Overview
The Allen-Bradley 140M-C2E-C16 is a Bulletin 140M motor protection circuit breaker (MPCB) engineered for comprehensive motor circuit management in industrial control applications. This C-frame, 3-pole device provides both overload and short-circuit protection, making it a critical component for motor branch circuit safety. With a 16A rating and adjustable thermal trip range from 10 to 16 amps, the 140M-C2E-C16 accommodates various motor loads while delivering precise protection in demanding environments.
Key Features
- Thermal-Magnetic Trip: Adjustable thermal overload protection (10–16A) combined with fixed magnetic short-circuit protection at 208 amps
- Class 10 Trip Curve: Ensures rapid response to overload conditions within 10 seconds or less
- High Breaking Capacity: 30 kA at 480Y/277V AC; 65 kA at 400V AC
- DIN Rail Mount: Compact frame size (C) fits standard control panel installation
- Visible Trip Indication: Manual push-to-test indicator distinguishes between overload and short-circuit events
- Phase Loss Protection: Protects motors from single-phase operation
- UL/CSA Listed: Approved for manual motor controller and combination motor controller applications per UL 508
Technical Specifications
- Rated Current: 16 A
- Thermal Trip Range: 10 – 16 A (adjustable)
- Magnetic Trip Current: 208 A (fixed)
- Voltage Rating: 600V AC maximum; 480V 60 Hz standard
- Frame Size: C
- Poles: 3-pole for three-phase motors
- Breaking Capacity: 30 kA @ 480Y/277V AC; 65 kA @ 400V AC
- Thermal Class: Class 10 (trips ≤10 seconds at 1200% rated current)
- Mounting: DIN rail, rotary operation
- Motor Capability: Up to 15 hp @ 575V, three-phase
- Dimensions: 91 mm (H) × 45 mm (W) × 54.9 mm (D)
- Weight: 0.71 lbs
- Terminals: Screw lug connection
- Certification: UL/CSA Listed per UL 508
- Series/Bulletin: 140M, Series B
Typical Applications
The 140M-C2E-C16 is suited for:
- Industrial motor branch circuit protection
- HVAC compressor and pump motor control
- Conveyor system motor protection
- Manufacturing equipment requiring reliable motor safeguards
- Combined with Bulletin 100 contactors as Type E combination motor controllers
- Panel-mounted manual motor controllers in industrial control cabinets
Compatibility & Replacements
Compatible With
- Bulletin 100 series motor contactors for Type E combination motor control
- Allen-Bradley auxiliary contact modules and undervoltage trip devices
- Standard three-phase 480V, 575V, and 600V AC industrial motor systems
- DIN rail control panel installations (standard 35 mm rail)
- UL/CSA listed motor branch circuit applications per NEC/CEC requirements
Replaces / Drop-In Replacement For
- The 140M-C2E-C16 is listed as obsolete and is replaced by the 140MT-C3E-C16 newer generation motor protection circuit breaker
- Direct interchange with earlier 140M-C2E-C16 Series B units
- Compatible with original system wiring and DIN rail mounting for legacy control panels
Works With
- Manual Motor Controller (MMC) configuration per UL 508
- Manual Self-Protected (Type E) Combination Motor Controller design
- Three-phase AC power systems at 480V, 575V, and 600V ratings
- Industrial electrical distribution and motor control standards (NEC/CEC)
- Routine maintenance and troubleshooting via visible trip-test button
