140G-J6C3-C35
This unit, part of the 140G series, is classified with a J frame and supports a current range of 35 A. It offers ratings of 1000 V for its insulation voltage, and can withstand impulse voltages up to
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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-J6C3-C63
This molded case circuit breaker utilizes fixed thermal and fixed magnetic protection types, handling a current range of up to 63 Amps. It is rated for insulation up to 1000 volts and withstands impul
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140G-J6C4-C35
This breaker utilizes fixed thermal and magnetic protection types and encompasses four poles. It can handle a current range up to 35 amps and is rated for insulation at 1000 volts. The impulse withsta
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140G-JC0H3-D10
Designed with a JC frame, this breaker operates within a current range of 100 A. It is rated for insulation voltages up to 1000 V and can withstand impulse voltages reaching 8 kV. Constructed to be li
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140G-JC6I3-D25
Designed for continuous operation, this molded case circuit breaker features a JC frame. It operates at a rated insulation voltage of 1000 volts and can withstand impulse voltages of up to 8 kV. It ha
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140G-JTC3-C25
This device offers a current range of 25 A and operates under a frame classification of JC. The circuit breaker is rated for insulation up to 1000 V and has an impulse withstand voltage of 8 kV. Weigh
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140G-JTC3-C40
This circuit breaker operates within a fixed current range of 40 A and offers a rated insulation voltage of 1000 V. The rated impulse withstand voltage is 8 kV. With a frame size designated as JC, it
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140G-JTF3-D12
This molded case circuit breaker operates within a current range of 120 A and includes a trip unit for interrupting rating. It supports rated insulation voltages of up to 1000 V while withstanding imp
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140G-K0H4-D40
This circuit breaker operates with four poles and is designed for a current rating of 400 A. It has a rated insulation voltage of up to 1000 volts and can withstand impulse voltages of 8 kV. The unit
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140G-K0I3-D30
This device utilizes a K frame and is equipped with electronic LSIG protection technology. Its rated current is 300 A and its maximum current is 400 A, making it suitable for use in demanding environm
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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.