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Allen Bradley 140G MCB 140G-JTF4-D17

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140G-JTF4-D17

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The 140G-JTF4-D17 is a durable molded case circuit breaker crafted by Allen-Bradley under the Rockwell Automation brand. It handles a current capacity of 250 Amps and features adjustable thermal and magnetic protection systems, crucial for safeguarding electrical circuits.

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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-JTF4-D17

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-JTF4-D17
Weight3.00 lbs (1.36 kg)
FrameJ
Amps250
Interrupting RatingTrip Unit
Protection TypeAdjust Thermal/ Adjust Magnetic
Poles4
Current Range170 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-JTF4-D17 molded case circuit breaker is engineered for reliability and protection in electrical applications. It supports a maximum capacity of 250 Amps and is tailored for diverse industrial settings. This model incorporates adjustable thermal and magnetic protection types, allowing for customization based on specific operational requirements.

The breaker consists of four poles and fits into frame type J, maintaining flexibility in configuration for various circuit designs. It operates efficiently within a current range of 170 A and comes with an impressive rated insulation voltage of 1000 volts, making it suitable for demanding environments. Additionally, it can withstand impulse voltages of up to 8 kV, ensuring robust protection against voltage surges.

With a weight of 7.72 lb, it is designed for ease of installation and sturdy performance. It also has a mechanical life rating of 240 operations per hour and an electrical life rating of 120 operations per hour, highlighting its durability and reliability for extended use in different applications.

Revision Part #Also known as
140G-JTF4-D17 Ser A140G-JTF4-D17/A, Series A, Rev A
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