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Allen Bradley 140G MCB 140G-K3H4-D30

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140G-K3H4-D30

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The 140G-K3H4-D30 is a robust molded case circuit breaker from Allen-Bradley, part of Rockwell Automation's product lineup. This device is designed to handle a current of up to 400 Amps and features an interrupting rating of 35 kA, ensuring safe operation in demanding electrical circuits.

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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-K3H4-D30

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-K3H4-D30
Weight10.00 lbs (4.54 kg)
FrameK
Amps400
Interrupting Rating35 kA
Protection TypeElectronic LSI
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-K3H4-D30 from Allen-Bradley is a high-performance molded case circuit breaker ideal for industrial applications. This model is housed in a K frame and is rated for a maximum current of 400 Amps. A key feature of this circuit breaker is its impressive interrupting rating of 35 kA, which protects against significant short-circuit currents.

This device incorporates electronic LSI technology, providing precise protection and monitoring capabilities. Operating with four poles, it supports 300 A of rated current, making it versatile for varied circuit configurations. Notably, the breaker is rated for an insulation voltage of 1000 V, suitable for high-energy applications, while handling impulse withstand voltage ratings up to 8 kV.

Weighing 9.15 pounds, the unit is manageable for installation. The breaker's mechanical and electrical life ratings signify its reliability. It supports 120 mechanical operations per hour and 60 electrical operations per hour. The combination of these specifications makes the 140G-K3H4-D30 a dependable choice in electrical systems requiring circuit protection.

Revision Part #Also known as
140G-K3H4-D30 Ser A140G-K3H4-D30/A, Series A, Rev A
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