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Allen Bradley 140G MCB 140G-K0F4-D30

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140G-K0F4-D30

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The 140G-K0F4-D30 is a high-capacity molded case circuit breaker from Allen-Bradley. It has a K-frame design and supports up to 400 amps of maximum current. With an impressive interrupting capacity rated at 100 kA, this breaker ensures reliable performance in heavy-duty applications.

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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-K0F4-D30

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-K0F4-D30
Weight10.00 lbs (4.54 kg)
FrameK
Amps400
Interrupting Rating100 kA
Protection TypeAdjust Thermal / Adjust Magnetic
Poles4
Current Range300 A
Rated Insulation Voltage1000 V
Rated Impulse Withstand Voltage8 kV
Mechanical Life120 Operations/hr.
Electrical Life60 Operations/hr.
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The 140G-K0F4-D30 is a molded case circuit breaker designed by Allen-Bradley under Rockwell Automation. It features a robust K-frame construction and supports a maximum current rating of 400 Amps, making it suitable for demanding industrial applications.

This device has an interrupting rating of 100 kA for effectively handling fault currents to ensure circuit safety. The breaker features four poles and incorporates adjustable thermal and magnetic protection options, allowing for customized operation according to specific system requirements. The adjustability in these protection options enhances the reliability of the breaker.

This breaker operates with a rated current range of 300 Amps and provides versatility in various electrical environments. The 140G-K0F4-D30 is engineered to withstand rated insulation voltages of 1000 volts, ensuring safe operation even under high-stress conditions. Additionally, it can handle impulse withstand voltages of up to 8 kV, reinforcing its durability against voltage spikes.

With a total weight of 9.15 pounds, this circuit breaker is relatively lightweight, which aids in installation and maintenance. It is rated for a mechanical life of 120 operations per hour, while the electrical life is rated at 60 operations per hour. Overall, the 140G-K0F4-D30 serves as a dependable choice for maintaining circuit integrity and safety in demanding electrical applications.

Revision Part #Also known as
140G-K0F4-D30 Ser A140G-K0F4-D30/A, Series A, Rev A
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