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Allen Bradley 140G MCB 140G-J2F4-D17

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140G-J2F4-D17

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The 140G-J2F4-D17 molded-case circuit breaker from Allen-Bradley offers reliable protection for electrical systems. This device can handle 170 amps of rated current and up to 250 amps of maximum current. It includes adjustable thermal and magnetic protection mechanisms for operational flexibility.

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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-J2F4-D17

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-J2F4-D17
Weight10.00 lbs (4.54 kg)
FrameJ
Amps250
Interrupting Rating25 kA
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-J2F4-D17 is a high-capacity molded-case circuit breaker designed for performance and safety in various applications. It operates effectively under demanding conditions with 170A of rated current and 250A of maximum current. It features a size J frame and is compatible with a wide range of systems.

This breaker model is structured with four poles to manage multiple circuits and offers adjustable thermal and magnetic protection types. Its adjustable protection features support responses to specific fault conditions. The interrupting rating of the breaker is 25 kA, enabling it to effectively manage short-circuit events and ensure protection for connected equipment.

The unit effectively operates at rated insulation voltages of up to 1000 volts. Additionally, it can withstand impulse voltages of up to 8 kV, providing an extra layer of resilience for fluctuating electrical environments.

At 7.72 pounds, the circuit breaker can be easily and efficiently installed in systems requiring optimal protection without undue burden. It is designed to withstand frequent operation with a rated mechanical life of 240 operations per hour and an electrical life of 120 operations per hour. Overall, the 140G-J2F4-D17 circuit breaker is engineered to deliver reliable and adjustable protection for industrial electrical systems.

Revision Part #Also known as
140G-J2F4-D17 Ser A140G-J2F4-D17/A, Series A, Rev A
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