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Allen Bradley 140G MCB 140G-K3K3-D30

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140G-K3K3-D30

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The 140G-K3K3-D30 is a molded case circuit breaker from Allen-Bradley. This component operates with a maximum current of 400 Amps and supports a significant interrupting capacity of 35 kA, ensuring reliable performance in critical 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-D30

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-K3K3-D30
Weight10.00 lbs (4.54 kg)
FrameK
Amps400
Interrupting Rating35 kA
Protection TypeElectronic LSIG
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 Allen-Bradley 140G-K3K3-D30 is a robust molded case circuit breaker designed for efficient electrical circuit protection. This model features a frame designation of K and is rated for a maximum current of 400 Amps. It ensures reliable interruption capabilities with a significant interrupting rating of 35 kA, providing enhanced safety against fault conditions.

Circuit protection is managed through electronic LSIG mechanisms, which offer precise overload and short-circuit protection. Operating with 300 A of rated current, the breaker is well-suited for various industrial applications.

This breaker is rated for insulation voltages reaching 1000 volts, which reinforces its application flexibility in high-voltage environments. It also protects against potential surges with an impulse withstand rating of 8 kV.

The 140G-K3K3-D30 weighs approximately 7.17 pounds, making it manageable for installation and maintenance tasks. It supports a mechanical life rated at 120 operations per hour. Additionally, the electrical life is rated at 60 operations per hour, ensuring stable operation over extended periods. This molded case circuit breaker is ideal for safeguarding critical equipment in demanding electrical settings.

Revision Part #Also known as
140G-K3K3-D30 Ser A140G-K3K3-D30/A, Series A, Rev A
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