140MF8EC20

Overview of Allen Bradley 140M-F8E-C20

The Allen Bradley 140M-F8E-C20 is a motor protection circuit breaker engineered for precise and reliable motor protection in industrial environments. This device provides critical disconnect, short-circuit, overload protection, and manual switching capabilities tailored to motors operating within a 14.5 to 20 amp range. Its DIN rail mountable, compact design maximizes space utilization in control panels while reducing installation time. The F-frame model is rated for 600V AC and features a high magnetic trip to help manage severe fault conditions efficiently. Constructed to withstand harsh operating conditions, the 140M-F8E-C20 maintains performance consistency and enhances system safety. Allen Bradley's reputation for robust component design and consistent reliability makes this model a preferred choice for OEMs, facility maintenance teams, and system integrators requiring dependable motor circuit protection.

Key Features of Allen Bradley 140M-F8E-C20

• Motor protection circuit breaker, F-frame
• Current range: 14.5–20A
• High magnetic trip for severe fault response
• DIN rail mount for streamlined installation
• 3-pole configuration
• 600V AC rated operational voltage
• Manual ON/OFF motor control
• Compact footprint for panel efficiency
• IP20 enclosure rating
• Compatible with a range of motor sizes and applications

Technical Specs of 140M-F8E-C20

• Current adjustment range: 14.5–20A
• Breaking capacity: up to 65 kA (at 400V AC)
• Frame size: F
• Status: 3-pole
• Nominal voltage: 600V AC
• Mounting: DIN rail
• Dimensions (HxWxD): 111.4 x 54 x 110 mm
• Weight: ~0.78 kg
• Ambient temperature: 0°C to +40°C
• Storage temperature: -50°C to +80°C

Applications / Use Case

The Allen Bradley 140M-F8E-C20 is designed for use in motor starter panels, control cabinets, and machinery where reliable motor protection is essential. Industries such as manufacturing, process automation, HVAC, and material handling benefit from its comprehensive fault response and manual switch functionality. Integrators deploy the 140M-F8E-C20 for small-to-medium motor loads to secure motors against overloads and short circuits, minimizing downtime and equipment risk. Its ease of installation and compact size make it suitable for retrofits or new installations in facilities that prioritize both panel real estate and adherence to safety codes. The breaker is frequently used alongside contactors and automation components for coordinated protection and control in three-phase motor circuits.

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