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Allen Bradley 140G MCB 140G-K3F3-D40

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

140G-K3F3-D40

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The Allen-Bradley 140G-K3F3-D40 circuit breaker is a Bulletin 140G series circuit breaker with a molded case and with adjustable thermal and magnetic trip ratings. Its thermal trip ratings can be adjusted between 280 and 400 Amps and its magnetic trip ratings can be adjusted between 2000 and 4000 Amps. The 140G-K3F3-D40 circuit breaker comes with a Size K frame, 3 poles, and 25-millimeter phase barriers. It is designed to operate at temperatures between 0 and 40 degrees Celsius or 32 and 104 degrees Fahrenheit. The 140G-K3F3-D40 circuit breaker is easy to install in an industrial system because it can be mounted in almost any position.

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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-K3F3-D40

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-K3F3-D40
UPC887172307256
Weight20.00 lbs (9.07 kg)
FrameK
Amps400
Interrupting Rating35 kA
Protection TypeAdjust Thermal/ Adjust Magnetic
Current Range400 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Mechanical Life120 Operations/ hr.
Electrical Life60 Operations/ hr.

Manufactured by Eaton Cutler-Hammer, the 140G-K3F3-D40 molded case circuit breaker is part of the 140G circuit breakers series. This module runs on a voltage rating of 600 Volts AC, with a current rating of 400 Amps. The 140G-K3F3-D40 circuit breaker comes in a K size frame and it also features bolt-on connection, 3 poles, and 3 operating phases. It comes with the adjustable thermal-magnetic protection type and has the li–long-time and instantaneous options. The AIC rating of this circuit breaker is 35 kA at 480 Volts AC. The 140G-K3F3-D40 molded case circuit breaker features a wide range of fault disruption ratings from 25 to 200 kA that provides for a variety of applications. The 140G circuit breakers are available in many sizes and different current ratings ranging from 16 to 3000 Amps and they come with the most common frames types as well as the standard accessories that make them easy to use.

As with the other 140G molded case circuit breakers, the Allen-Bradley 140G-K3F3-D40 circuit breaker provides thermal protection for overcurrent and short-circuit situations. These devices are also designed to offer thermal protection through mechanical means by using the heater elements or electronics that aid in detecting the current flow and then modeling the heat generated by the current. These circuit breakers are made to be available to help in the quick and easy configuration of nearly any type of application project. They can be accessed with the AC and DC thermal-magnetic protection and the AC electronic protection to match a wide range of installation requirements. Besides, they are universally accepted and approved for UL and IEC related projects.

Revision Part #Also known as
140G-K3F3-D40 Ser A140G-K3F3-D40/A, Series A, Rev A
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