Description
The Century C742V1 is a heavy-duty, two-speed single-phase motor engineered for demanding HVAC and commercial applications where variable airflow or load control is required. With dual horsepower ratings and dual speeds selectable via its two-winding design, this motor delivers outstanding flexibility and energy efficiency across a wide range of fan and blower applications.
Motor Performance Specifications
- Horsepower: 3/4 HP (high speed) / 1/3 HP (low speed)
- Speed: 1725 RPM (high) / 1140 RPM (low)
- Voltage: 230V AC
- Amperage: 5.0 A (high speed) / 3.2 A (low speed)
- Service Factor: 1.00
- Winding Type: 2 Winding, Variable Torque
Construction & Design Features
- Frame: NEMA 56 — industry-standard for easy drop-in replacement
- Enclosure: Open Drip Proof (ODP) — suitable for clean, protected indoor environments
- Bearing Type: Sleeve Bearing — quiet operation, ideal for low-vibration applications
- Motor Start: Capacitor Start — delivers high starting torque for reliable startup under load
- Overload Protection: Automatic Overload Protector — guards motor windings against thermal damage
- Mounting: Resilient Base — reduces vibration transmission to the equipment structure
- Rotation: Reversible — adaptable to CW or CCW installations
- Speeds: 2-Speed — allows high/low speed selection for variable torque loads
Application Suitability
The C742V1’s two-speed, two-winding variable torque design makes it an excellent choice for evaporator fans, condenser fans, blower assemblies, and other HVAC air-moving equipment where multi-speed operation is needed. The automatic overload protector and resilient base mount ensure long service life and reduced noise in installed systems.
Why Choose the Century C742V1?
- Dual-speed operation reduces energy consumption at low-demand conditions
- NEMA 56 frame ensures broad cross-reference compatibility
- Reversible rotation simplifies field installation and replacement
- Capacitor start design provides reliable, high-torque motor startup
- Automatic overload protector extends motor life and reduces service calls
- Resilient base minimizes vibration and noise in the system
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