140G-G3C3-C32
The part number 140G-G3C3-C32 belongs to the Allen-Bradley 140G MCB series, featuring a G-type frame. This molded case circuit breaker has a thermal trip rating of 32 Amps and a magnetic trip capabili
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Allen Bradley 140G MCB
The Allen Bradley 140G molded case circuit breakers are suitable for a wide range of applications in low-voltage 3-phase power systems. 140G series circuit breakers can be reverse-fed. They provide overcurrent protection to conductors and other equipment, and they can be used as the main disconnecting devices for control panels. The 140G circuit breakers can also be used for branch circuit protection or as feeder breakers.
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Browse 140G MCB
Browse available units in our catalog of 140G MCB.
140G-H0H3-D10
This molded case circuit breaker operates at a current range of 100 A and provides an insulation voltage rating of 1000 V. The electrical performance is enhanced with a rated impulse withstand voltage
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140G-H15C3-C30
The 140G-H15C3-C30 circuit breaker features fixed thermal and magnetic protection. This protective device operates within a current range of 30 A. It provides insulation protection rated at 1000 V and
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4.9
140G-H3C4-C25
This molded case circuit breaker features a four-pole configuration and supports a current range of 25 amps. It achieves a rated insulation voltage of 1000 volts while maintaining an impulse withstand
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4.6
140G-K0H3-D40
This molded-case circuit breaker has a maximum current rating of 400 A and an impressive insulation voltage rating of 1000 V. It can withstand impulse voltages of up to 8 kV. Weighing 7.17 lbs., it su
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140G-K3F4-D40
This circuit breaker has four poles and provides adjustable thermal and magnetic protection types. It operates within a current range of 400 A and maintains a rated insulation voltage of 1000 V. It ca
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140G-KTF4-D40
This breaker model has four poles and includes a current handling capability of up to 400 A. The rated insulation voltage reaches 1000 volts, providing ample safety for demanding tasks. Furthermore, i
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4.7
140G-NS0H3-E12
Suitable for 1200 A operations, the 140G-NS0H3-E12 maintains a rated insulation voltage of 1000 volts and can withstand impulse voltages of 8 kV. The device, weighing 27.56 pounds, incorporates electr
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140G-M5K4-D63
Designed for versatility, this breaker has an electronic LSIG protection mechanism and features four poles. It supports a current range up to 630 A and has a rated insulation voltage of 1000 volts. It
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140G-N5H3-E12
This circuit breaker employs an Electronic LSI protection mechanism, designed for high performance under demanding conditions. It manages a current rating of 1200 A and comes with an insulation voltag
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About 140G MCB
The Allen-Bradley/Rockwell Automation 140G MCB series is a series of molded case circuit breakers. According to the National Electrical Manufacturers Association (NEMA), a circuit breaker is a device designed to open and close a circuit by non-automatic means, and to open the circuit automatically at a predetermined overcurrent level without injury to itself when it is properly applied within its rating. The 140G MCB circuit breakers employ different methods to control the operating mechanisms. These methods include stored energy operation, dependent manual/power operation, and independent manual/power operation. When breakers in the 140G MCB family encounter an overcurrent, they can use instantaneous, inverse time delay, and definite time delay overcurrent releases. All these breakers from the Allen-Bradley 140G series of molded-case circuit breakers come with a frame rating of 125 Amps and an interrupting capacity that goes from 25 to 65 kA.
The Allen-Bradley 140G MCB series of circuit breakers are CCC, UL, and CSA certified since they comply with international standards such as the UL, CSA, and IEC standards. Since these circuit breakers have molded cases, they provide short circuit and thermal overcurrent protection by using either mechanical or electronic means. Note that the mechanical means use heater elements to detect the current flow and model the associated heat generated by the current. Additionally, molded case circuit breakers in this family feature either fixed or adjustable trip units. Whether they use fixed or adjustable magnetic and thermal trip units, the motor current rating of these circuit breakers should be less than or equal to 250% of the motor’s full-load ampere rating, or less than or equal to 300% for motors with a current of less than or equal to 100 amperes if the circuit trips on startup. Also, a circuit breaker in the 140G MCB series can be used with a motor current rating of less than 400% for motors with a current rating of more than or equal to 100 Amps if the circuit breaker trips on startup. The safety features of these breakers are capable of preventing accidents such as fires and explosions due to over-current or the overheating of conduits.