MCC add-on to protect against electrical hazards

SecureConnect, an optional safety feature for the Centerline 2100, from Rockwell Automation, allows operators to disconnect power from an individual MCC plug-in unit without entering the arc flash boundary.


Users of the Allen-Bradley Centerline 2100 motor control center (MCC) from Rockwell Automation can help reduce workers’ exposure to live voltage with SecureConnect. This optional safety feature allows operators to disconnect the power from an individual MCC plug-in unit without opening the enclosure door or entering the arc flash boundary. SecureConnect enables personnel to disengage an individual MCC unit from the power source before opening the door to perform maintenance or troubleshooting, which can be done at the unit or remotely.

Confirmation of complete power removal process is provided by SecureConnect’s multipoint validation system, which notifies operators when the unit’s power stabs are entirely withdrawn from the vertical bus, further decreasing the risk of hazardous electrical incidents. In addition, SecureConnect helps companies get their processes back up and running faster by reducing the need to obtain hot-work permits when servicing equipment. Because SecureConnect isolates a single unit from the power source, the remaining MCC units can operate without interruption.

SecureConnect addresses safety at the unit level, adding a third tier for low-voltage MCCs. At the component level, Allen-Bradley IntelliCenter technology helps users perform remote monitoring for troubleshooting their MCCs, all while outside the arc-flash boundary. ArcShield from Rockwell Automation, introduced in 2009, helps reduce flash hazards by providing protection against internal electrical arc faults that could occur without warning. 

Rockwell Automation

- Edited by Chris Vavra, Control Engineering, 

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