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Allen Bradley 140G MCB 140G-J3C3-C50
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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140G-J3C3-C50

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The 140G-J3C3-C50 is a robust molded case circuit breaker designed by Allen-Bradley that is suitable for various industrial applications. It operates at 250 Amps of maximum current and it features fixed thermal and magnetic protection technology. Its interrupting capacity is 35 kA and it can handle significant fault conditions, ensuring reliable circuit protection.

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2 Year DO Supply Warranty
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.
Learn more
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Technical specifications for 140G-J3C3-C50

ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.140G-J3C3-C50
Product TypeMolded Case Circuit Breaker
FrameJ
Amps250
Interrupting Rating35 kA
Protection TypeFixed Thermal/ Fixed Magnetic
Current Range50 A
Rated Insulation Voltage1000 V
Rated Impulse Withstand Voltage8 kV
Weight5.51 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.

The 140G-J3C3-C50 molded case circuit breaker from Allen-Bradley is engineered for high-performance electrical protection. It is designed with a J-frame and rated for a maximum current rating of 250 Amps and 50 Amps of rated current. Its fixed thermal and magnetic trip features provide substantial defense against overcurrent conditions and short circuits.

The circuit breaker's interrupting rating is 35 kA, indicating its ability to safely interrupt high fault currents. This ensures the safety and integrity of electrical systems during fault events.

It is rated for up to 1000 Volts of insulation voltage, allowing for effective operation in demanding environments. In addition, the 140G-J3C3-C50 can withstand impulse voltages up to 8 kV, enhancing its resilience against voltage spikes and transients. Weighing 5.51 lbs., this circuit breaker is robust yet easily integrated into existing system setups.

For reliable performance, it has a mechanical life rating of 240 operations per hour, alongside an electrical life rating of 120 operations per hour. This signifies substantial durability during continuous operation under load conditions, making the 140G-J3C3-C50 an essential component in various control and feeder circuits.

Revision Part #Also known as
140G-J3C3-C50 Ser A140G-J3C3-C50/A, Series A, Rev A
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