140G-H15C3-C25
The 140G-H15C3-C25 is a molded case circuit breaker that operates with a frame size type H. With a maximum current rating of 125 Amps and a fixed thermal/magnetic protection method, it caters to load
Call
4.7
Free UPS Ground on All Orders!
+1 (919) 205-4392
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.
Learn more
Browse 140G MCB
Browse available units in our catalog of 140G MCB.
140G-H15C3-C35
The molded case circuit breaker belonging to the 140G series is designed to operate at a maximum rated insulation voltage of 1000 volts. This particular model features an operational current range of
Call
4.6
140G-H15C3-C70
The 140G-H15C3-C70 circuit breaker is characterized by its fixed thermal and fixed magnetic protection types. It functions within a current range of up to 70 A. The insulation voltage rating is noted
Call
5.0
140G-H15C4-C15
This molded case circuit breaker is engineered within the 140G series, featuring an H frame design. Capable of addressing electrical systems with insulation voltage ratings of 1000 V, it withstands im
Call
4.6
140G-H15F3-D12
This versatile switch employs an H-frame design and offers adjustable thermal and magnetic protection settings. It operates efficiently within a current range of 120 A and maintains rated insulation v
Call
5.0
140G-H15I4-D10
Part of the 140G series, the 140G-H15I4-D10 operates at a rated insulation voltage of 1000 volts and a rated impulse withstand voltage of 8 kV. It has a current range of 100 A with mechanical life rat
Call
5.0
140G-H3C3-C16
The Allen-Bradley 140G-H3C3-C16 circuit breaker features an H frame design. Its operating parameters include a current range of 16 A and a rated insulation voltage of 1000 V. Additionally, it has a ra
Available
4.7
140G-H3C4-C30
With a frame classification of H, this circuit breaker is equipped with four poles and handles a current range of 30 A. Its protection features include fixed thermal and magnetic systems. The device h
Call
4.6
140G-H3H3-D12
The 140G-H3H3-D12 circuit breaker features electronic LSI protection and operates within a current range of 120 A. It is rated for an insulation voltage of 1000 V and withstands impulses of up to 8 kV
Call
5.0
140G-H6C3-C32
The 140G-H6C3-C32 features fixed thermal and magnetic protection. It operates with a current range that reaches 32 A and boasts a rated insulation voltage of 1000 V. The impulse withstand voltage is r
Call
4.9
Showing 471-480 of
1,219
results
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.