ALLEN-BRADLEY 140MP-A3E-B40 Motor Circuit Breaker 690V 31382

( Brand: Allen-bradley ), ( Type: Circuit Breaker ), ( Maximum Load: 3 Hp ), ( Manufacturer Part Number: 140MP-A3E-B40 ), ( Input Voltage: 600 V ), ( Country Of Origin: United States )

Review ALLEN BRADLEY Ser 690v Motor Protection Circuit Breaker

The Allen-Bradley 140MP-A3E-B40 is a 690V motor circuit breaker from Rockwell Automation's Power Protection range, designed to provide reliable protection for motor applications. This circuit breaker is part number 31382 and is suitable for use in industrial settings where heavy electrical loads are common.

The 140MP-A3E-B40 circuit breaker is rated for a continuous current of 1400 amperes and a short-time rating of 22,000 amperes. It is designed to trip quickly in the event of overcurrent conditions to prevent damage to the motor and other connected equipment. The circuit breaker features a low-profile design, making it ideal for use in confined spaces.

The breaker is constructed with a rugged cast copper buss and a copper-bonded insulation system, ensuring long-lasting performance and reliability. It also features a neon indicator that clearly shows the status of the circuit breaker, whether it is in the on or off position.

The Allen-Bradley 140MP-A3E-B40 circuit breaker is equipped with a ground fault detection feature, which helps to prevent costly motor damages caused by ground faults. The breaker also includes a ground fault relay that can be used to monitor the ground fault current and provide an alarm when a fault is detected.

The circuit breaker is designed to be easy to install and maintain. It features a quick-disconnect mechanism that makes it simple to remove the circuit breaker from the panel for maintenance or replacement. The breaker also includes a test button that can be used to perform routine tests to ensure the circuit breaker is functioning properly.

The Allen-Bradley 140MP-A3E-B40 motor circuit breaker is compatible with a wide range of control systems and can be used in a variety of applications, including pumps, compressors, fans, and conveyors. It is designed to meet the demands of harsh industrial environments and is built to provide years of reliable service.

The Allen-Bradley 140MP-A3E-B40 motor circuit breaker (part number 31382) is a protective device designed to provide short-circuit protection for 690V AC motors. This breaker is suitable for various applications where motor overload or short-circuit protection is essential. In this response, we will discuss the pros and cons of buying this motor circuit breaker to help you make an informed decision.

1. High Breaking Capacity: The Allen-Bradley 140MP-A3E-B40 motor circuit breaker offers a high breaking capacity of 1400 amperes, making it suitable for large motors and heavy industrial applications.

2. Short-Circuit Protection: The primary function of this breaker is to protect motors from short circuits, which can cause extensive damage and potentially dangerous situations.

3. Overload Protection: In addition to short-circuit protection, this breaker also provides overload protection, which can prevent the motor from overheating and potentially failing due to excessive current.

4. Easy Installation: The Allen-Bradley 140MP-A3E-B40 motor circuit breaker is designed with a plug-in mounting frame, making it easy to install and replace.

5. Reliable: Allen-Bradley is a trusted brand in the industrial automation industry, known for producing high-quality and reliable products.

1. Cost: The Allen-Bradley 140MP-A3E-B40 motor circuit breaker is a premium product and can be more expensive than other options in the market.

2. Size: Due to its high breaking capacity, this breaker is larger and heavier than some other options, which may require additional space and support during installation.

3. Complexity: Compared to simpler circuit breakers, this motor circuit breaker comes with additional features and complexities, which may require more expertise to install and maintain.

The Allen-Bradley 140MP-A3E-B40 motor circuit breaker (part number 31382) offers several advantages, including high breaking capacity, short-circuit and overload protection, easy installation, and reliability. However, it also comes with some disadvantages, such as cost, size, and complexity. Ultimately, the decision to purchase this motor circuit breaker depends on your specific application requirements, budget, and expertise. If you need a high-performance, reliable solution for large motors or heavy industrial applications, the Allen-Bradley 140MP-A3E-B40 motor circuit breaker is a solid choice. However, if you have limited budget or installation space, you may want to consider alternative options with lower breaking capacities and simpler designs.

To make an informed decision, it's essential to evaluate your specific application requirements, including the motor size, current capacity, and protective functions needed. You should also consider your budget, installation space, and expertise level. Based on this evaluation, you can compare different motor circuit breakers, including the Allen-Bradley 140MP-A3E-B40, to determine which one best fits your needs. It's always a good idea to consult with a qualified electrical engineer or motor protection specialist for advice and guidance.

Details:

Lake Zurich, IL. Allen-Bradley 140MP-A3E-B40 Ser A 690V 2.5-4.0A Motor Protection Circuit Breaker. Items are cleaned per manufacturer guidelines.

part #: 140mpa3eb40 prices

• $49.89-$179.89

specifications acdrivestream:

• brand: Allen-bradley
• type: Circuit Breaker
• maximum load: 3 Hp
• manufacturer part number: 140MP-A3E-B40
• input voltage: 600 V
• country of origin: United States

shipping acdrivestream:

• service: UPS Ground, USPS Priority Mail, UPS Next Day Air, UPS 2nd Day Air
• carrier: UPS, USPS
• cost: $11.24
• type: Calculated
• transit: 2-5 Days
• class: Standard, Expedited, One-day

payments acdrivestream:

• wallet: Apple-pay
• credit card: Discover
• other

general acdrivestream:

• condition: Used
• Drives Starters > Drives Motor Controls > General Purpose AC Drives

seller acdrivestream:

• rating: 99.8%
• city: Lake Zurich, Illinois
• # reviews: 9079

offer acdrivestream:

• sold: 0
• options: Ship-to-home
• started: November 12, 2025
• availability: In Stock
• quantity: 2
• best offers: True

returns acdrivestream:

• time: 30 Days
• paid by: Buyer
• method: Money back
• policy: Returns Accepted

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