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Allen Bradley 140G MCB 140G-K3K4-D30

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140G-K3K4-D30

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The 140G-K3K4-D30 is a molded case circuit breaker from Allen-Bradley designed for industrial applications. Featuring a type K frame, it is rated for a maximum current of 400 Amps and provides reliable protection with a 35 kA interrupting capacity.

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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-K3K4-D30

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-K3K4-D30
Weight10.00 lbs (4.54 kg)
FrameK
Amps400
Interrupting Rating35 kA
Protection TypeElectronic LSIG
Poles4
Current Range300 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-K3K4-D30 molded case circuit breaker is engineered for efficiency in heavy-duty applications. This model has a robust current capacity of 400 Amps, making it suited for significant electrical loads. The unit is part of the K-frame series and features an interrupting rating of 35 kA, ensuring effective protection against potential overcurrent conditions.

This breaker utilizes an electronic LSIG protection system, providing enhanced safety measures tailored to various operational needs. With four poles, it accommodates complex circuit configurations. It also supports 300 A of rated current, which is critical for a variety of industrial settings. Additionally, the rated insulation voltage can reach 1000 volts, making it practical in systems that require high-voltage handling.

The rated impulse withstand voltage is specified at 8 kV, which further enhances its reliability in dynamic conditions. Weighing 9.15 pounds, the 140G-K3K4-D30 is conveniently designed for mounting and integration into existing systems. This unit supports 120 mechanical per hour, while its electrical operations are rated at 60 per hour, ensuring that it meets the demands of continuous operation in industrial environments.

Revision Part #Also known as
140G-K3K4-D30 Ser A140G-K3K4-D30/A, Series A, Rev A
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