- 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-G3C4-C45
The 140G-G3C4-C45 model is a molded case circuit breaker featuring a G-frame design. It operates with an amperage capacity of 125 Amps and has an interrupting rating of 35 kA. Designed for 4-pole conf
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140G-G3C4-C50
The 140G-G3C4-C50 is a molded case circuit breaker featuring a G frame design, capable of handling a maximum current rating of 125 amps. It incorporates fixed thermal and magnetic protection mechanism
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140G-G3C4-C60
The 140G-G3C4-C60 is a molded case circuit breaker designed for reliable performance in various electrical systems. With a frame type designated as G, it operates at a maximum current of 125 Amps. Thi
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140G-G3C4-C63
The 140G-G3C4-C63 circuit breaker is designed for effective performance in demanding applications. With a rated insulation voltage of 800 V and an impulse withstand voltage of up to 8 kV, this device
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140G-G3C4-C70
The 140G-G3C4-C70 circuit breaker is characterized by its 4-pole design and fixed thermal and magnetic protection types. It effectively manages a maximum current range of 70 Amps, with a thermal trip
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140G-G3C4-C80
The molded case circuit breaker 140G-G3C4-C80 features a 4-pole configuration and supports current levels of up to 80 amps. This model boasts fixed thermal and magnetic protection, with a rated insula
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140G-G3C4-C90
This unit features four poles and incorporates fixed thermal and magnetic protection systems. The 140G-G3C4-C90 has a current range of 90 A, with a thermal trip setting at 90 A and a magnetic trip val
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140G-G3C4-D10
This circuit breaker operates with four poles and has a fixed thermal and magnetic trip system. It supports a current range of 100 amps and is built to handle an insulation voltage rating of 800 volts
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140G-G3C4-D11
As part of the 140G series, the 140G-G3C4-D11 delivers reliable circuit protection with a fixed thermal trip set at 110 amps and a magnetic trip capability of 1100 amps. This unit supports a maximum i
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140G-G3C4-D12
This molded case circuit breaker features four poles and is equipped with both fixed thermal and fixed magnetic protection mechanisms. It provides a significant interrupting capacity of 35 kA, with a
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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.