Overview
The Allen-Bradley 1492-CB1H005 /C is a compact single-pole manual motor controller circuit breaker designed to protect small AC motors and general-purpose electrical circuits from overcurrent and overload conditions. This Series C unit combines thermal overload protection with manual control, making it ideal for applications where reliable circuit interruption and operator safety are essential. The 0.5A rating suits fractional horsepower motors and light-load applications in industrial, commercial, and OEM control panels.
Key Features
- Single-pole manual motor controller with integrated circuit breaker function
- 0.5A thermal overload protection rating
- Series C design for proven reliability and compatibility with Allen-Bradley control systems
- Manual on/off lever control for operator-initiated circuit management
- Compact footprint suitable for space-constrained panel applications
- Thermal trip protection against sustained overloads and motor stall conditions
Technical Specifications
The 1492-CB1H005 /C meets Allen-Bradley standards for manual motor controllers and is fully compatible with standard DIN rail mounting in control enclosures. Its thermal protection mechanism responds to prolonged overcurrent conditions, automatically tripping to isolate the protected circuit. This breaker is suitable for use with 120V, 277V, and similar control voltages common in North American industrial installations.
Typical Applications
- Fractional Horsepower Motors: Protection for 1/4 HP and smaller AC motor circuits
- Control Panel Integration: DIN rail mounting in machine control, process automation, and test equipment enclosures
- Motor Stall Protection: Thermal overload detection in conveyor systems, fans, and pump applications
- OEM Equipment: Factory-built control systems and industrial machinery requiring manual operator override capability
Compatibility & Replacements
The 1492-CB1H005 /C is a direct replacement for discontinued or worn units in existing Allen-Bradley control systems. It maintains full compatibility with 1492-series contactor and overload relay combinations. When upgrading or maintaining control panels, verify voltage class and pole configuration to ensure proper integration. Related Allen-Bradley single-pole manual motor controllers in higher amperage ratings (1492-CB1H010, 1492-CB1H025, etc.) are available for applications requiring different overload settings. Always consult the original equipment documentation or contact technical support to confirm correct part selection for your specific circuit requirements.
