Description
Key Technical Specifications
- Product Model: HD62FK654
- Manufacturer: Century
- System Platform: Carrier HVAC
- Horsepower: 7.5 HP
- Voltage Rating: 230/460 V AC dual voltage
- Full Load Amps: 19.4/9.7 A
- Frequency: 60 Hz
- Phase: 3-phase
- Speed: 1760 RPM (full load)
- Rotation Direction: Counterclockwise (CCW) from drive end
- Enclosure Type: Open Drip Proof (ODP)
- NEMA Frame Size: 213T
- Shaft Diameter: 1 inch
- Shaft Length: 3.5 inches
- Service Factor: 1.15 for overload protection
- Insulation Class: F (155°C temperature rise)
- Efficiency Class: NEMA Premium equivalent
- Mounting Type: Rigid base with foot mounts
- Overall Dimensions: 15 in (L) x 9 in (W) x 13 in (H)
- Weight: 151 lbs
- Certifications: UL listed, CSA certified, CE compliant for global deployment
- Ambient Temperature Range: -20°C to 40°C
- Humidity Tolerance: Up to 95% non-condensing
- Vibration Limit: 3.5 mm/s per ISO 10816 standards
Technical Architecture & Functional Positioning
The HD62FK654 positions itself as a workhorse in the actuator layer of HVAC and industrial ventilation systems, where it directly couples to impeller assemblies to generate the airflow necessary for heat exchange, filtration, or material transport. In Carrier air handler configurations, it integrates downstream from variable frequency drives (VFDs) or soft starters, converting electrical energy into mechanical rotation with minimal harmonic distortion. This placement ensures balanced load distribution across the drive train, preventing upstream stress on control transformers or circuit breakers during startup surges.
Core to its design is a cast iron frame with copper windings and Class F insulation, which enhances thermal dissipation and extends operational life under continuous duty cycles. The ODP enclosure allows convective cooling while protecting against incidental drips, leveraging aluminum fins for heat rejection efficiency. Embedded thermal overload protectors interrupt power upon exceeding safe temperatures, a critical safeguard in enclosed cabinets where ventilation might be restricted. These elements draw from NEMA MG-1 standards, optimizing for high starting torque—up to 200% of full load—essential for overcoming blower inertia without excessive inrush currents that could trip protective relays.
Engineers value this motor for resolving common pain points in air movement systems, such as efficiency losses from mismatched sizing or premature bearing wear from misalignment. Its 1.15 service factor permits brief overloads, accommodating variable loads like seasonal humidity spikes in process drying applications. In global installations, the dual-voltage capability simplifies field wiring for international grids, reducing commissioning time and costs. Overall, the architecture prioritizes reliability in demanding environments, where MTBF exceeds 50,000 hours, minimizing unplanned outages in facilities reliant on consistent airflow for compliance with air quality regulations.
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