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Allen-Bradley 140M-F8E-C20


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All Parts Come with 12 Month Warranty

New, Surplus, and Refurbished Available

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Warranty Information

All products (new, surplus, and refurbished) are covered by Chief Automation's 1 Year Warranty. The Manufacturer's Warranty does NOT apply.

Shipping Information

We offer free standard shipping. Products located in the U.S. are eligible for expedited shipping, including next day air.

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We only accept online payments such as Visa, Mastercard, American Express, Discover, etc. All payments are fully secured.

Product Specifications

brand name Allen-Bradley

The Allen-Bradley 140M-F8E-C20 is a Motor Protection Circuit Breaker (MPCB) designed to protect motors from electrical faults and ensure safe operation. It is part of the 140M-C, D, and F frame series, which includes various models with different specifications and features.

Technical Specifications

The 140M-F8E-C20 has a frame size of F, which indicates its physical dimensions. It is designed to handle high currents and has a rated short-circuit breaking capacity of 100 kA at 400 V AC. This model also features an integrated auxiliary switch, which can be used for monitoring or controlling other devices in the system.

Alarm/Error Codes

The 140M-F8E-C20 does not have a specific list of alarm or error codes provided in the available documentation. However, it is typical for motor protection circuit breakers to have a set of alarm and error codes that indicate various conditions such as overcurrent, overvoltage, or under-voltage conditions. These codes are usually specific to the device and may be found in the user manual or technical documentation provided by the manufacturer.

User Manual

The user manual for the 140M-F8E-C20 is not directly available from our research. However, it is likely that the manual can be obtained from the manufacturer or a supplier, and it would provide detailed information on the device's operation, installation, and troubleshooting procedures.


Troubleshooting procedures for the 140M-F8E-C20 would typically involve checking for signs of electrical faults, such as overheating, burning smells, or unusual sounds. The user manual would likely provide specific guidelines for troubleshooting and resolving common issues. Additionally, the device's integrated auxiliary switch can be used to monitor the motor's status and detect potential problems before they become major issues.


The 140M-F8E-C20 is a motor protection circuit breaker and does not require programming. It operates based on its pre-set parameters and settings, which are determined by the manufacturer and the specific application in which it is used.


The installation of the 140M-F8E-C20 typically involves mounting it in an electrical enclosure, connecting it to the motor circuit, and ensuring proper wiring and grounding. The user manual would provide detailed instructions for installation, and it is recommended to follow these guidelines to ensure safe and proper operation of the device.

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