Overview
The Baldor BC138 CN3000A57 is a single-phase DC motor speed controller designed for industrial and commercial applications requiring proportional speed control of small DC motors. Built to U.S. standards, this unit delivers dependable performance in NEMA 1 (general purpose) environments and is commonly found in legacy and new equipment installations.
Key Features
- 115 VAC single-phase input with 50/60 Hz compatibility
- Non-regenerative operation—safe for standard DC motor applications
- 1/3 HP rated capacity, suitable for 1/4 HP to 1/2 HP DC motors
- NEMA 1 enclosure for clean, dry indoor environments
- Simple terminal connections for straightforward integration
- Compact, wall-mountable design
Technical Specifications
This BC138 CN3000A57 speed control meets the electrical requirements of typical small DC motor retrofits and modernization projects.
Typical Applications
- DC motor speed regulation on conveyors and material handling equipment
- Equipment retrofits requiring variable-speed DC motor control
- Industrial automation components for legacy machinery
- Small motor control in production and test equipment
- Maintenance and repair applications for 1/4–1/2 HP DC motors
Compatibility & Replacements
Compatible With
- DC motors rated 1/4 HP to 1/2 HP
- 115 VAC single-phase power circuits (50–60 Hz)
- NEMA 1 control enclosures and switchboards
- Industrial automation and equipment control systems
Replaces / Drop-In Replacement For
The BC138 CN3000A57 is a legacy component. Verify compatibility with your system integrator before ordering to confirm this unit matches your specific motor and control requirements.
Works With
- Standard DC motor wiring and terminal connections
- Potentiometer-based speed adjustment circuits
- Manual and semi-automatic speed control systems
