140-CMN-4000 | Allen-Bradley Motor Protection Circuit Breaker, 25.0 - 40.0A
140-CMN-4000 | Allen-Bradley Motor Protection Circuit Breaker, 25.0 - 40.0A
140-CMN-4000 | Allen-Bradley Motor Protection Circuit Breaker, 25.0 - 40.0A
140-CMN-4000 | Allen-Bradley Motor Protection Circuit Breaker, 25.0 - 40.0A
140-CMN-4000 | Allen-Bradley Motor Protection Circuit Breaker, 25.0 - 40.0A
140-CMN-4000 | Allen-Bradley Motor Protection Circuit Breaker, 25.0 - 40.0A
    140-CMN-4000 | Allen-Bradley Motor Protection Circuit Breaker, 25.0 - 40.0A
    140-CMN-4000 | Allen-Bradley Motor Protection Circuit Breaker, 25.0 - 40.0A
140-CMN-4000 | Allen-Bradley Motor Protection Circuit Breaker, 25.0 - 40.0A
140-CMN-4000 | Allen-Bradley Motor Protection Circuit Breaker, 25.0 - 40.0A

140-CMN-4000 | Allen-Bradley Motor Protection Circuit Breaker, 25.0 - 40.0A

Part #: 140-CMN-4000 Manufactured by: Allen-Bradley
Regular price
$615.00
Sale price
$615.00
Regular price
4 in Stock
Condition: New-Surplus Original Box
Shipping calculated at checkout.
Product Overview
The Allen-Bradley 140-CMN-4000 is a Motor Protection Circuit Breaker designed for a current range of 25.0 - 40.0A, and it ...  Read more
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Product Description P/N: 140-CMN-4000

Description / Specifications

Description 

The 140-CMN-4000 motor protection circuit breaker has is part of the Bulletin 140-CMN product line by Allen-Bradley. The circuit breaker has a current rating of 16 to 90 Amps and a rated operational current of 40 Amps. The magnetic release current rating of the circuit breaker is 560 Amps and it has a supply voltage of 480 Volts AC (at 60 Hertz).

 

Technical Specifications 

 

Brand Allen-Bradley
Series 140M Circuit Breakers
Part Number 140-CMN-4000
Current rating 16 to 90 Amps
Maximum current 90 Amps
Rated operational current 40 Amps
Magnetic release current 560 Amps
Rated service short circuit breaking capacity 8 kilo Amps
Rated insulation voltage 690/600 Volts
Trip Class 10
Standards CSA 22.2 (No. 14), UL 508, IEC60947-1/2, CE
Operating temperature 25 to 80 degrees Celsius (-13 to 140 degrees Fahrenheit)
Storage temperature -25 to 80 degrees Celsius (-13 to 176 degrees Fahrenheit)
Protection class IP2X
Lifespan 30000 operations (mechanical), 5000 operations (electrical)

  

 

Information About 140-CMN-4000

The 140-CMN-4000 circuit breaker operates with standard 3-phase motors and back-up fuses. This motor protection circuit breaker is designed and manufactured by Allen-Bradley and it complies with standards such as the UL 508, EN60947-2, and CE standards. The Bulletin 140-CMN circuit breaker provides functions such as overload protection, switching, disconnect for motor branch circuit, and branch-circuit/short-circuit protection. The circuit breaker features phase-loss protection with a differential release and a magnetic release with a fixed setting. The 140-CMN-4000 circuit breaker has a maximum current rating of 90 Amps and it features a Class 10 trip rating. The circuit breaker is available with accessories such as an external rotary operator, trip indication contacts, and auxiliary contacts. The rated operational current of the circuit breaker is 40 Amps while the magnetic release current is 560 Amps.

The rated insulation voltage of the 140-CMN-4000 circuit breaker is 690 Volts/600 Volts. This circuit breaker has a rated service short circuit breaking capacity of 8 kiloAmps. The rated frequency is 40 to 60 Hertz. The ambient operating temperature of the unit is from -25 to 80 degrees Celsius (-13 to 140 degrees Fahrenheit) while the storage temperature is from -25 to 80 degrees Celsius (-13 to 176 degrees Fahrenheit). The average mechanical lifespan of the 140-CMN-4000 circuit breaker is 30,000 operations while the electrical lifespan is 5000 operations. The switching frequency is a maximum of 20 operations per hour. The 140-CMN-4000 circuit breaker has an IP2X protection class from the front when the terminal is wired and it features a shock resistance of 30 g for the duration of 11 milliseconds. The weight of the 140-CMN-4000 circuit breaker is 1.84 kilograms or 4 pounds.


Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Frequently Asked Questions about 140-CMN-4000
Question: What is the Allen-Bradley 140-CMN-4000 used for?
Date Update:26/05/2025
Answer:

The 140-CMN-4000 is a motor protection circuit breaker designed to protect 3-phase motors against overload, short circuits, and phase loss. It functions as a switch, disconnector, and branch circuit protector in motor control systems. This device is particularly useful in industrial environments requiring compact, reliable motor protection.

Question: What is the current rating range for the 140-CMN-4000?
Date Update:26/05/2025
Answer:

The circuit breaker supports an adjustable current rating from 16 to 90 Amps, making it versatile for motors of different sizes. Its rated operational current is 40 Amps, suitable for most standard motor applications. Additionally, its magnetic trip setting is fixed at 560 Amps, offering robust short-circuit protection.

Question: Does the 140-CMN-4000 support phase-loss protection?
Date Update:26/05/2025
Answer:

Yes, the breaker is equipped with phase-loss protection via differential release, ensuring that the motor is shut down in the event of loss of one of the three supply phases. This feature helps prevent motor damage caused by unbalanced operation. It improves safety and extends motor lifespan.

Question: How long does the 140-CMN-4000 last and under what conditions?
Date Update:26/05/2025
Answer:

Mechanically, the breaker is rated for 30,000 operations, and 5,000 operations electrically under full load. It operates in ambient temperatures from -25°C to +80°C and offers an IP2X protection rating from the front when properly wired. Its rugged design and shock resistance (30 g) make it reliable in demanding industrial settings.

Question: Is the 140-CMN-4000 still available or supported, and what is the recommended replacement?
Date Update:26/05/2025
Answer:

No, the Allen-Bradley 140-CMN-4000 has been discontinued and is no longer available or supported by Rockwell Automation. Its discontinuation became effective on December 31, 2015, marking the end of the Bulletin 140-CMN series. The recommended replacement for this product is the 140MG Motor Protection Circuit Breaker (MPCB) series, which offers enhanced performance, improved adjustability, and broader compatibility with modern motor control systems.

IQElectro is not an authorized distributor.
QElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The 140-CMN-4000 motor protection circuit breaker has is part of the Bulletin 140-CMN product line by Allen-Bradley. The circuit breaker has a current rating of 16 to 90 Amps and a rated operational current of 40 Amps. The magnetic release current rating of the circuit breaker is 560 Amps and it has a supply voltage of 480 Volts AC (at 60 Hertz).

 

Technical Specifications 

 

Brand Allen-Bradley
Series 140M Circuit Breakers
Part Number 140-CMN-4000
Current rating 16 to 90 Amps
Maximum current 90 Amps
Rated operational current 40 Amps
Magnetic release current 560 Amps
Rated service short circuit breaking capacity 8 kilo Amps
Rated insulation voltage 690/600 Volts
Trip Class 10
Standards CSA 22.2 (No. 14), UL 508, IEC60947-1/2, CE
Operating temperature 25 to 80 degrees Celsius (-13 to 140 degrees Fahrenheit)
Storage temperature -25 to 80 degrees Celsius (-13 to 176 degrees Fahrenheit)
Protection class IP2X
Lifespan 30000 operations (mechanical), 5000 operations (electrical)

  

 

Information About 140-CMN-4000

The 140-CMN-4000 circuit breaker operates with standard 3-phase motors and back-up fuses. This motor protection circuit breaker is designed and manufactured by Allen-Bradley and it complies with standards such as the UL 508, EN60947-2, and CE standards. The Bulletin 140-CMN circuit breaker provides functions such as overload protection, switching, disconnect for motor branch circuit, and branch-circuit/short-circuit protection. The circuit breaker features phase-loss protection with a differential release and a magnetic release with a fixed setting. The 140-CMN-4000 circuit breaker has a maximum current rating of 90 Amps and it features a Class 10 trip rating. The circuit breaker is available with accessories such as an external rotary operator, trip indication contacts, and auxiliary contacts. The rated operational current of the circuit breaker is 40 Amps while the magnetic release current is 560 Amps.

The rated insulation voltage of the 140-CMN-4000 circuit breaker is 690 Volts/600 Volts. This circuit breaker has a rated service short circuit breaking capacity of 8 kiloAmps. The rated frequency is 40 to 60 Hertz. The ambient operating temperature of the unit is from -25 to 80 degrees Celsius (-13 to 140 degrees Fahrenheit) while the storage temperature is from -25 to 80 degrees Celsius (-13 to 176 degrees Fahrenheit). The average mechanical lifespan of the 140-CMN-4000 circuit breaker is 30,000 operations while the electrical lifespan is 5000 operations. The switching frequency is a maximum of 20 operations per hour. The 140-CMN-4000 circuit breaker has an IP2X protection class from the front when the terminal is wired and it features a shock resistance of 30 g for the duration of 11 milliseconds. The weight of the 140-CMN-4000 circuit breaker is 1.84 kilograms or 4 pounds.


Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

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Orlando Fuquen

140M-C2E-B63 | Allen-Bradley Motor Protection Circuit Breaker, 4.0-6.3 A, Frame C

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María Margarita García G.
prices and lead time, and service so good!

prices and lead time, and service so good!

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IQElectro has fulfilled its commitments perfectly, scoring a full 10 out of 10, quickly and with high quality