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Allen Bradley 140G MCB 140G-K3K3-D40

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140G-K3K3-D40

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The 140G-K3K3-D40 model is a molded case circuit breaker from Allen-Bradley. Rated for a maximum current of 400 Amps, it offers robust protection with an interrupting capacity of 35 kA. This device employs electronic LSIG protection, making it suitable for a variety of 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-K3K3-D40

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-K3K3-D40
Weight10.00 lbs (4.54 kg)
FrameK
Amps400
Interrupting Rating35 kA
Protection TypeElectronic LSIG
Current Range400 A
Rated Insulation Voltage1000 V
Rated Impulse Withstand Voltage8 kV
Mechanical Life120 Operations/hr.
Electrical Life60 Operations/hr.
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The Allen-Bradley 140G-K3K3-D40 is engineered as a high-capacity molded case circuit breaker, ideal for demanding electrical environments. This rugged device supports an input current of up to 400 Amps and handles significant loads with an interrupting rating of 35 kA. It features electronic LSIG protection, providing precise fault detection and safety in operation.

Constructed in a type K frame, it can efficiently operate with a rated insulation voltage of 1000 volts. Additionally, it withstands impulse voltages of up to 8 kV, ensuring reliability in fluctuating electrical conditions. The unit weighs 7.17 lbs., facilitating manageable installation.

This breaker supports 120 mechanical operations per hour, which underscores its capability to function consistently in active environments. Furthermore, its electrical life rating of 60 operations per hour affirms its durability during extended use. Overall, the 140G-K3K3-D40 stands as a dependable choice for advanced circuit protection in industrial applications.

Revision Part #Also known as
140G-K3K3-D40 Ser A140G-K3K3-D40/A, Series A, Rev A
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