Eaton ARCON 2.0 Series, Operation And Configuration Instructions. Technical Description

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7.6.2. ARC-EP10-2/2.0
ARC-EP10-2/2.0 is primary design for selective feeder trip applications. The unit comprises 3
electromechanical trip normally open contacts and one trip alarm change over contact.
The unit has 10 ARC sensor inputs. Three sensors (of the ten) inputs are dedicated, and are
controlling their own trip relay. The unit is ideal for selective trip of cable compartment in case
of an ARC fault. ARC-EP10-2/2.0 can selectively handle 3 feeders. The rest of the sensors
can then supervise the busbar and breaker compartments and will operate in the zone selec-
ted by the unit address switches.
Figure: Arc scheme with I/O units
Connections
The ARC-EP10-2/2.0 arc protection unit has 10 sensor channel inputs of which the fi rst three
sensors (1, 2 and 3) have dedicated trip outputs (T1, T2 and T3). Sensors 4 to 10 are part of
the sensors scheme of the ARC-EM/2.0 and are operating in the zone selected by the dips-
witch. The unit is receiving I> (over-current) information from ARC-EC1/2.0 or ARC-EM/2.0
units through the com connection. In opposite to the ARC-EP10/2.0, ARC-EL3/2.0 and ARC-
EC1/2.0 the ARC-EP10-2/2.0 unit has no BI or BO connection. Also the RS485 and CAN
connection at X2 has been removed and replaced by the DO connections.