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Allen Bradley 140G MCB 140G-H3C4-C70

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140G-H3C4-C70

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The 140G-H3C4-C70 is a molded case circuit breaker engineered by Allen-Bradley, a subsidiary of Rockwell Automation. Rated for up to 125 amps, this breaker ensures reliable protection against short circuits with an interrupting rating of 35 kA.

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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-H3C4-C70

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-H3C4-C70
Weight3.00 lbs (1.36 kg)
FrameH
Amps125
Interrupting Rating35 kA
Protection TypeFixed Thermal/ Fixed Magnetic
Poles4
Current Range70 A
Rated Insulation Voltage1000 V
Rated Impulse Withstand Voltage8 kV
Mechanical Life240 Operations/hr.
Electrical Life120 Operations/hr.
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The 140G-H3C4-C70 molded case circuit breaker from Allen-Bradley provides essential electrical protection. Constructed with a robust H frame, it is rated for a maximum current of 125 amps, which is suited for demanding applications. The circuit breaker can interrupt fault currents of up to 35 kA, enhancing safety in the electrical system.

This breaker features four-pole construction, making it ideal for multi-phase setups. It operates under fixed thermal and magnetic protection types, effectively managing overload and short-circuit conditions. The rated insulation voltage reaches 1000 V, providing reliable performance in high-voltage environments.

Its impulse withstand voltage rate is specified at 8 kV, ensuring that the device can handle transient voltage spikes. Weighing approximately 3.53 pounds, the 140G-H3C4-C70 is compact and easy to install. The breaker is rated for mechanical usage at 240 operations per hour and electrical operations at 120 per hour, indicating its long-term reliability and durability in active electrical circuits.

Revision Part #Also known as
140G-H3C4-C70 Ser A140G-H3C4-C70/A, Series A, Rev A
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