- 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.
Learn more
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-NS0K4-E12
This molded case circuit breaker operates at a frame classification of NS. The device features four poles and delivers a rated insulation voltage of 1000 volts. It also withstands impulse voltages up
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140G-NS5H3-E12
This breaker is designed with an NS frame and offers a current range of 1200 A. It has a rated insulation voltage of 1000 volts. The impulse withstand voltage is rated at 8 kV, making it suitable for
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140G-NS5H4-E12
This model operates within a current range of 1200 A and is equipped with four poles. It is rated for insulation voltage of 1000V and can handle impulse withstand voltages up to 8 kV. The device weigh
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140G-NS5I3-E12
With an NS frame, this circuit breaker operates effectively within a current range of 1200 A. It is rated for an insulation voltage of 1000 V and can withstand impulse voltages of up to 8 kV. The devi
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140G-NS5I4-E12
This model incorporates four poles and utilizes electronic LSIG protection. It is rated for a maximum insulation voltage of 1000 volts and can withstand impulse voltages up to 8 kV. Weighing 27.56 pou
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140G-NS5K3-E12
This molded case circuit breaker operates with a current rating of 1200 A and has an NS frame size. It is designed to handle a rated insulation voltage of 1000 volts and withstands impulse voltages of
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140G-NS5K4-E12
This device features an NS frame size built to accommodate four poles. It operates effectively within a current range of 1200 A. The rated insulation voltage is 1000 volts, and it can withstand impuls
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140G-NS6H3-E12
Operating with a frame type of NS, the 140G-NS6H3-E12 breaker effectively supports a current range of up to 1200 A. It is rated for insulation voltages of 1000 volts and withstands impulse voltages of
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140G-NS6H4-E12
This circuit breaker features four poles and operates within a current range of 1200 A. It is designed to handle a rated insulation voltage of 1000 volts and offers an impulse withstand rating of up t
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140G-NS6I4-E12
The 140G-NS6I4-E12 is equipped with four poles and operates within a current range of 1200 A. It maintains a rated insulation voltage of 1000 volts and can withstand impulse voltages of up to 8 kV. Th
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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.