Page 238 - Sace Emax 2 Manual for design engineers

ABB | SACE Emax 2
Electrical accessories

1 - Electrical control accessories

YO-YC-YO2-YC2 : Opening The opening coils, YO and YO2, and the closing coil, YC and YC2 , allow the circuit-breaker to be controlled
(1)
(1)
and closing coil 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 100 ms).
• service with permanent power supply.

D1 C1 C11
C3 C13
D2 C2 C12
YU
YO 2 YC YO

YO-YC-YO2 for E1.2

D1 C1 C11 C21
C3 C13
D2 C2 C12 C22
YU
YO 2 YC YO YC 2

YO-YC-YO2-YC2 for E2.2 - E4.2 - E6.2
NOTE: the second opening coil YO2 is alternative to the undervoltage coil YU.

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.
Available voltages and characteristics
The tables listing the available voltages and the electrical characteristics are provided below:
Available voltages (Un) General characteristics YO-YO2 YC-YC2 (1)
24 V AC/DC Operating limits 70...110 %Un 85...110 %Un
30 V AC/DC Inrush power (Ps) 300 VA/W
48 V AC/DC Continuous power (Pc) 3.5 VA/W
60 V AC/DC Maximum opening time 35 ms -
110…120 V AC/DC Maximum closing time - 50 ms
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

(1) YC2 not available for E1.2

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236 | © 2020 ABB | 1SDH001330R1002 - ECN000134959 - Rev. A Electrical accessories | 1 - Electrical control accessories