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Allen Bradley 140G MCB 140G-M5I4-D63

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140G-M5I4-D63

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The 140G-M5I4-D63 is a significant molded case circuit breaker from Allen-Bradley, part of Rockwell Automation. This device operates at 800 amps and has a robust interrupting capacity of 50 kA, ensuring effective protection for various 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-M5I4-D63

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-M5I4-D63
Weight32.00 lbs (14.51 kg)
FrameM
Amps800
Interrupting Rating50 kA
Protection TypeElectronic LSIG
Poles4
Current Range630 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Mechanical Life120 Operations/hr.
Electrical Life60 Operations/hr.
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The 140G-M5I4-D63 molded case circuit breaker is designed for demanding power applications. Operating at 800 amperes, this component is essential for distributing electrical power safely. It includes four poles and is rated with a significant interrupting capacity of 50 kA, making it capable of handling fault conditions effectively.

This breaker utilizes electronic LSIG protection, which provides enhanced safety features against overloads and short circuits. The current range for this model extends to 630 A, making it versatile for a broad spectrum of electrical connections. The rated insulation voltage is 1000 volts, which indicates its suitability for high-voltage environments. Additionally, the rated impulse withstand voltage reaches 8 kV, ensuring resilience against transient electrical disturbances.

Weighing in at 33.29 pounds, this device is robust yet manageable for installation. It has a mechanical life expectancy of 120 operations per hour and an electrical life rating of 60 operations per hour, indicating its durability even in regular usage. The 140G-M5I4-D63 is an effective choice for providing reliable circuit protection across various industrial applications.

Revision Part #Also known as
140G-M5I4-D63 Ser A140G-M5I4-D63/A, Series A, Rev A
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