Century RS1051A 1/2 HP 1725 RPM 115/230V Capacitor Start Resilient Base Motor

Description

The Century RS1051A is a heavy-duty capacitor start motor engineered for demanding HVAC and industrial applications where reliable, high-torque starting performance is essential. Built on the industry-standard 56 frame with a resilient base mount, this motor integrates seamlessly into a wide range of equipment configurations and replacement scenarios.

Electrical Specifications

• Horsepower: 1/2 HP
• Speed: 1725 RPM
• Voltage: 115/230V AC
• Amperage: 8.6 A (115V) / 4.3 A (230V)
• Service Factor: 1.00

Mechanical Specifications

• Frame: 56 (NEMA standard)
• Bearings: Sleeve bearings for quiet, low-maintenance operation
• Enclosure: Open construction for effective air cooling
• Mount: Resilient base for vibration dampening

Performance & Protection Features

• Motor Type: Capacitor start for high starting torque
• Overload Protection: Automatic overload protector for reliable thermal protection
• Rotation: Reversible — field-selectable direction of rotation
• High start torque capability for loads requiring extra starting force

Key Benefits

• Dual-voltage (115/230V AC) design offers installation flexibility
• NEMA 56 frame ensures broad cross-compatibility with OEM and aftermarket equipment
• Automatic overload protector guards against motor burnout due to thermal overload
• Resilient base mount reduces vibration transmission to the surrounding structure
• Reversible rotation simplifies field installation and replacement
• Open enclosure promotes airflow and efficient motor cooling

The Century RS1051A is an ideal replacement or new-installation motor for compressors, pumps, fans, and other HVAC-related machinery requiring dependable capacitor start performance. Its combination of dual-voltage capability, automatic overload protection, and reversible rotation makes it one of the most versatile motors in its class.