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Allen Bradley 140G MCB 140G-M5H3-D80

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140G-M5H3-D80

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The 140G-M5H3-D80 is a heavy-duty molded case circuit breaker rated for 800 amps, manufactured by Allen-Bradley under Rockwell Automation. With an interrupting capacity of 50 kA, it utilizes electronic LSI protection, ensuring reliable operation in demanding environments.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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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-M5H3-D80

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-M5H3-D80
UPC887172313837
Weight15.00 lbs (6.80 kg)
FrameM
Amps800
Interrupting Rating50 kA
Protection TypeElectronic LSI
Current Range800 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-M5H3-D80 molded case circuit breaker is engineered for high-capacity electrical systems. This unit is rated at 800 Amps, making it suitable for substantial load applications where safety is paramount. The device's frame is classified as M, supporting robust installation requirements. The interrupting capability is rated at 50 kA, which provides essential protection against high fault currents.

This circuit breaker employs electronic LSI protection, which enhances operational reliability if conditions change suddenly. The specified current range is maintained at 800 A, ensuring it can handle demanding electrical requirements efficiently. With a rated insulation voltage of 1000 volts, it provides versatility in various industrial settings. The ability to withstand impulse voltages up to 8 kV further emphasizes its robustness against transient electrical events.

Constructed to meet precise standards, the unit has a weight of 26.68 pounds, providing a solid yet manageable profile for installation. The mechanical endurance is rated at 120 operations per hour, while the electrical life is estimated at 60 operations per hour, reinforcing its suitability for continuous use in high-demand environments. Overall, the 140G-M5H3-D80 represents a reliable and effective solution for modern electrical protection needs.

Revision Part #Also known as
140G-M5H3-D80 Ser A140G-M5H3-D80/A, Series A, Rev A
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