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Allen Bradley 140G MCB 140G-JTC4-C30

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140G-JTC4-C30

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The Allen-Bradley 140G-JTC4-C30 is a robust molded case circuit breaker designed for reliable performance in electrical systems. Operating within a frame type J, this device can handle a maximum current of 250 amps and offers a fixed thermal and fixed magnetic protection type, making it suitable for various applications.

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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-JTC4-C30

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-JTC4-C30
Weight3.00 lbs (1.36 kg)
FrameJ
Amps250
Interrupting RatingTrip Unit
Protection TypeFixed Thermal/ Fixed Magnetic
Poles4
Current Range30 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Mechanical Life240 Operations/hr.
Electrical Life120 Operations/hr.
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The 140G-JTC4-C30, manufactured by Allen-Bradley under Rockwell Automation, functions as a molded case circuit breaker, designed to efficiently protect electrical circuits. This unit has a current capacity of 250 amps and operates within a J frame. It is equipped with fixed thermal and fixed magnetic protection, enhancing its reliability against overload conditions.

The circuit breaker features four poles, allowing it to be used in various configurations. It operates with a current rating up to 30 amps, making it versatile for different applications. The rated insulation voltage of 1000 volts provides ample safety for high-voltage environments, while it can endure rated impulse withstand voltages of 8 kV, ensuring protection against voltage surges.

Weighing 7.72 pounds, the device is well-suited for installation in electrical panels. It ensures a mechanical lifespan of 240 operations per hour, alongside an electrical life of 120 operations per hour, confirming reliable operation for extended periods. The 140G-JTC4-C30 circuit breaker is designed to meet rigorous performance standards in various industrial settings.

Revision Part #Also known as
140G-JTC4-C30 Ser A140G-JTC4-C30/A, Series A, Rev A
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