Arc-Resistant JK
Motor Control Center
The Arc-Resistant JK (AR-JK) Motor Control Center is designed to increase safety, reliability, and uptime. Utilizing advanced technology, high quality materials, and structural design, the AR-JK effectively mitigates the risks and costs associated with an arc fault by working to contain and divert arc-related explosions.
| Type 2B Accessibility | Type 2B accessibility offers increased protection around the entire perimeter of the AR-JK, including instances when the low voltage compartment is open and under maintenance. |
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Insulated Main Bus |
The insulated main bus prevents inadvertent contact with bus bars and isolates them to limit the spread of an arc blast. |
| Modular, Pre-Assembled Exhaust Plenum | The exhaust plenum channels fire, smoke, and debris from an arc fault out and away from personnel around the perimeter of the AR-JK MCC. The modular design enables the plenum to be installed facing the left, right or back depending on user requirements. |
| Advanced Pressure Relief System | The AR-JK uses an advanced pressure relief system designed to redirect arc blasts safely. An internal venting system and ventilation flaps are utilized to manage internal pressure. |
| Reinforced Structural Design | Reinforced doors, sides and end covers increase the AR-JK’s ability to withstand the explosion of an arc fault safely. |
| Bolted Pressure Isolation Switch | The isolation switch is designed with a mechanical interlock between the contactor and the isolation switch that prevents opening or closing the isolation switch unless the main contactor is opened. |
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