- 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-J3C4-C25
This circuit breaker offers four poles and is designed with fixed thermal and magnetic protection technology. It supports a rated current of 25 Amps and has a rated insulation voltage of 1000V. The br
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140G-J3C4-C30
As part of the 140G series, this circuit breaker employs four poles and has a fixed thermal and magnetic protection system. The 140G-J3C4-C30 breaker has a maximum interrupting rating of 35 kA. It fea
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140G-J3C4-C32
This circuit breaker has a J frame and supports four poles. The device operates with 32 Amps of rated current and has a rated insulation voltage of 1000 volts. With an impulse withstand capacity of 8
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140G-J3C4-C35
This circuit breaker features four poles and operates with a rated current of 35 Amps and 250 Amps of maximum current. It employs fixed thermal and magnetic protection mechanisms. The breaker's insula
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140G-J3C4-C40
This circuit breaker has a J-frame and operates with four poles. It supports a rated current of 40 A and a maximum current of 250 A and is rated for up to 1000 V of insulation voltage. Furthermore, it
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140G-J3C4-C50
This circuit breaker features a J frame and incorporates fixed thermal and magnetic protection mechanisms. It supports a rated current of 50 A and 250 A of maximum current. It has a rated insulation v
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140G-J3C4-C60
This breaker model includes four poles and supports a rated current of 60 Amps in addition to 250 Amps of maximum current. It also supports 1000V of rated insulation voltage and 8 kV of impulse withst
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140G-J3C4-C63
This four-pole circuit breaker operates with 63 A of rated current and 250 A of maximum current, offering reliable performance. It's rated for an insulation voltage of up to 1000 volts and can withsta
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140G-J3C4-C70
This circuit breaker is designed with fixed thermal and magnetic protection mechanisms. It operates with 70 A of rated current and 250 A of maximum current and is rated for an interrupting capacity of
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140G-J3F3-C80
This breaker utilizes adjustable thermal and magnetic protection technology and can handle 80 A of rated current and 250 A of maximum current. It supports a maximum rated insulation voltage of 1000 vo
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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.