140G-H0C4-C16
This specific circuit breaker operates with a frame classification of H, accommodating a current range that reaches 16 Amps. The device features four poles and incorporates fixed thermal and magnetic
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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-H0C4-C35
Designed as part of the 140G series, the 140G-H0C4-C35 model features a frame size categorized under H. This circuit breaker includes four poles and accommodates a current range of up to 35 A. It offe
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140G-H0I4-C25
This model supports a current range of 25 A and operates effectively at an insulation voltage of 1000 V. It withstands impulse voltages of up to 8 kV. This breaker is constructed with an H frame and w
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140G-H0I4-D12
This molded case circuit breaker operates on a 1000 V rated insulation voltage and can withstand impulse voltages up to 8 kV. The protection method utilized is electronic LSIG, with four poles availab
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140G-H15C3-C50
This circuit breaker features an interrupting capacity of 150 kA and supports a current range of 50 amps. It has a fixed thermal and magnetic protection mechanism. With a rated insulation voltage of 1
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140G-H15F4-D16
This unit, categorized within the 140G MCB series, supports four poles and offers adjustable thermal and magnetic protection features. It enables operation in a current range that reaches up to 160 A.
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4.8
140G-H15H3-C60
The 140G-H15H3-C60 circuit breaker offers a current range of 60 A and a robust rated insulation voltage of 1000 V. It is also rated for an impulse withstand voltage of 8 kV. The device weighs 2.65 pou
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140G-H15I3-D10
This molded case circuit breaker, model 140G-H15I3-D10, is built with an H-frame structure. It provides excellent protection with a maximum current range of 100 A. The insulation voltage rating is 100
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4.5
140G-H3C4-C35
This circuit breaker includes four poles and operates effectively within a current range of 35 A. Its rated insulation voltage is 1000 V, while it can withstand impulse voltages up to 8 kV. Weighing 3
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140G-H6H4-C25
Designed for reliability, this circuit breaker operates up to 4 poles and supports a current range of 25 Amps. It features electronic LSI protection, enhancing safety during operations. Rated for insu
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4.7
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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.