ABB SACE Emax E4.2 - Page 179

ABB | SACE Emax 2
Accessories | 2 - Wiring diagrams173 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A
Continued from the previous page
Symbol Description
* See the note indicated by the letter
A1 Applications located on the mobile part of the circuit-breaker
A3 Applications located on the fixed part of the circuit-breaker
A4
Indicative device and connections for control and signalling, outside the
circuit-breaker
BUS1 Serial interface with external bus
D Electronic time-lag device of YU undervoltage coil, outside the circuit-breaker
F1 Time-delayed trip fuse
GZi(DBi) Zone Selectivity input for G protection or input in “reverse” direction for D protection
GZo(DBo)
Zone Selectivity output for G protection or output in “reverse” direction for D
protection
I 01…32 Up to 10 programmable digital inputs of the Ekip trip unit
K51 Overcurrent protection solid-state trip unit
K51 / COM Communication module
K51 / MEAS Measurement module
K51 / SIGN Signalling module
K51 / SUPPLY Optional auxiliary power supply module (24-48Vdc and 110-220Vac / dc)
K51 / SYNC Synchronization module
K51 / YC Closing control from the Ekip protection trip unit
K51 / YO Opening control from the Ekip protection trip unit
M Motor for loading closing springs
O 01...32 Up to 10 programmable digital inputs of the Ekip trip unit
O SC Contact for synchronism control
Q Circuit-breaker
Q / 1...Q / 27 Auxiliary open/closed contacts of the circuit-breaker
Rc Rc Toroid
RTC EKIP Auxiliary ready to close contact of the circuit-breaker, used internally by the trip unit
RTC Contact for signalling circuit-breaker is ready to close
S33M / 1…2 Limit contacts of spring loading motor
S43 Switch for setting remote/local control
S51 Trip signalling contact
S75E / 1…4
Contacts for signalling circuit-breaker in disconnected position
(only with withdrawable circuit-breakers)
S75I / 1…5
Contacts for signalling circuit-breaker in connected position
(only with withdrawable circuit-breakers)
S75T / 1…2
Contacts for signalling circuit-breaker in test position
(only with withdrawable circuit-breakers)
SC Pushbutton or contact for closing the circuit-breaker
SO Pushbutton or contact for immediate opening of the circuit-breaker
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 “direct” direction for D
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
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