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Allen Bradley 140M Circuit Breakers 140MT-C-KN

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140MT-C-KN

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The 140MT-C-KN from Allen Bradley functions as a padlockable operating knob. It is compatible with multiple circuit breaker models, offering a secure and easily accessible control interface for motor protection 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 140MT-C-KN

ManufacturerAllen Bradley
Product TypePadlockable Operating Knob
Product Line140M Circuit Breakers
Part Number140MT-C-KN
UPC191326739818
ColorBlack
FunctionalityCan be locked in OFF position
Compatibility140MT-C, 140MT-D, and 140UT-D motor protection circuit breaker
Padlock Shackle Diameter4 to 6 millimeters
Number of Padlocks Used1 padlock
Knob MechanismTwist knob
Vibration ResistanceUp to 2G
Shock Resistance30G for 11 milliseconds duration
Installation/Operating Altitude2,000 meters (6,561 feet) above sea level
Recommended Operating Temperature-40°C to 85°C (-40°F to 185°F)
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The 140MT-C-KN operating knob by Allen Bradley is engineered for secure operation within the motor protection circuit breakers. The knob accommodates a padlock to secure it in the OFF position, promoting enhanced safety measures during maintenance or service. This design is compatible with the 140MT-C, 140MT-D, and 140UT-D circuit breaker models, ensuring its utility across a range of applications.

The sleek black finish is complemented by its twist mechanism, allowing for straightforward use. This knob can be secured with a padlock featuring a shackle diameter ranging from 4 to 6 millimeters, which permits the integration of security where necessary. The knob has been designed with durability in mind, capable of withstanding vibrations up to 2G and shock resistance rated at 30G for up to 11 milliseconds.

Operationally, the knob is rated for environments at altitudes up to 2,000 meters (approximately 6,561 feet), making it suitable for installations in varied geographic locations. The recommended operating temperature range is broad, from -40°C to 85°C (-40°F to 185°F), ensuring reliability in extreme conditions. Overall, the 140MT-C-KN serves as a pivotal component for enhanced control and safety in motor protection applications.