- 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
Free UPS Ground on All Orders!
+1 (919) 205-4392
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-J2X4
This breaker model features a four-pole configuration and operates with a rated insulation voltage of 1000 volts. It withstands impulse voltages of up to 8 kV. The 140G-J2X4 breaker has a mechanical l
Call
140G-J3C3-C25
This circuit breaker has a fixed thermal and fixed magnetic protection system. It effectively manages 25 A of rated current and 250 A of maximum current. It features a rated insulation voltage of 1000
Call
140G-J3C3-C30
This circuit breaker operates with 30 A of rated current and is rated for insulation voltages of up to 1000 volts. It provides fixed thermal and magnetic protection options, making it suitable for rel
Call
140G-J3C3-C32
This circuit breaker operates within a J frame and includes fixed thermal and fixed magnetic protection technology. It manages 32 A of rated current and 250 A of maximum current. It is rated for 1000V
Call
140G-J3C3-C35
This circuit breaker has a size J frame and is engineered for 35 Amps of rated current. It is rated for up to 1000 volts of insulation voltage and withstands impulse voltages of up to 8 kV. It is buil
Call
140G-J3C3-C40
The 140G-J3C3-C40 is a molded case circuit breaker with a maximum current rating of 250 Amps and an interrupting rating of 35 kA. Its rated current is 40 Amps and it operates at an insulation voltage
Call
140G-J3C3-C50
This circuit breaker has a current rating of 50 Amps, a maximum current of 250 Amps, and a rated insulation voltage of 1000 Volts. It also withstands impulse voltages reaching 8 kV. It guarantees effi
Available
140G-J3C3-C60
This circuit breaker has a J frame design. It supports a rated current of 60 A and has a 35 kA interrupting capacity. Its rated insulation voltage is 1000 V, and it can withstand impulse voltages of u
In Stock Ships Today
140G-J3C3-C63
This circuit breaker accommodates a rated current of 63 A and a maximum current of 250 A. It has an interrupting capacity of 35 kA. Its rated insulation voltage is 1000V, and it can endure impulse vol
Call
140G-J3C3-C70
This breaker model features a J-frame construction and fixed thermal and magnetic protection mechanisms. Its rated current is 70 A, and it operates efficiently at a rated insulation voltage of 1000 V.
Available
Showing 701-710 of
1,219
results
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.