Allen Bradley
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
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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.
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140U-D6D2-B50
This model is rated for a maximum current of 30 Amperes and a continuous rated current of 5 Amperes. It provides an interrupt rating of 100 kiloamperes and supports a supply voltage of 480 Volts AC. M
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140U-I3C3-C80
The 140U-I3C3-C80 circuit breaker is a Frame I molded-case circuit breaker that has been designed and developed by Allen Bradley/Rockwell Automation. This breaker comes with a fixed-thermal and fixed-
From $342In Stock Ships Today - Allen Bradley
140U-J0D3-D22
This circuit breaker is equipped with a thermal magnetic trip mechanism to safeguard against overloads. Its breaking capacity stands at 14 kA, making it capable of handling significant fault currents.
From $3,099In Stock Ships Today - Allen Bradley
140U-J6G3-D25
This circuit breaker features a J frame size rated at 250 A and operates with three poles. Its interruption capabilities align with IEC standards across multiple voltage ranges, supporting up to 100 k
From $3,176In Stock Ships Today - Allen Bradley
140U-JTD3-D20
The 140U-JTD3-D20 circuit breaker is a molded-case circuit breaker that has been designed to provide protection to different equipment such as induction motors and branch circuits, and it provides ele
From $381In Stock Ships Today - Allen Bradley
140U-JD6D3-D15
The Allen Bradley 140U-JD6D3-D15 circuit breaker features a thermal-magnetic/adjustable magnetic trip and magnetic trip range of 750 to 1500 Amps. The continuous current rating of the circuit breaker
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140UE-L5X3
This model features three poles and utilizes a thermal-magnetic trip unit type for reliable operation. It supports a frequency range from 50 Hz to 60 Hz. The device is engineered to function effective
From $651In Stock Ships Today - Allen Bradley
140U-JTD3-D17
The 140U-JTD3-D17 circuit breaker is an adjustable magnetic and fixed thermal circuit breaker that employs two different detection mechanisms that employ temperature sensors and magnets to detect diff
From $308In Stock Ships Today - Allen Bradley
140U-K6D3-D25
The Allen Bradley 140U-K6D3-D25 Circuit Breaker is a 140G Molded Case Circuit Breaker (MCCB). It is a K-Frame circuit breaker with a rated current of 250 Amps.
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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.