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Allen Bradley 140G MCB 140G-K3I3-D40

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140G-K3I3-D40

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The 140G-K3I3-D40 is a robust molded-case circuit breaker from Allen-Bradley designed by Rockwell Automation. It can handle up to 400 Amps and provides efficient protection thanks to its 35 kA interrupting rating and electronic LSIG technology. This device is suitable for high-performance applications in industrial settings.

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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-K3I3-D40

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-K3I3-D40
Weight15.00 lbs (6.80 kg)
FrameK
Amps400
Interrupting Rating35 kA
Protection TypeElectronic LSIG
Current Range400 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Mechanical Life120 Operations/hr.
Electrical Life60 Operations/hr.
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The Allen-Bradley 140G-K3I3-D40 molded-case circuit breaker ensures reliable performance in rigorous electrical systems. This product features a K frame and substantial specifications, allowing it to handle continuous operation at a current rating of 400 Amps. A notable feature is its interrupting rating of 35 kA, which supports the protection of circuits against fault conditions—a critical aspect in industrial applications.

Equipped with electronic LSIG protection, this breaker is adept at managing overloads and improving operational safety. It is rated to withstand an insulation voltage of up to 1000 volts, providing versatility across different environments. The capability to manage impulse voltages reaching 8 kV is vital for electrical stability during surges.

Weighing 7.17 pounds, the 140G-K3I3-D40 is designed for straightforward installation in various setups. With a mechanical life rated at 120 operations per hour, this circuit breaker ensures longevity in regular use. Additionally, its electrical life rating of 60 operations per hour establishes its dependability in high-frequency operational scenarios. Overall, the 140G-K3I3-D40 is engineered for efficiency and safety, making it an indispensable component in power management systems.

Revision Part #Also known as
140G-K3I3-D40 Ser A140G-K3I3-D40/A, Series A, Rev A
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