Specifications

17
ArcShield Features
In combination with the standard safety features built into
every CENTERLINE 2100 MCC, choosing ArcShield provides
you additional benefits, including:
• Type 2 Accessibility for enhanced personnel
protection at the front, sides and rear of the MCC.
• Performance tested arc-resistant latches on all doors
capable of withstanding the high internal pressure
generated by an arc blast keep doors latched and
secured to the MCC during an arcing fault.
• Manual or automatic shutters help to protect
against potential electrical shock hazards from
unused plug-in stab openings.
• Copper vertical ground bus and heavy duty ground
stab on plug-in units provides an effective path for
ground fault currents which helps to minimize fault
clearing times of overcurrent protective devices.
• Insulating covers on horizontal bus closing plates
help prevent ‘burn through’ which may result from
arcing faults in the horizontal bus compartment.
• Vented units with arc-resistant baffles to allow for a
wider range of MCC equipment for NEMA Type 1
Enclosures while maintaining Type 2 Accessibility
(ArcShield with device-limited arc-resistant rating
only).
• Pressure relief system designed to exhaust gases
through the top of the enclosure, away from
personnel
(ArcShield with 100 ms arc duration rating only).
CENTERLINE 2100 MCCs with ArcShield can also be
supplemented with IntelliCENTER technology. The remote
maintenance and troubleshooting capabilities of
IntelliCENTER technology keeps you out of the flash
boundary and safe from electrical and arc flash hazards.
You can perform the following procedures with the unit
doors closed:
• Overload detection (monitor warnings and trips)
• Change overload relay setting (full load amperes
and trip class)
• Measure and monitor phase currents
• Measure baseline motor currents
• Ground fault detection (monitor warnings and trips)
• Monitor motor thermistor
• Time to trip and time to reset
• Reset overload relays
• Event history
• Verify control power
• Verify starter operation
Manual or
automatic shutters
Insulating covers
on horizontal bus
closing plate
Horizontal and vertical
ground bus system
Pressure relief system
(100 ms arc duration rating only)
Arc-resistant latches
on all doors
Arc-resistant baffles
(for device limited arc
resistant rating only)
Arc-resistant rating label
ArcShield 100 ms arc duration rating only
Vertical angles at each end of MCC
Polycarbonate baffles at each end of
lineup
15 in. or 20 in. deep sections
20 in. deep sections required for 100 ms
arc duration rating
ArcShield 100 ms arc duration rating only
Reinforced backplates
Bolted bown unit support pans
Vertical wreway baffle
Reinforced door hinges