Description
The Century H657V1 is a heavy-duty, two-speed three phase motor engineered for reliable belted drive applications in commercial and industrial HVAC systems. Featuring a rugged 56Y frame with ODP (Open Drip-Proof) enclosure and a resilient base mounting design, this motor delivers dependable performance across a wide range of air-handling and fan-drive installations.
Power & Electrical Specifications
- Horsepower: 3/4 HP (high speed) / 1/3 HP (low speed)
- Speed: 1725 RPM (high) / 1140 RPM (low)
- Speeds: 2-2-VT (two-speed, variable torque)
- Voltage: 200–230V AC
- Amperage: 2.5–2.6 A (high speed) / 1.5–1.6 A (low speed)
- Phase: Three Phase
- Service Factor: 1.25
Mechanical Specifications
- Frame: 56Y
- Enclosure: ODP (Open Drip-Proof)
- Bearing Type: Ball Bearing
- Drive Type: Belted Drive
- Mounting: Resilient Base
- Rotation: Reversible
- Shaft: 5/8″ x 1-7/8″ with Key
- Overload Protector: None
Key Features & Benefits
- Two-speed operation provides flexible airflow control and energy savings at low-speed settings
- 1.25 service factor allows the motor to handle occasional overload conditions without damage
- Ball bearings ensure smooth, low-friction operation and extended service life
- Reversible rotation offers installation flexibility for a variety of drive configurations
- Resilient base mounting reduces vibration transmission to the equipment structure
- ODP enclosure suits indoor, protected environments typical of commercial air handlers and fan coil units
- 56Y frame is a widely used NEMA standard, simplifying replacement and retrofit applications
Typical Applications
- Commercial air handlers and fan coil units
- Belted blower assemblies in rooftop and built-up HVAC systems
- Industrial ventilation and exhaust fan drives
- Two-speed fan systems requiring variable airflow control
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