- 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-J3F4-D25
Operating with a maximum current of 250 A, this four-pole circuit breaker is equipped with adjustable thermal and magnetic protection. It is rated for insulation at 1000V and can withstand impulse vol
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140G-J3H3-C40
This device operates with a current range of 40 A and provides ratings for insulation voltage of 1000 V and impulse withstand voltage of 8 kV. It is equipped with a J-sized frame and weighs 5.51 pound
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140G-J3H3-C60
This circuit breaker operates within a current range of 60 A and is designed with an insulation voltage rating of up to 1000 V. It can handle impulse voltages of 8 kV and is housed in a J frame. Weigh
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140G-J3H3-D10
This model of circuit breaker provides an interrupting rating of 35 kA and supports a current range of up to 100 A. The rated insulation and impulse withstand voltages are 1000 V and 8 kV respectively
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140G-J3H3-D15
This molded case circuit breaker manages a current range of 150 A and maintains an insulation voltage rating of 1000 V. It can withstand impulse voltages up to 8 kV. Weighing 5.51 lbs, it is engineere
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140G-J3H3-D25
This circuit breaker is configured with a J-frame and supports a current range of 250 Amps. It is rated for an insulation voltage of 1000 volts and can withstand impulse voltages of 8 kV. The unit wei
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140G-J3H4-C40
This unit is designated as a 4-pole circuit breaker that operates within a current range of 40 Amps. Rated for insulation voltages up to 1000 V, it can also withstand impulse voltages of 8 kV. The pro
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140G-J3H4-C60
Designed with a J frame, the 140G-J3H4-C60 features an electronic LSI protection type. It operates within a current range of 60 Amps and supports a rated insulation voltage of 1000 volts. With an impu
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140G-J3H4-D10
This circuit breaker includes four poles and effectively manages currents up to 100 A. It boasts a rated insulation voltage of 1000 volts and withstands impulse voltages of 8 kV. The weight of the uni
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140G-J3H4-D15
Designed for reliable circuit protection, the 140G-J3H4-D15 operates at a maximum rated insulation voltage of 1000 volts and supports a current range up to 150 Amps. It includes an interrupting capaci
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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.