Allen Bradley
140U-I6C3-C70
The Allen Bradley 140U-I6C3-C70 Circuit Breaker is a UL listed circuit breaker with a fixed thermal and fixed magnetic trip unit. It has a 65 kA interrupting rating at 480 Volts AC and a continuous cu
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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 140U MCB
Browse available units in our catalog of 140U MCB.
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140U-JTD3-D22
The 140U-JTD3-D22 circuit breaker is a thermal-magnetic circuit breaker that has been designed and distributed by Allen Bradley. This breaker has a rated operational current of 225 Amps and different
From $472In Stock Ships Today - Allen Bradley
140U-H6C3-C60-A
The Allen Bradley 140U-H6C3-C60-A Circuit Breaker is a Miniature Circuit Breaker (MCB) or Molded Case Circuit Breaker (MCCB). It offers devices with 3 poles, a high interrupting rating with a rated cu
From $839In Stock Ships Tomorrow - Allen Bradley
140U-L3X3
This circuit breaker operates within a thermal magnetic current range of 15 to 800 A and has an electronic current range extending from 70 to 1200 A. It offers significant breaking capacities, includi
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140U-I6C3-D15-S
As a part of the 140U MCB series, this breaker operates within a magnetic tripping range of 800 to 1600 amperes. It is equipped with three poles and offers a horsepower rating of 25 to 30 HP at 230 VA
From $3,060In Stock Ships Today - Allen Bradley
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
From $1,364Available - Allen Bradley
140U-J2X3
This molded case circuit breaker operates under a J-Frame specification and is suitable for panel mounting. It can handle a rated operational voltage of up to 600 V AC, and it functions across a frequ
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140U-JTD3-D10
The 140U-JTD3-D10 circuit breaker is a molded case circuit breaker that has been designed and distributed by Allen Bradley/Rockwell Automation. The Allen Bradley/Rockwell Automation 140U-JTD3-D10 mold
From $703In Stock Ships Today - Allen Bradley
140U-H6C3-D11
The Allen Bradley 140U-H6C3-D11 Circuit Breaker is a 140G Molded Case Circuit Breaker which offers circuit protection and load protection. It has an H Frame size and a 3-pole configuration.
From $1,471Available - Allen Bradley
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
From $1,021Available
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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.