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

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8.1.5. Alarm contacts
ARC-EM/2.0
Number of contacts 2 normally open contacts
(relay A1&SF*)
1 normally closed contact (SF*)
Rated voltage 250 V ac/dc
Continuous withstand capacity 5 A
Make and carry for 0.5s 10 A
Make and carry for 3s 8 A
Breaking capacity, dc(L/R=40 ms)
At 48 V dc: 1 A
At 110 V dc: 0.25 A
At 220 V dc: 0.05 A
Relay material AgNi 90/10
Terminal: Maximum cross-section area of wire
- Phoenix MVSTBW or similar 2.5 mm² (13-14 AWG)
*) Relay A1 = Trip Alarm
Relay SF = Self-supervision
8.1.6. Communication bus interface
Number of ports 2 in the back plate (ARC-EM/2.0)
2 in the front panel (I/O units)
Electrical connection RJ 45
Max. number of used units 16 I/O units
3 master units
Auxiliary voltage supply to I/O units Floating 24 V dc
Communication RS485 (15 kV) information / self-supervision
Light/current signal 4 arc protection zones
1 overcurrent zone
8.1.7. Local serial communication port
ARC-EM/2.0
Number of ports 1 pc. in front panel
Electrical connection RS 232
Data transfer rate 9600 kb/s (software update)