Rockwell Automation Updates Motor Control Components
March 27, 2023
The Bulletin 140MT motor protection circuit breakers and motor circuit protectors provide higher short-circuit ratings than the products they replace.
The Allen-Bradley Branch motor control components have been revised by Rockwell Automation. According to the company, this move was made to update systems where components are used to turn on and off motors of all sizes while helping protect the motors from overloading during operation.
Rockwell Automation says basic across-the-line motor starters remain ubiquitous in industrial applications despite the proliferation of solid-state motor starting technologies. These components comprise motor starting contactors, motor-specific circuit breakers and motor-overload relays where, depending on the application, the motor overload functionality can be incorporated in the circuit breaker or applied as a separate component.
The Allen-Bradley E100 electronic overload relay includes increased accuracy and repeatability, a self-powered design with lower heat dissipation, and certifications to comply with many applications.
“Customers have expressed they want to spend as little time as possible dealing with basic control technology,” said Bill Meindl, business manager for industrial components at Rockwell Automation. “By using Branch Motor Control & Protection Solution products, customers can access the right motor control solution from 5-2650 Amps, all with relevant components and accessories designed and certified to work together.”
Pointing to the availability of the wide-range, energy-saving coils for Bulletin 100-E architecture-class contactors, Rockwell Automation says these coils use much less energy in operation, and cover AC and DC control circuits from 24 to 240 volts, making selection easier. Safety versions of the contactors are available, as well as NEMA-rated options. Bulletin E100 Electronic Overload Relays are now also compatible with Bulletin 100-E and 100-C Contactors to enhance systems.
All valid combinations of Branch Motor Control & Protection Solution components have been tested to UL and IEC standards for compliance to these standards using the Rockwell Automation’s online Global Short-Circuit Current Rating tool.
In addition to these updates, the Bulletin 140MT line of motor protection circuit breakers and motor circuit protectors now provides higher short-circuit ratings than the products they replace. Also, the E100/200/300 electronic overload relays now include options for EtherNet/IP integration that enables diagnostics and Logix integration.
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