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Allen Bradley 140G MCB 140G-J6F4-D20

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140G-J6F4-D20

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The Allen-Bradley 140G-J6F4-D20 circuit breaker is a molded case device suitable for high-demand electrical systems. This unit features a maximum current rating of 250 Amps and comes with robust protection factors, including an interrupting rating of 65 kA.

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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-J6F4-D20

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-J6F4-D20
Weight12.00 lbs (5.44 kg)
FrameJ
Amps250
Interrupting Rating65 kA
Protection TypeAdjust Thermal/ Adjust Magnetic
Poles4
Current Range200 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Mechanical Life240 Operations/hr.
Electrical Life120 Operations/hr.
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The 140G-J6F4-D20 model from Allen-Bradley is a highly functional molded case circuit breaker designed for industrial applications. Operating at a frame size of J, it can handle a maximum continuous current of 250 Amps while providing strong interrupting capabilities at 65 kA.

This device's adjustable thermal and magnetic protection allows for flexibility in managing fault conditions, tailored to various applications. Featuring four poles, it supports a current range of up to 200 A, ensuring reliable protection across multiple circuits. With an outstanding rated insulation voltage of 1000V, this breaker delivers safety in high-voltage situations and has a rated impulse withstand voltage of 8 kV, adding another layer of protection against voltage spikes.

Weighing 7.72 pounds, it is manageable yet robust for installation in various settings. The 140G-J6F4-D20 circuit breaker is built for longevity, evidenced by its mechanical and electrical life ratings, allowing for 240 operations per hour mechanically and 120 electrically. This makes it a durable option for continuous operation in demanding environments.

Revision Part #Also known as
140G-J6F4-D20 Ser A140G-J6F4-D20/A, Series A, Rev A
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