Overview
The Allen-Bradley 140M-C2E-A63 is a manual motor protector circuit breaker that combines disconnecting means, short-circuit magnetic protection, and overload thermal protection for three-phase industrial motor applications. Rated 0.63 A at 600V AC, this unit is ideal for motor branch circuits requiring Class 10 trip response and is UL/CSA listed for both manual motor controller and self-protected combination motor controller applications.
Key Features
- Class 10 trip—responds to overload within 10 seconds or less
- Standard magnetic trip fixed at 13× instantaneous pickup for branch-circuit and short-circuit protection
- Manual rotary operation with visual trip/test indication
- DIN rail mounting for space-efficient panel layouts
- Lockable twist knob prevents inadvertent tripping
- Adjustable current range 0.40–0.63 A for motor selection flexibility
- Optional auxiliary contacts (front/side) and undervoltage trip available
- UL/CSA Listed (UL508) for compliance with NEC and CEC requirements
Technical Specifications
- Frame Size: C
- Rated Current: 0.40–0.63 A (adjustable)
- Rated Voltage: 600V AC
- Poles: 3-phase
- Mounting: DIN Rail
- Operation: Rotary with manual switching
- Trip Class: 10 (trips within 10 seconds)
- Magnetic Trip Setting: Standard (13× instantaneous pickup)
- Breaking Capacity: Standard Performance
- Certifications: UL/CSA Listed (UL508), suitable for manual motor controller and self-protected combination motor controller applications
- Screw Terminals: Included for easy field installation
- Condition: New in Box
Typical Applications
The 140M-C2E-A63 is commonly deployed in:
- Individual motor branch circuits requiring short-circuit and overload protection
- Manual motor control stations and control panels
- Combination motor controllers paired with 100-C series contactors
- Industrial automation systems where NEC/CEC compliance is required
- Retrofit installations replacing legacy or failed motor protectors
Compatibility & Replacements
Compatible With
- Three-phase AC motor circuits up to 600V
- 100-C series contactors for Type F combination motor controller configuration
- Manual motor control and self-protected motor controllers
- DIN rail–mounted control panels and enclosures
- Industrial automation systems meeting NEC Article 430 and CEC rules
Replaces / Drop-In Replacement For
- Other 140M Frame C breakers in the same amperage family (140M-C2E-A16, 140M-C2E-A25, 140M-C2E-A40)
- Legacy motor overload relays and thermal protectors when combined with appropriate magnetic protection
- Verify specific replacement compatibility with your system integrator before ordering
Works With
- Allen-Bradley 100-C series contactor for Type F combination motor controller certification
- Studio 5000 and FactoryTalk systems for motor control logic and monitoring
- EtherNet/IP and PROFINET networks via connected control platforms
- Standard three-phase AC power distribution at 600V and below
- Industrial motor protection software and remote monitoring systems




