- 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-K6L3-D40
The Allen-Bradley 140U-K6L3-D40 Circuit Breaker is a 140G Molded Case Circuit Breaker (MCCB). It is a K-Frame circuit breaker with a rated current of 400 Amps and a 3-poles configuration. It provides
Call
140U-K6X3
This molded case circuit breaker operates at a maximum rated voltage of 690 VAC. It employs a thermal-magnetic protection type and a rotary mechanism for operation. The device is designed for fixed mo
In Stock Ships Today
140U-KTD3-D30
This circuit breaker supports various interruption ratings, including 35 kA at 480 Volts AC and 65 kA for both 480 Volts and 380 to 415 Volts AC. It has long-time and instantaneous trip functions and
In Stock Ships Today
140U-KTD3-D35
This molded case circuit breaker features a three-pole design within a K Frame configuration. It operates reliably in ambient temperatures up to 40°C and supports storage temperatures from -40°C to 80
Available
140U-KTD3-D40
This molded case circuit breaker from the 140U series has three poles and is built on a K Frame design. The fixed thermal trip mechanism is complemented by an adjustable magnetic trip, providing flexi
Call
140U-KTH3-D40
This circuit breaker features electronic protection with LSI characteristics for long, short, and high instant trip settings. The thermal trip can be adjusted between 200 and 400 Amps, while the magne
Call
140U-KTL3-D40
With a K frame size and three poles, this circuit breaker is engineered to handle significant electrical loads. The device operates optimally within a frequency range of 50 to 60 Hz. Interrupting rati
Call
140U-L-EOPD
This accessory operates at a control voltage range of 110 to 240 V AC/DC. It provides both auto and manual operation modes, allowing for local control via a pushbutton interface. The device includes h
Call
140U-L-FCX04
This operating mechanism is built for installation in environments rated Type 1/3/12/4/4X as per UL standards. Its operational range extends from a minimum temperature of -25°C to a maximum of 75°C, w
Call
140U-L-PAD4
This plug-in adapter facilitates a four-pole configuration and is UL approved for reliable performance in switchboards and power distribution systems. It features a black color finish and supports ver
In Stock Ships Today
Showing 191-200 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.