14
Design and specifications are subject to change without notice
01/2008
4. Electrical circuits
4.1 Controls layout
Closing solenoid drive
Shunt trip / Zero voltage release
ED coil
OCT device
HS 1...HS 10
OCT indicator
Arc chute-indicator
Description
Designation
X2
1.Connector: Auxiliary- and control circuits
X3
2.Connector: Auxiliary- and control circuits
X4
3.Connector: Auxiliary contacts HS1...HS5
X5
4.Connector: Auxiliary contacts HS6...HS10
X6
5.Connector: Current measure system SEL
X10
Control board: Voltage converter
X11
Control board: Interface for external DC 24V supply (OPTION)
X12
Control board: SU control unit
X13
Control board: Shunt trip control unit
X14, X15
Control board: Zero voltage release (X15: with modified UVR)
X16
Control board: NEKO control unit for ED coil control
X17
Control board: Current measure system SEL
Fig. 20 Control system’s layout