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Allen Bradley 140G MCB 140G-JTH4-D10

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140G-JTH4-D10

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The 140G-JTH4-D10 circuit breaker is a molded case type developed by Allen-Bradley. This device operates with a maximum current of 250 Amps and includes four poles for electrical configuration. It is equipped with an interrupting rating specified for its trip unit and utilizes electronic LSI 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-JTH4-D10

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-JTH4-D10
Weight3.00 lbs (1.36 kg)
FrameJ
Amps250
Interrupting RatingTrip Unit
Protection TypeElectronic LSI
Poles4
Current Range100 A
Rated Insulation Voltage1000 V
Rated Impulse Withstand Voltage8 kV
Mechanical Life240 Operations/hr.
Electrical Life120 Operations/hr.
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The 140G-JTH4-D10 is a high-performance molded case circuit breaker by Allen-Bradley under Rockwell Automation. This breaker is designed to manage a maximum current of 250 Amps effectively. It features four poles, making it suitable for various three-phase applications. The device has an interrupting rating that corresponds to its trip unit, designed for reliable protection in electrical systems.

The product employs electronic LSI protection, enhancing its capability to detect and respond to overload conditions. Its versatile current range can handle operations up to 100 A, ensuring flexibility in different settings. The breaker is rated for an insulation voltage of 1000 volts, ensuring it remains operational in demanding environments. Additionally, it can withstand impulse voltages rated up to 8 kV, offering essential protection against transient surges.

Weighing in at 7.72 pounds, the 140G-JTH4-D10 is manageable for installation and maintenance within electrical panels. The mechanical lifespan of this breaker is about 240 operations per hour, while it maintains an electrical life of 120 operations per hour, ensuring longevity and reliability in various applications.

Revision Part #Also known as
140G-JTH4-D10 Ser A140G-JTH4-D10/A, Series A, Rev A
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