Free UPS Ground on All Orders!
Request a
Fast Quote
Account
Cart
Quote
+1 (919) 205-4392
Allen Bradley 140G MCB 140G-J3C4-C40

Product image is representative; revision or series may vary. Contact us to request a specific version.

140G-J3C4-C40

|
Need a Specific Revision?

The 140G-J3C4-C40 is a reliable molded-case circuit breaker offered by Allen-Bradley as part of Rockwell Automation. This unit can handle a maximum current rating of 250 A and features an interrupting rating of 35 kA. It is suitable for protecting a variety of electrical circuits.

Call for an immediate quote
2 Year DO Supply Warranty
Available
Ships from Raleigh, NC
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 of our products come with DO Supply's 2-year warranty.
Learn more
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.

Technical specifications for 140G-J3C4-C40

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-J3C4-C40
Weight10.00 lbs (4.54 kg)
FrameJ
Amps250
Interrupting Rating35 kA
Protection TypeFixed Thermal/ Fixed Magnetic
Poles4
Current Range40 A
Rated Insulation Voltage1000 V
Rated Impulse Withstand Voltage8 kV
Mechanical Life240 Operations/hr.
Electrical Life120 Operations/hr.
View as PDF
Request a Repair

The 140G-J3C4-C40 molded-case circuit breaker, manufactured by Allen-Bradley, plays a critical role in electrical protection systems. With 40 amps of rated current and a maximum current rating of 250 amps, this device is engineered to effectively interrupt fault conditions. It has an interrupting rating of 35 kA.

Designed with fixed thermal and magnetic protection mechanisms, this circuit breaker safeguards circuits from overcurrent situations. It has four poles, making it adaptable for use in three-phase systems.

This breaker's rated insulation voltage is 1000 volts, enhancing its capability for high-voltage operations. Additionally, it withstands impulse voltages of 8 kV for robust performance during transient events.

Weighing 7.72 lbs., its dimensions and weight support straightforward installation. The breaker's mechanical life is rated at 240 operations per hour, while its electrical life is rated at 120 operations per hour, demonstrating durability and reliability in demanding environments. Overall, the 140G-J3C4-C40 is essential for ensuring electrical safety and efficiency in different applications.

Revision Part #Also known as
140G-J3C4-C40 Ser A140G-J3C4-C40/A, Series A, Rev A
Don't see your particular revision? Contact us now.