capacitor Start, Capacitor Run (CSCR) Design: Delivers high starting torque and improved running efficiency, making it ideal for demanding circulating pump loads.
- Reversible Rotation: Flexible installation accommodates a variety of pump configurations and field requirements without additional hardware.
- 56Y NEMA Frame: Industry-standard frame sizing ensures direct drop-in compatibility with most circulating pump assemblies.
- Ball Bearing Construction: Provides smooth, low-friction operation and extended service life compared to sleeve bearing alternatives.
- Open Drip Proof (ODP) Enclosure: Protects internal components from dripping liquids and falling debris in typical indoor mechanical room environments.
- Dual Voltage Capability: Factory-wired for 115V or field-convertible to 208-230V, offering installation flexibility for various electrical systems.
- 5/8″ Shaft Diameter: Compatible with standard circulating pump couplings for straightforward motor replacement or new installations.
- Bracket Mount: Simplifies mounting and alignment during installation and service.
Applications
- Hydronic heating and cooling circulating pumps
- Hot water recirculation systems
- Boiler feed and distribution pump drives
- Commercial and residential HVAC hydronic systems
Why Choose US Motors?
US Motors is a trusted name in HVAC and industrial motor solutions, known for quality construction, broad application compatibility, and consistent performance. The 3261 is built to meet the demands of professional HVAC contractors and mechanical engineers who require a dependable, long-lasting motor solution for circulating pump applications.
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