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Allen Bradley 140G MCB 140G-JTH3-D10

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140G-JTH3-D10

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The 140G-JTH3-D10 is a molded case circuit breaker designed by Allen-Bradley under Rockwell Automation. It features an electronic LSI protection system, allowing for precision control and reliability. With a current handling capability of 250 Amps, this unit is rated for use up to 1000 Volts.

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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-JTH3-D10

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-JTH3-D10
Weight3.00 lbs (1.36 kg)
FrameJC
Amps250
Interrupting RatingTrip Unit
Protection TypeElectronic LSI
Current Range100 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Mechanical Life240 Operations/hr.
Electrical Life120 Operations/hr.
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The Allen-Bradley 140G-JTH3-D10, part of the 140G series, is a specialized molded case circuit breaker. Engineered specifically for reliability, it can handle up to 250 Amps, making it an effective choice for various applications. The breaker employs electronic LSI protection, which enhances its capability to manage circuit interruptions efficiently. With a JC frame designation, this circuit breaker is designed for installation in diverse industrial settings.

This model operates with a rated insulation voltage of up to 1000 volts, ensuring safety and durability in high-voltage environments. Its rated impulse withstand voltage of 8 kV provides additional protection against electrical surges, making it well-suited for harsh conditions. It has a defined current range of 100 A, allowing for precise adjustments to meet operational needs.

The 140G-JTH3-D10 weighs in at 5.51 pounds, reflecting a robust build without excessive bulk, which aids in easy installation and maintenance. Designed for longevity, the breaker’s mechanical life is rated at 240 operations per hour, while its electrical life is rated at 120 operations per hour, indicating its capability to perform effectively through rigorous cycles. This circuit breaker provides essential functions for protecting circuits and ensuring operational reliability.

Revision Part #Also known as
140G-JTH3-D10 Ser A140G-JTH3-D10/A, Series A, Rev A
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