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Allen Bradley 140G MCB 140G-J2F3-D20
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-J2F3-D20

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The 140G-J2F3-D20 thermal/magnetic circuit breaker is an adjustable type of thermal/magnetic circuit breaker. It has been designed and manufactured by Allen-Bradley/Rockwell Automation in the Bulletin 140G product line. The 140G-J2F3-D20 thermal/magnetic circuit breaker’s thermal and magnetic trip ratings can be adjusted by the users depending on the needs of their systems and applications. The supported thermal trip ratings are 140 to 200 Amps and the supported magnetic trip ratings are 1000 to 2000 Amps. The 140G-J2F3-D20 thermal/magnetic circuit breaker can be installed in a cabinet for protection from dust and moisture.

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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-J2F3-D20

ManufacturerEaton Cutler-Hammer
BrandEaton Cutler-Hammer
Part Number/Catalog No.140G-J2F3-D20
Product TypeMolded Case Circuit Breaker
FrameJ
Amps250
Interrupting Rating25 kA
Protection TypeAdjust Thermal/ Adjust Magnetic
Current Range200 A
Rated Insulation Voltage1000V
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-J2F3-D20 is a J-frame molded case circuit breaker that has been designed and produced by Allen-Bradley/Rockwell Automation to provide protection to control systems against short circuit currents and abnormal currents that could cause anomalies in the operating process. It comes with fixed thermal and fixed magnetic mechanisms that work as a complement to each other in order to perform precise circuit-breaking functions. The Allen-Bradley 140G-J2F3-D20 J-frame molded case circuit breaker has an interrupting capacity of 25 kiloamps. Fixed thermal circuit breakers are temperature-sensitive. This means that at a temperature below 40 degrees Celsius, it is possible that the breaker will carry more current than its current rating allows. For temperatures above 40 degrees Celsius, the breaker might carry less current than it is rated for.

The Allen-Bradley/Rockwell Automation 140G-J2F3-D20 J-frame molded case circuit breaker can be placed inside an enclosure that also provides an installation mechanism. Circuit breakers are similar to fuses, but the advantage of circuit breakers is that once these have performed a tripping action, they can recover and start operating again almost immediately. The disadvantage of fuses is that they are a 1-time protection means and once they have tripped, they need to be replaced by new fuses. Circuit breakers like the 140G-J2F3-D20 circuit breaker are a more economical choice than fuses in many applications. The Allen-Bradley 140G-J2F3-D20 J-frame molded case circuit breaker comes with a current rating of 200 Amps and it is a fixed magnetic and fixed thermal circuit breaker with 3 poles and a frame current rating of 250 Amps.

Revision Part #Also known as
140G-J2F3-D20 Ser A140G-J2F3-D20/A, Series A, Rev A
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