Overview
The Westinghouse 449-D431H01 is a precision DS (Direct Series) gear motor designed for industrial and commercial motion control. This Model 5050 gearmotor operates at 500RPM with 3.5A current draw, making it ideal for HVAC, refrigeration, and automation equipment requiring consistent, reliable torque delivery. The unit features dual-voltage capability (120VAC/125VDC), allowing flexible integration into AC or DC control systems. In used condition, this tested gearmotor provides cost-effective performance for replacement or retrofit applications.
Key Features
- Fixed 500RPM speed — Matched for precision-timed applications in circuit breaker operators and control devices
- Dual-voltage input — Operates on 120VAC or 125VDC without modification
- 3.5A rated current — Compact yet capable of handling moderate-load motion control tasks
- DS gear motor design — Specifically engineered for Westinghouse DS-series circuit breaker charge mechanisms
- Fully tested and functional — Used units inspected for operation prior to shipment
Technical Specifications
- Motor Type: DC/AC Gear Motor
- Model: 5050
- Speed (RPM): 500
- Current Rating: 3.5A
- Input Voltage: 120VAC or 125VDC
- Series Designation: DS Gear Motor
- Condition: Used, fully tested
Typical Applications
- Circuit breaker charge motors — Original equipment in Westinghouse DS-series circuit breaker operators
- HVAC control — Damper positioning, valve actuation, and motorized damper drives
- Refrigeration equipment — Oil management systems and compressor unload valve control
- Industrial automation — Low-speed, constant-torque motion in timed control sequences
- Equipment retrofit — Drop-in replacement for legacy Westinghouse gearmotor applications
Compatibility & Replacements
Compatible With
- Westinghouse DS-series circuit breakers and switchgear
- 120VAC or 125VDC industrial control power supplies
- DC or AC solenoid-operated equipment requiring timed motor actuation
- Legacy industrial automation and HVAC control panels
Replaces / Drop-In Replacement For
- Westinghouse Model 5050 gearmotor applications
- Powell 50960-G4 electrical gearmotor (electrically equivalent)
- Eaton 449-D431H21 (high-voltage variant of same series)
- Legacy DS charge motors requiring 500RPM, 3.5A, dual-voltage operation
Works With
- 120VAC industrial control circuits
- 125VDC battery backup and UPS systems
- Manual or automatic transfer switch mechanisms
- Any fixed-speed, constant-torque motor application rated for 3.5A input
