Master Unit Arc-Em/2.0 - Eaton ARCON 2.0 Series Operation And Configuration Instructions. Technical Description

1.1.1. Master unit ARC-EM/2.0

Figure: The master unit ARC-EM/2.0
The master unit ARC-EM/2.0 contains the following functions:
• 3-phase overcurrent and arc stage
• Alternatively, 2-phase overcurrent, earth-fault and arc stage
• Circuit breaker failure protection stage
(CBFP - not relevant for applications with quenching device)
• Optional trip criteria (I>&L>, I0>&L> or L>)
• Two mutually independent tripping groups
• Four output trip relays
• Four protection zones
• BI/O bus for light and overcurrent information
• Status, fault and trip indications
• Accommodates up to 16 I/O units
• System self-supervision
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