Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with DO Supply's 2-year warranty.

Learn more

140G-JTF4-D12

|

Need a Specific Revision?

The 140G-JTF4-D12 from Allen-Bradley is a precise solution for circuit protection, designed as a molded case circuit breaker. This robust device is capable of handling 250 amperes per pole and operates with four poles. It features an adjustable thermal and magnetic protection scheme to ensure reliable operational safety.

Call for an immediate quote

2 Year DO Supply Warranty

Available

Ships from Raleigh, NC

Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with DO Supply's 2-year warranty.

Learn more

Warranty

We sell industrial automation parts backed by our 2-year DO Supply Warranty.
Shipping

Same-day domestic and expedited international shipping with UPS, FedEx, DHL, and more.
Payment Methods

AMEX, Visa, MasterCard, Discover, wire transfer, and more, plus flexible payment plans.
Repairs & Exchanges

Repair and exchange services for all existing automation products.
Reseller Options

Drop shipping, blind shipping, and account shipping with no extra fees.

Technical specifications for 140G-JTF4-D12

Manufacturer	Rockwell Automation
Brand	Allen-Bradley
Part Number/Catalog No.	140G-JTF4-D12
Product Type	Molded Case Circuit Breaker
Frame	J
Amps	250
Interrupting Rating	Trip Unit
Protection Type	Adjust Thermal/ Adjust Magnetic
Poles	4
Current Range	120 A
Rated Insulation Voltage	1000V
Rated Impulse Withstand Voltage	8 kV
Weight	7.72 lb
Mechanical Life	240 Operations/hr.
Electrical Life	120 Operations/hr.

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.

View as PDF

Request a Repair

The 140G-JTF4-D12 circuit breaker, manufactured by Allen-Bradley under Rockwell Automation, is engineered for high-performance applications. It provides critical current protection in electrical environments. With a current rating of 250 amperes, this molded case circuit breaker supports four-pole configurations, making it suitable for a wide range of applications including three-phase setups.

This breaker features adjustable thermal and magnetic trip settings which enable customization according to the specific requirements of the application. Its design facilitates an operational current range of up to 120 A, providing flexibility in various scenarios. The rated insulation voltage stands at 1000 volts, ensuring it can be utilized safely in environments with elevated electrical demands. Furthermore, it is rated to endure impulse voltages as high as 8 kV, giving it enough resilience against transient electrical disturbances.

The unit is built for long-term durability and efficiency. Weighing 7.72 pounds, it is manageable for installation without compromising on strength. With a mechanical life of 240 operations per hour and an electrical life of 120 operations per hour, the 140G-JTF4-D12 is a reliable component for maintaining the integrity of protective systems in industrial settings.