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Allen Bradley 140G MCB 140G-M5F4-D63

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140G-M5F4-D63

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The 140G-M5F4-D63 circuit breaker from Allen-Bradley operates as a robust molded case design. It is rated for up to 800 Amps and features an interrupting capacity of 50 kA for effective circuit protection.

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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-M5F4-D63

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-M5F4-D63
Weight15.00 lbs (6.80 kg)
FrameM
Amps800
Interrupting Rating50 kA
Protection TypeAdjust Thermal/ Adjust Magnetic
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 Allen-Bradley 140G-M5F4-D63 represents a high-performance solution in molded case circuit breaker technology. Supporting a significant load capacity of 800 Amps, it offers a reliable and robust approach to circuit protection. Designed with a frame classification of M, this device operates effectively within a current range up to 630 amps, making it suitable for extensive industrial applications.

This model features four poles and delivers an interrupting rating of 50 kA, ensuring it can handle fault conditions safely. Adjustable thermal and magnetic protections enhance its versatility in adapting to specific operational requirements. Built to withstand a rated insulation voltage of 1000V, the 140G-M5F4-D63 also endures impulse levels of up to 8 kV, further contributing to its durability in tough conditions.

The circuit breaker is relatively heavy, weighing 33.29 lbs, indicating a robust construction designed for durability. With a mechanical life rated at 120 operations per hour and an electrical life at 60 operations per hour, the 140G-M5F4-D63 is engineered for longevity, making it a dependable choice for various electrical systems.

Revision Part #Also known as
140G-M5F4-D63 Ser A140G-M5F4-D63/A, Series A, Rev A
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