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Allen Bradley 140U MCB 140U-JD3D3-D25

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140U-JD3D3-D25

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The 140U-JD3D3-D25 is a robust molded case circuit breaker from Allen Bradley, specifically designed with a J-frame size. It is rated for a maximum current of 250 A and operates at 600V AC for alternating current and 250 VDC for direct current 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 140U-JD3D3-D25

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140U MCB
Part Number140U-JD3D3-D25
Weight32.00 lbs (14.51 kg)
Frame SizeJ-Frame
Number of Poles3 Poles
Current Rating250 A
Rated Voltage (AC)600V AC
Rated Voltage (DC)250 VDC
Interrupting Rating at 480 V35 kA
Interrupting Rating at 240 V65 kA
Protection TypeThermal-Magnetic
Thermal Trip ElementFixed Thermal
Magnetic Trip ElementAdjustable Magnetic
Mounting StylePanel / DIN Rail Mount
Terminal TypeLoad Side Lugs
Minimum Frequency50 Hz
Maximum Frequency60 Hz
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The Allen Bradley 140U-JD3D3-D25 serves as a molded case circuit breaker ideal for a variety of applications. Designed in a J-frame format, it is rated for a maximum output current of 250 A, supporting system reliability. This circuit breaker can be used for both AC and DC applications, operating at 600V AC and 250V DC, respectively. It is built to manage significant electrical loads and features a thermal-magnetic protection type, ensuring safety against overloads and short circuits.

The breaker incorporates a fixed thermal trip element to protect against prolonged overloads, while an adjustable magnetic trip element provides customizable settings for different applications. This feature enhances overall performance and adaptability in various environments. With an interrupting capacity of 35 kA at 480 V and an even higher rating of 65 kA at 240 V, this circuit breaker can effectively handle short circuit currents, ensuring the longevity of electrical systems.

Installation is straightforward, as the 140U-JD3D3-D25 can be mounted either on a panel or a DIN rail, allowing flexible placement options within control cabinets. Load side lugs facilitate secure connections, making it easy to integrate into existing setups. This device operates efficiently within a frequency range of 50 Hz to 60 Hz, further extending its versatility. Overall, the Allen Bradley 140U-JD3D3-D25 is a reliable circuit protection solution suitable for demanding electrical environments.