- 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
Free UPS Ground on All Orders!
+1 (919) 205-4392
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.
Learn more
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-J6D3-D20-A-MU
This circuit breaker consists of three poles and employs a thermal-magnetic trip unit. The unit features a fixed thermal trip alongside an adjustable magnetic trip. Installation can be completed using
Call
140U-J6D3-D22
Designed to accommodate a frame rating of 250 amperes, this circuit breaker supports a rated operational current of 225 A. It maintains a breaking capacity of 70 kA at 400 volts and 65 kA at 480 volts
Call
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
In Stock Ships Today
140U-J6L3-C50
This circuit breaker falls under the J-Frame size category and is capable of handling breaking capacities of up to 70 kA at 400/415V AC. It provides breaking capacities of 65 kA at 480V AC, 25 kA at 6
Call
140U-JD0D3-D15
The 140U-JD0D3-D15 circuit breaker supports both AC and DC applications with voltage ratings of 600 V AC and 500 V DC, respectively. It features a substantial interrupting capacity of 100 kA at 480 VA
Call
140U-JD0D3-D17
This circuit breaker features a 3-pole configuration and a current rating of 250 A. Its interrupting capacities are rated at 200 kA for 240 VAC, 100 kA for 480 VAC, 35 kA for 600 VAC, and 22 kA for 25
Call
140U-JD0D3-D20
This circuit breaker operates within a frequency range of 50 to 60 Hz and uses a thermal magnetic trip unit. The protection system includes fixed thermal and adjustable magnetic features, ensuring rel
Call
140U-JD0D3-D22
This three-pole circuit breaker is designed for operation at voltages up to 480 V and offers a breaking capacity of 100 kA. It operates efficiently within a temperature range of -20°C to 60°C. Further
Call
140U-JD3D3-D10
This circuit breaker features three poles and has a breaking capacity of 35 kA. It operates effectively at frequencies ranging from 50 to 60 Hz and can withstand operational temperatures between -25°C
Call
140U-JD3D3-D12
This circuit breaker operates with three poles and can handle frequencies from 50 Hz to 60 Hz. It is suitable for environments with operating temperatures ranging from -25°C to 60°C and can be stored
Call
Showing 131-140 of
254
results
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.