140G-G2C4-C16
The 140G MCB series features circuit breakers designed for performance and reliability. The 140G-G2C4-C16 model is configured with four poles and offers a current operating range starting at 16 amps.
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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-G2C4-C20
The 140G-G2C4-C20 model is a molded case circuit breaker featuring a G frame rated for 125 amps. It is equipped with four poles and supports fixed thermal and magnetic protection mechanisms, ensuring
Available
5.0
140G-G2C4-C25
The 140G-G2C4-C25 model functions as a molded case circuit breaker, capable of handling up to 125 amps. It features a robust interrupting rating of 25 kA and is structured with four poles. This device
Available
4.8
140G-G2C4-C30
The 140G-G2C4-C30 model is a molded case circuit breaker intended for industrial applications, featuring a G frame design. It operates at 125 amps and has a four-pole configuration, making it ideal fo
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140G-G2C4-C32
The 140G-G2C4-C32 represents a molded case circuit breaker with a G frame configuration. This unit supports 125 amperes and features a four-pole design, effectively managing electrical distribution. I
Available
4.7
140G-G2C4-C35
The Allen-Bradley 140G-G2C4-C35 is a molded case circuit breaker designed to meet diverse electrical protection needs. With a robust and compact G-frame construction, this unit supports a rated curren
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140G-G2C4-C40
The 140G-G2C4-C40 molded case circuit breaker operates at a rated current of 125 Amps and supports a maximum interruption rating of 25 kA. It features a four-pole configuration and fixed thermal and m
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5.0
140G-G2C4-C45
The 140G-G2C4-C45 is a molded case circuit breaker designed for efficient electrical protection. It features a frame type G, supporting a nominal current of 125 amps and accommodating a current range
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140G-G2C4-C50
The Allen-Bradley 140G-G2C4-C50 is a molded case circuit breaker designed within the 140G MCB series. It features a four-pole configuration and offers a current range of up to 50 amps, providing robus
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4.8
140G-G2C4-C60
The 140G-G2C4-C60 is a molded case circuit breaker featuring a G Frame. It operates at 125 amps and is designed with four poles. Its fixed thermal and magnetic protection types ensure reliable circuit
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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.