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Allen Bradley 140G MCB 140G-J2C4-C40
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140G-J2C4-C40

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The 140G-J2C4-C40 from Allen-Bradley is a durable molded case circuit breaker designed for heavy-duty applications. It has a size J frame, and it accommodates 40 Amps of rated current and a maximum current of 250 Amps. It offers reliable circuit protection with an interrupting rating of 25 kA.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with DO Supply's 2-year warranty.
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Technical specifications for 140G-J2C4-C40

ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.140G-J2C4-C40
Product TypeMolded Case Circuit Breaker
FrameJ
Amps250
Interrupting Rating25 kA
Protection TypeFixed Thermal/ Fixed Magnetic
Poles4
Current Range40 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Weight7.72 lb
Mechanical Life240 Operations/hr.
Electrical Life120 Operations/hr.
Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

A component of the Bulletin 140G product line, the 140G-J2C4-C40 molded-case circuit breaker from Allen-Bradley provides essential protection for electrical circuits. It is capable of managing 40 Amps of rated current and a maximum current of 250 Amps. This device has a type J frame and is designed to handle significant load requirements. This breaker features a rated interrupting capacity of 25 kA to ensure that it can effectively disconnect circuits during overload situations.

The 140G-J2C4-C40 includes four poles. Its protection methods are fixed thermal and fixed magnetic protection ratings, which safeguard devices from sustained overloads and short circuits. This circuit breaker's rated insulation voltage is up to 1000 volts, and it can withstand impulse voltages of up to 8 kV. This design ensures durability in various working environments.

Weighing 7.72 pounds, the unit is compact and manageable for ease of installation. Its mechanical life rating is 240 operations per hour and its electrical life rating is 120 operations per hour. It can endure frequent operational cycles without malfunctioning. The 140G-J2C4-C40 is engineered for reliability and safety in modern electrical applications.

Revision Part #Also known as
140G-J2C4-C40 Ser A140G-J2C4-C40/A, Series A, Rev A
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