- 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-JTF4-D11
The 140G-JTF4-D11 is engineered to manage a current range of 110 A. Accommodating up to 1000 V for rated insulation, it has an impulse withstand voltage capability of 8 kV. Designed for durability, it
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140G-JTF4-D12
This J-frame circuit breaker accommodates a maximum current range of 120 A and is equipped with an interrupting rating designated for the trip unit. Its rated insulation voltage is 1000 volts, allowin
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140G-JTF4-D15
This circuit breaker features a J frame and is equipped with four poles. It operates across a current range of 150 A. With a rated insulation voltage of 1000 V and an impulse withstand voltage of 8 kV
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140G-JTF4-D16
This circuit breaker maintains four poles and includes adjustable thermal and magnetic protection. It also supports a rated insulation voltage of 1000 volts and withstands impulse voltages of 8 kV. Th
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140G-JTF4-D17
This circuit breaker boasts four poles and offers a current range of 170 A. The frame type is categorized as J, with a rated insulation voltage of 1000 volts. It is designed to endure impulse voltages
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140G-JTF4-D20
Operating within a current range of 200 A, the 140G-JTF4-D20 is built within a J-frame for optimal performance. It maintains a rated insulation voltage of 1000 volts and can withstand impulse voltages
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140G-JTF4-D22
This circuit breaker utilizes a four-pole configuration and maintains a current range of 220 Amps. It has an insulation voltage rating of 1000 volts and can withstand impulse voltages of 8 kV. The uni
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140G-JTF4-D25
This molded case circuit breaker supports a current range of 250 A and includes a rated insulation voltage of 1000 V. The device is capable of withstanding impulse voltages up to 8 kV. Weighing 7.72 p
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140G-JTH3-C40
This circuit breaker utilizes a JC frame and has an interrupting rating associated with its trip unit. It supports a rated insulation voltage of 1000 volts and can withstand impulse voltages up to 8 k
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140G-JTH3-C60
This circuit breaker model, part of the Allen-Bradley 140G series, features a JC frame and can handle up to 250 Amps. It has an interrupting rating that operates via a trip unit, ensuring overcurrent
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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.