Yu: Under-Voltage Coil - ABB SACE Emax 2 Series Installation, Operation And Maintenance Instructions

YU: under-voltage coil

D1
D2
YU
YO2
227 | © 2013 ABB | 1SDH001000R0002 - L7804
The under-voltage coil YU controls the value of the voltage in the circuit to which it is connected.
The coil opens the circuit-breaker when:
• the power supply voltage of the coil drops to a value in the range 35%... 70% Un
The under-voltage coil YU can in addition be used for the following purposes:
• Release the circuit-breaker remotely using push-buttons of the normally closed type.
• Activate the lock when the circuit-breaker is closed (the closing of the circuit-breaker is
allowed only with the under-voltage coil energized).
NOTE: The power supply of the coil must drawn on the supply side of the circuit-
breaker or from an independent source.
The tables listing the available voltages and the electrical characteristics are provided below:
Available voltages (Un)
24V AC/DC
30V AC/DC
48V AC/DC
60V AC/DC
110V...120V AC/DC
220V...240V AC/DC
240V...250V AC/DC
380V...400V AC
415V...440V AC
480V...500V AC
YU: Connections
Further information is available on page 156, or on the site http://www.abb.com/abblibrary/
DownloadCenter/, where the wiring diagram is available 1SDM000091R0001.
Diagram 73
Information on the assembly is available from the web site http://www.abb.com/abblibrary/
DownloadCenter/, in particular with the kit sheet 1SDH001000R0504.
General characteristics
Operating limits (Standards
IEC60947-2)
Inrush power (Ps)
Continuous power (Pc)
Opening time
73
+
~
A4
SO
X
D1
XV
D1
A1
XB5 1
YU
XB5 2
XV
D2
X D2
-
A4
~
Electrical accessories | 1 - Electrical Control accessories
ABB | SACE Emax 2
YU
85%...110% Un
AC= 300VA DC= 300W
AC= 3.5VA DC= 3.5W
50ms