- Bad communication ports
- Broken selector/key switches
- Dead batteries/Bad Battery connections
- Solid or Blinking RED OK Status Light
- Solid or Blinking RED RUN Status Light
- Solid or Blinking RED Fault Status Light
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Allen Bradley 140U MCB Repair
We offer extensive repairs for your 140U MCB. We keep many spare parts in stock so that we can repair your 140U MCB as efficiently and effectively as possible. Our standard repair lead time is 2-4 weeks. However, we can often repair your unit much faster if necessary. We can repair most issues with your 140U MCB and if for some reason we cannot repair your unit we will do our best to offer a refurbished unit at the repair cost, so that you can get a working unit back as soon as possible!
- 2 Year DO Supply Warranty
- Fast repairs at low costs
- No surprises or up-charges for difficult repairs
- Standard lead time of 2-4 weeks
- Extensive quality control and testing
Get a repair quote
Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's
warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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Hardware issues & error codes we repair
We repair all of the following hardware issues and error codes with your 140U MCB parts.
- Bad analog inputs or ouptus
- Bad digital input or outputs
- Bad relays (stuck on/off)
- Incorrect voltages on inputs or outputs
- Incorrect current on inputs or outputs
- DF1, DH-485, DH+, Profibus, Remote I/ (RIO) failures and more!
- Intermittent communication
- Solid RED/Blinkging RED communication lights
- Devicenet, Ethernet, ControlNet, RS232 ports.
- Missing CJC Jumpers
- Incorrect readings
- Failed inputs
- Dead power supplies
- Incorrect voltage
- Broken Plastic
- Poor Connections
- Bad Slots
Browse 140U MCB Repairs
Browse our catalog of repairable 140U MCB parts to get a quote.
140U-L0D3-D40
This circuit breaker features three poles and provides fixed thermal and adjustable magnetic protection types. It operates effectively between temperatures of -25°C and 60°C and can be stored at tempe
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140U-L3D3-D25
This circuit breaker is an L-Frame model configured with three poles. It provides thermal-magnetic protection, utilizing a fixed thermal trip element alongside an adjustable magnetic trip. The unit su
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140U-L3D3-D40
This model consists of 3 poles and operates on a 3-phase system. It features thermal protection and functions under LI mode, which provides both long-time and instantaneous protection. This breaker co
Available
140U-L3D3-D60
The device supports three poles and has a minimum interrupting rating of 30 kA, ideally maxing out at 39 kA. Its operational temperature range spans from -25°C to 60°C, while it can be stored in envir
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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-L6D3-D60
This 3-pole molded case circuit breaker features an L Frame size and fixed thermal along with adjustable magnetic trip capabilities. It maintains high performance with an interrupt rating of 65 kA at
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140U-L6G3-D60
The Allen-Bradley 140U-L6G3-D60 Molded Case Circuit Breaker comes with a Size L frame, 3 poles, and 600 Amps of frame current rating. It has 690/600 Volts AC of rated operational voltage, 600 Amps of
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140U-L6X3
This 3-pole circuit breaker features an interrupting rating of 65 kiloamperes and operates effectively within a frequency range of 50 to 60 Hertz. It has a maximum amperage of 600 Amperes and belongs
Available
140U-LTD3-D30
This molded case circuit breaker supports 3 poles and offers a thermal trip rating set at 300 A. The magnetic trip range is adjustable between 1500 to 3000 A. Designed to operate effectively in enviro
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140U-LTD3-D40
This circuit breaker has three poles and provides robust protection with a breaking capacity of 35 kA at 480V. It can operate within a frequency range of 50 Hz to 60 Hz. The 140U-LTD3-D40 is built to
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About 140U MCB
The 140U MCB circuit breaker series is a molded case circuit breaker series manufactured by Allen-Bradley. Circuit breakers are electrical devices that are capable of carrying and breaking currents under normal and abnormal circuit conditions. The series is certified with the CE rating and the cULus listing. The breakers in this series meet the CSA, IEC, and the UL compliances. The 140U series is a series of compact circuit breakers which use less panel space and have more features. The circuit breakers in this series are 45 millimeters wide,102 millimeters high, and 85 millimeters deep. They offer higher interruption ratings of 65 kA at 480 Y/277 Volts. They allow for higher overall short circuit ratings. The 140U MCB series provides up to 6 times the high interrupt rating that traditional circuit breakers deliver. This series comes with current limiting features. It offers high interrupt ratings for both 2-pole and 3-pole setups. The circuit breaker is 100% rated for up to 15 Amps of current. These circuit breakers are ideal for feeder circuits which include small cabinets, distribution panels, branch circuit protection, transformers, and heaters. They are also used in control circuits like control transformers and power supplies.
The 140U MCB series is also HACR certified (Heating, Air Conditioning, and Refrigeration). These circuit breakers can be used for global applications. The 140U MCB series is a cost-effective circuit breaker series. These breakers use compact bus bars and feeder blocks which helps to reduce the wiring errors and the installation costs. The circuit breakers can be selected on the basis of the rated current, magnetic trip, breaking capacity, interrupting rating, and the number of poles. These breaker devices can be operated at temperatures between -25 and 60 degrees Celsius. The breakers can also take accessories manufactured by Allen-Bradley.