ABB | SACE Emax 2
Electrical accessories | 1 - Electrical control accessories
73 | © 2017
ABB |
1SDH000999R0002 - ECN000058721 - Rev. B
Electrical accessories
1 - Electrical control accessories
YO-YC-YO2: Opening and
closing coil
YO
YC
YU
YO2
C12
C13
C11
C2
C3
C1
D2
D1
The opening coils, YO and YO2, and the closing coil, YC, allow the circuit-breaker to be controlled remotely.
The opening of the circuit-breaker is always possible with the circuit-breaker closed, while closing is possible
with the circuit-breaker open and the closing springs charged.
The opening and closing coils can operate in two different modes:
instantaneous service (the minimum duration of the command impulse must be 100ms).
service with permanent power supply.
IMPORTANT:
•
If the closing coil is permanently energized and the opening coil trips, after opening,
the closing coil must be momentarily de-energized so that it can be reused for the next
closing operation.
•
If instead the opening coil trips, it is necessary, after having de-energized it, to wait at
least 100 ms before operating the closing coil.
NOTE:
the second opening coil YO2 is alternative to the undervoltage coil YU.
Available voltages and characteristics
The tables listing the available voltages and the electrical characteristics are provided below:
Available voltages (Un)
24 V AC/DC
30 V AC/DC
48 V AC/DC
60 V AC/DC
110…120 V AC/DC
220…240 V AC/DC
240...250 V AC/DC
277 V AC/DC
380…400 V AC
415…440 V AC
480…500 V AC
500…550 V AC
General characteristics YO-YO2
YC
Operating limits
70%...110% Un
85%...110% Un
Inrush power (Ps)
AC= 300VA DC= 300W
Power during charge (Pc):
AC= 3.5VA DC= 3.5W
Opening time
35ms
-
Closing time
-
50ms