Overview
The Allen-Bradley 140M-C-A is a robust auxiliary contact block engineered for industrial motor control and protection applications. This 2-pole unit rated for 10A at 600V mounts directly to Allen-Bradley 140M-C2E motor protection circuit breakers (MPCBs), providing reliable feedback and signaling capabilities. Available as a used, fully functional surplus unit, it delivers the same performance as new equipment at a lower cost.
Key Features
- 2-pole configuration for versatile contact control
- 10A current rating at 600V AC nominal
- Compatible side or front-mount installation options
- Direct mounting interface with 140M-C2E MPCB series
- UL/CSA/CE certified for safety-critical applications
- Compact footprint; does not increase breaker width when front-mounted
Technical Specifications
- Rated Voltage: 600V AC
- Rated Current: 10A
- Poles: 2
- Contact Type: Auxiliary (typically 1NO + 1NC configuration)
- Mounting: Side or front-mount to 140M-C2E MPCB
- Terminal Type: Screw
- Certifications: UL, CSA, CE, CCC
- Width: Compact design (9mm standard for 140M series)
- Series: Allen-Bradley 140M Motor Protection CB Accessories
- Condition: Used, tested and fully functional
Typical Applications
The 140M-C-A auxiliary contact block excels in motor control circuits requiring status feedback and interlocking logic. Common applications include:
- Motor run/stop indication to PLC or HMI systems
- Protective tripping status monitoring
- Indicator light and alarm circuit control
- Motor starter interlocking and sequencing
- Industrial automation and process control feedback
- NEMA/IEC motor control panel integration
Compatibility & Replacements
Compatible With
- Allen-Bradley 140M-C2E manual motor protectors
- Allen-Bradley 140M motor protection circuit breaker series
- 140M-C, 140M-D, 140M-F frame breaker units
- Standard industrial PLC and HMI control inputs (24VDC/AC signal compatible)
- Motor control centers and starter panels
Replaces / Drop-In Replacement For
The 140M-C-A is the standard auxiliary contact block for 140M-C2E series breakers. Verify compatibility with your specific motor protector model before ordering; contact your system integrator if replacing an existing unit.
Works With
- Studio 5000 and RSLogix via standard I/O contact inputs
- Siemens TIA Portal motor control applications
- Allen-Bradley ControlLogix, CompactLogix PLC systems
- EtherNet/IP and PROFINET industrial networks
- Standard 24VDC and 120VAC control circuits
