Overview
The Allen-Bradley 1492-CB-3-G-150 is a 3-pole manual motor controller engineered for reliable motor startup and control in industrial automation systems. Rated for 480V AC and 65V DC operation, this unit delivers dependable switching and protection for motor-driven equipment in demanding manufacturing and process control environments. The 1492-CB-3-G-150 combines manual operation with integrated circuit-breaker protection, making it a popular choice for retrofit and replacement applications in legacy control panels.
Key Features
- 3-Pole Configuration: Provides simultaneous control and protection across all three phases of AC motor circuits
- Dual Voltage Rating: Compatible with both 480V AC main control circuits and 65V DC auxiliary control circuits
- Manual Operation: Direct-acting manual starter mechanism requires no external power, ensuring reliable operation even during power anomalies
- Integrated Circuit Breaker: Built-in thermal-magnetic protection eliminates the need for external overload relays in many applications
- Robust Industrial Design: Heavy-duty construction rated for DIN rail or panel mounting in harsh manufacturing environments
Technical Specifications
The following specifications are based on the 1492-CB series manual motor controller standard ratings:
- Voltage Rating: 480V AC / 65V DC
- Poles: 3-Pole
- Type: Manual Motor Controller with Integrated Circuit Breaker
- Mounting: DIN Rail or Panel Mount
- Protection: Thermal-Magnetic Overload
- Manufacturer: Allen-Bradley (Rockwell Automation)
- Series: 1492-CB Manual Motor Controller Series
- Operating Temperature Range: -10°C to +70°C (typical for industrial controllers)
- Condition: Used, Fully Functional
Typical Applications
The 1492-CB-3-G-150 is ideal for:
- Motor Starters: Direct-on-line (DOL) starting and protection for 3-phase AC motors in manufacturing systems
- Pump and Compressor Control: Manual on/off switching for motor-driven compressors, pumps, and fans
- Legacy System Replacement: Drop-in substitute for older 1492-CB models in retrofit and modernization projects
- Manual Control Circuits: Applications where operator manual control is preferred over automatic control
- Hazardous Location Applications: Suitable for environments where emergency manual shutdown capability is essential
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix and ControlLogix platforms (via auxiliary DC control circuits)
- Standard 3-phase 480V AC motor systems
- DIN rail industrial control enclosures
- IEC 60947-2 compliant industrial motor control systems
Replaces / Drop-In Replacement For
- Allen-Bradley 1492-CB1 series manual motor controllers (lower amperage)
- Allen-Bradley 1492-CB2 series 2-pole controllers (with 3-pole adapter configuration)
- Legacy Eaton / Cutler-Hammer 3-pole manual starters with equivalent amperage ratings
- Verify exact compatibility with your system integrator before ordering, as mounting and terminal configurations may vary by specific model.
Works With
- Studio 5000 (requires manual integration; no EtherNet/IP on this legacy component)
- RSLogix platforms (configuration as hardwired manual starter)
- DC control circuits rated 65V DC and below
- Standard industrial electrical standards (UL, CSA, IEC 60947-2)
