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Allen Bradley 140G MCB 140G-K3I4-D30

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140G-K3I4-D30

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The 140G-K3I4-D30 from Allen-Bradley is a molded case circuit breaker designed for robust applications. This unit supports a maximum current of 400 Amps and has an interrupting capacity of 35 kA, making it suitable for harsh environments.

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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-K3I4-D30

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-K3I4-D30
Weight10.00 lbs (4.54 kg)
FrameK
Amps400
Interrupting Rating35 kA
Protection TypeElectronic LSIG
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-K3I4-D30 molded case circuit breaker, manufactured by Allen-Bradley under Rockwell Automation, is engineered for high-performance electrical applications. It operates within a K frame and can handle a maximum current load of 400 Amps. This circuit breaker is designed with a 35 kA interrupting rating, which provides reliable performance in case of electrical faults.

Equipped with electronic LSIG protection, the 140G-K3I4-D30 has advanced safety features integrated directly into the design. This model incorporates four poles and accommodates 300 A of rated current to address different circuit configurations. It is rated for insulation voltages of up to 1000 volts, allowing for safe operation in high-voltage environments. Additionally, a rated impulse withstand voltage of 8 kV enhances its capability to handle transient voltage spikes effectively.

The unit's weight is 9.15 pounds, making it manageable for various installation scenarios. Its mechanical life rating is 120 operations per hour, ensuring longevity under regular use, while the electrical life rating of 60 operations per hour indicates durability for continued performance in dynamic situations. The 140G-K3I4-D30 is a vital component in any system requiring robust and reliable circuit protection.

Revision Part #Also known as
140G-K3I4-D30 Ser A140G-K3I4-D30/A, Series A, Rev A
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