ABB SACE Emax 2 Installation, Operation And Maintenance Instructions For The Installer And The User page 62

60 | © 2017 ABB | 1SDH000999R0002 - ECN000058721 - Rev. B
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SO1 Pushbutton or contact for opening the circuit-breaker with time-delayed trip
SR Pushbutton or contact for electrical resetting of S51 trip contact
SZi(DFi) Input for Zone Selectivity for S protection or input in "inverse" direction for S protection
SZo(DFo) Output for Zone Selectivity for S protection or output in "direct" direction for D protection
TI / L1 Current transformer phase L1
TI / L2 Current transformer phase L2
TI / L3 Current transformer phase L3
TI / N Current transformer on neutral
TU1...TU2 Insulation voltage transformer (outside circuit-breaker)
Uaux Auxiliary supply voltage
UI / L1 Current sensor phase L1
UI / L2 Current sensor phase L2
UI / L3 Current sensor phase L3
UI / N Current sensor on neutral
UI / O S.G.R. sensor
W2 Serial interface with internal bus (Local Bus)
W9...W13 RJ45 connector for communication modules
W9R...W11R RJ45 connector for redundant communication modules
X Delivery connector for auxiliary circuits for withdrawable version of circuit-breaker
XB1...XB7 Connectors for circuit-breaker applications
XF Delivery terminal board for position contacts of withdrawable version of circuit-breaker
XF1...XF2 Contact of the Ekip protection trip unit for activation of the fans
XK1...XK3 Connectors for auxiliary circuits of the Ekip protection trip unit
XK7 Connector for auxiliary circuits of communication modules
XV Delivery terminal board for auxiliary circuits of fixed version circuit-breaker
YC2 Second closing coil
YO Opening coil
YO1 Opening coil for overcurrent
YO2 Second opening coil
YR Coil for electrical resetting of trip contact S51
YU Undervoltage coil
ABB | SACE Emax 2
Continued on the next page
Accessories | 2 - Circuit diagrams