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General| Brand | Allen-Bradley |
|---|---|
| Model | CENTERLINE 2100 |
| Category | Control Unit |
| Language | English |
Explains ArcShield rating labels and their importance for arc-resistant MCCs.
Discusses factors to consider when planning the MCC installation location, such as conduits, busways, and ambient temperature.
Specifies the required clearance above the MCC top plate for proper operation of the pressure relief venting system.
Details methods for anchoring MCCs to the foundation using anchor bolts for seismic stability.
Explains seismic qualification and anchoring requirements for MCC lineups to withstand earthquakes per building codes.
Details procedures for installing bus splice kits to connect new MCC sections and the main horizontal bus.
Outlines steps for adding new MCC sections to existing lineups, requiring identification of the existing MCC series.
Lists additional requirements for MCCs with arc-resistant ratings, including baffles and insulation.
Emphasizes supporting incoming and outgoing cables to withstand short-circuit forces, following codes.
Provides step-by-step instructions for removing a SecureConnect unit from an MCC section.
Details the procedure for removing a plug-in unit with a vertical operating handle from an MCC.
Provides steps to remove a plug-in unit with a horizontal operating handle from an MCC section.
Details the installation of a 24V DC two-branch redundant power unit for IntelliCENTER EtherNet/IP MCCs.
Explains the origin and reinforcement of flash protection marking requirements by NFPA 70E and NEC.
Details the NEC requirement for field marking equipment to warn qualified persons of potential arc flash hazards.
Clarifies that flash protection marking is a field requirement based on site-specific calculations and intended to identify hazards.
Explains how to defeat the unit door interlock to open the door when the operating handle is in the ON/I position.
Details how to energize a unit with the door open using a defeater lever for vertical or horizontal handles.
Describes how to lock small, medium, and large operator handles in the OFF/O position using padlocks.
Explains how to lock horizontal operating handles in the OFF/O position using the open slotted area.
Details steps to lock operator handles in the ON/I position, including drilling holes.
Explains how unit interlocks prevent unit removal/insertion when the handle is ON, and how they can be used for lockout.
Defines a 'qualified person' and outlines qualifications for conducting pre-energizing checks.
Lists steps for pre-energizing checks, including removing shipping blocks, inspecting for damage, and verifying installation.
Highlights that arc-resistant MCCs require specific components to maintain their rating and these must be in place.
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