140U-H6C3-C20
The 140U-H6C3-C20 circuit breaker is certified with the UL, CSA, and CE standards. It is a 600 Volts AC rated unit.
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Allen Bradley 140U MCB
The Allen Bradley 140U MCB series is a series of current-limiting molded-case circuit breakers designed to meet a wide range of safety standards. The 140U circuit breakers are highly compact, and they can be customized with field-installed accessories. These accessories include load terminal covers and feeder terminals. The 140U circuit breakers are suitable for main circuit protection applications and branch circuit protection applications. The interrupting capacity of these breakers ranges from 18 to 100 kA.
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Browse available units in our catalog of 140U MCB.
140UE-H7E3-D12
This molded case circuit breaker features an open enclosure and uses stainless steel lugs for terminal connections. It can handle an apparent power of 70 kA, ensuring robust performance against short
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4.6
140U-J0D3-D15
This 3-pole circuit breaker is designed with a J frame and offers a minimum magnetic trip current of 800 A and a maximum of 1600 A. It operates effectively in temperatures ranging from -25°C to 60°C,
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4.9
140U-H2C3-C80
With three poles, this circuit breaker has a rated current of 80 amps and a thermal trip rating matching this value. Its magnetic trip rating is rated at 800 amps. The 140U-H2C3-C80 supports breaking
Available
4.7
140U-H6C3-C60
The Bulletin 140U molded case circuit breaker that is known as the 140U-H6C3-C60 circuit breaker features fixed thermal and fixed magnetic protection and three poles. This Allen-Bradley circuit breake
Available
5.0
140U-H6C3-D12
The 140U-H6C3-D12 circuit breaker is a fixed-thermal and fixed-magnetic circuit breaker that has been manufactured and designed by Allen-Bradley. This breaker has been designed to operate with a high
Available
4.9
140UE-LTF3-D63
Designed for use in various environments, this breaker operates with a rated insulation voltage of 750 V and withstands impulse voltages of 6 kV on its main conductors. It supports AC operational volt
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4.7
140U-H2C3-D12
With a magnetic trip current capability of 1250 A and a thermal trip current of 125 A, this breaker ensures robust protection in various applications. It provides reliable interrupting ratings of 35 k
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4.6
140U-D6D2-B60
This circuit breaker features a two-pole configuration and belongs to a D frame size. It has a magnetic trip setting between 15 to 20 times the rated current. Designed for high performance, it has a b
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5.0
140U-D6D3-B50
This circuit breaker is optimized for frequencies ranging from 50 Hz to 60 Hz. It has exceptional interrupting ratings, achieving 100 kA at 240 V and 50 kA at 600Y/347V. This breaker operates effectiv
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About 140U MCB
The 140U MCB series of molded case circuit breakers from Allen-Bradley/Rockwell Automation features circuit breakers that are listed for global applications. The 140U MCB circuit breakers, like other molded case circuit breakers, are used in a system to provide protection against overcurrents as well as short circuit protection. Note that a short circuit can reach a current of up to 100,000 Amps. To provide reliable protection, molded case circuit breakers have an arc chamber which surrounds the switching contacts. The chamber is made of splitter plates and chutes which help in drawing the arc away from the contacts during a short circuit. An arc is formed by opening the contacts. These breakers provide up to 6 times higher interrupting ratings than other miniature breakers. The Allen-Bradley 140U molded-case circuit breakers also include accessories such as load terminal covers, feeder terminals, eco connection modules, and extension shaft support.
The Allen-Bradley 140U MCB circuit breakers are current limiting circuit breakers that are listed by the Underwriters Laboratories. This series of breakers have a high interrupting capacity and they are suitable for backfeeding at a voltage rating of 240 Volts and 480Y/277V. The 140U MCB series has breakers with a current rating of between 0.5 Amps and 30 Amps. Also, these breakers are available in either 2 or 3 poles. The 140U MCB circuit breakers are 100% rated at up to 10 Amps. The 140U MCB series is compliant with standards such as the CSA C22.2, No.5, IEC/EN 60947-1, IEC/EN 60947-2, and UL 489. Under the UL and the CSA standards, this family of circuit breakers has a rated insulation voltage of 600 Volts. The 140U MCB series has mechanical and electrical lifespans of 100,000 and 10,000 operations, respectively. These circuit breakers have a rated operating ambient temperature of between -40 degrees Celsius and 80 degrees Celsius. One of the benefits of these breakers is that they come with a compact design that consists of a width of 45 millimeters, a height of 102 millimeters, and a depth of 85 millimeters, which help the breakers save panel space.