Overview
The Allen-Bradley 1492-CB3 is a molded-case DIN rail circuit breaker designed for three-phase industrial control and distribution systems. Manufactured by Rockwell Automation, this 3-pole breaker supports 480VAC rated systems with a compact footprint suitable for control panel installations. The 1492-CB3 series is available in multiple amperage ratings (3A, 5A, 10A, 20A, 25A, 30A) and trip curve options, making it highly flexible for retrofit and new build applications in manufacturing, process control, and facility automation.
Key Features
- 3-pole design with 6 terminals for three-phase circuit protection
- 480VAC rated operation suitable for industrial three-phase systems
- DIN rail mounting for easy installation in standard control enclosures
- Multiple amperage ratings from 3A to 30A to match load requirements
- Thermal-magnetic trip mechanism for reliable fault detection
- Compact form factor reduces panel space requirements
- Series A and Series B variants available for different specifications
Technical Specifications
The Allen-Bradley 1492-CB3 breaker delivers consistent performance across a range of industrial duty cycles. Key technical attributes include thermal and magnetic trip protection, rated interrupting capacity, and standard IEC/DIN mounting compliance.
Typical Applications
- Factory automation and machinery control circuits
- Three-phase motor protection in industrial panels
- Distributed control system protection
- HVAC and facility equipment branch circuits
- Process control and batch automation systems
- Retrofit installations in existing automation cabinets
Compatibility & Replacements
The Allen-Bradley 1492-CB3 integrates into standard automation control architectures using conventional circuit protection practices. Verify compatibility with your specific panel voltage, amperage requirements, and mounting configuration before ordering.
Compatible With
- Standard DIN rail (35mm) enclosure systems
- Three-phase 480VAC industrial electrical systems
- Conventional panel-mounted control and distribution designs
- Rockwell Automation control systems and starter packages
- Third-party industrial automation equipment rated for 480VAC
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 1492-CB3 is available in multiple amperage ratings; confirm the exact current rating of your original breaker to ensure proper protection coordination.
Works With
- Standard DIN rail mounting systems
- Three-phase motor starters and soft starters
- Conventional AC disconnect and control circuits
- Industrial panel enclosure designs (NEMA 4X, IP65-rated cabinets)
- Allen-Bradley PowerFlex and other industrial drives requiring branch protection
