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Allen Bradley 140M Circuit Breakers 140MT-D9T-B16

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140MT-D9T-B16

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The 140MT-D9T-B16, manufactured by Allen Bradley, is a motor protection circuit breaker designed for effective safeguarding of motor systems. This device operates at a rated voltage of 690 VAC and is suitable for 50/60 Hz applications.

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Ships from Raleigh, NC
2 Year DO Supply Warranty
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 of our products come with DO Supply's 2-year warranty.
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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 140MT-D9T-B16

ManufacturerAllen Bradley
Product TypeMotor Protection Circuit Breaker
Product Line140M Circuit Breakers
Part Number140MT-D9T-B16
Weight0.81 lbs (0.37 kg)
UPC191326562515
Frequency50/60 Hz
Poles3-pole
Trip ClassClass 10
Trip TypeThermal-magnetic
Current Range1–1.6 A
Magnetic TripFixed, 18–22×Ie
MountingDIN-rail
Terminal TypeScrew terminals
Adjustment MethodDial-set
ConstructionOpen style
Rated Voltage690 VAC
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The 140MT-D9T-B16 is a robust motor protection circuit breaker from Allen Bradley’s 140M Circuit Breakers series. Rated for a voltage of 690 VAC, this unit is designed to operate efficiently at both 50 and 60 Hz frequencies. It has a 3-pole configuration suitable for various motor protections. This circuit breaker is classified as Class 10 for trip classification, ensuring timely and effective motor protection under overload conditions.

It supports a current range from 1 to 1.6 A, making it versatile for different motor applications. The thermal-magnetic trip mechanism provides dual-layer protection against overloads and short circuits, while the magnetic trip feature is fixed between 18 to 22 times the rated current, ensuring reliability in various scenarios.

For installation, the device is adaptable to DIN rail mounting, and the use of screw terminals ensures secure and reliable connections. Users can make adjustments easily via a dial-set method, allowing for straightforward customization of settings based on application needs. The open style construction of the breaker supports effective heat dissipation, which is crucial for maintaining optimal performance during operation. Overall, the 140MT-D9T-B16 provides essential protective features for motors, enhancing their durability and operational efficiency.