- 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 140G MCB Repair
We offer extensive repairs for your 140G MCB. We keep many spare parts in stock so that we can repair your 140G 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 140G 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 140G 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 140G MCB Repairs
Browse our catalog of repairable 140G MCB parts to get a quote.
140G-KTH3-D40
The 140G-KTH3-D40 Molded Case Circuit Breaker has a Electronic LSI Protection Type and a 7.17 lb Weight.
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140G-KTH4-D30
This circuit breaker is rated for a current range of 300 Amps. It operates at an insulation voltage of 1000 volts and can withstand impulse voltages of 8 kV. Built with a K frame, it weighs 9.15 pound
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140G-KTH4-D40
This four-pole circuit breaker is rated for a maximum current of 400 A and operates at a rated insulation voltage of 1000 V. It withstands impulse voltages of up to 8 kV and weighs 9.15 pounds. It has
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140G-KTI3-D30
This circuit breaker operates within a current range of 300 Amps and is housed in a K frame type. It accommodates a rated insulation voltage of 1000V and can withstand impulse voltages of 8 kV. The un
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140G-KTI3-D40
This circuit breaker operates within a current range of 400 A. It boasts a rated impulse withstand voltage of 8 kV, ensuring resilience against voltage spikes. The unit weighs 7.17 pounds and is desig
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140G-KTI4-D30
This four-pole circuit breaker handles a rated insulation voltage of 1000V and can withstand impulse voltages up to 8 kV. The 140G-KTI4-D30 weighs 9.15 pounds. It ensures efficient operation with a me
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140G-KTI4-D40
This circuit breaker operates with an interrupting rating controlled via a trip unit and supports a current range of 400 A. Its rated insulation voltage stands at 1000 volts, and it can withstand impu
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140G-KTK3-D30
This circuit breaker maintains a rated current of 300 A and is designed for a rated insulation voltage of 1000 volts. It can withstand impulse voltages of up to 8 kV. The device weighs 7.17 pounds, co
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140G-KTK3-D40
This circuit breaker operates with a type K frame and features a rated current of 400 A. The rated impulse withstand voltage is 8 kV, which provides additional safety during transient conditions. The
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140G-KTK4-D30
This breaker unit features electronic LSIG and MM protection and has four poles. It operates effectively with a rated current of 300 Amps. The unit boasts a rated insulation voltage of 1000 volts and
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About 140G MCB
The Allen-Bradley 140G MCB series is a series of molded case circuit breakers whose usable value can be linked to absolutely all branches of industry, and they can also be implemented in buildings and homes. The 140G circuit breakers are 3-pole or 4-pole protective devices that are available with continuous current ratings between 125 and 3000 Amps. Their maximum operating voltage is 690 Volts AC. For standard electrical installations, customers usually buy circuit breakers with fixed thermal and magnetic protection options, but 140G units are also available with the adjustable thermal/fixed magnetic combination protection feature as well as with the molded case switch (isolator) options. The 140G circuit breaker housing is made of a special plastic that is a good insulator and that is not susceptible to wear and tear due to exposure to high temperatures. The mechanical construction is designed to prevent the jamming of moving parts, thus giving the devices a high level of safety in operation. The lifespan of these molded case circuit breakers is estimated to be over 25,000 mechanical operations.
The Allen-Bradley 140G molded case circuit breakers respond with lightning speed to the appearance of short-circuits, and the force separating the contacts inside of these units is proportional to the current flowing through them, so the speed of contact separation increases with the increase of the short-circuit current to which the device needs to respond. Internal options that can be factory installed on the 140G series circuit breakers are shunt trip, undervoltage release, alarm contacts, and auxiliary contacts. All the products from this series can be reverse-fed, which simplifies the installations in some applications. Allen-Bradley has certified that the 140G series circuit breakers with all their accessories meet the CE, UL, CSA, IEC, and the CCC standards.