Page 204 - Sace Emax 2 Catalogue

9/4 SACE EMA X 2 LOW VOLTAGE AIR CIRCUIT-BRE AKERS

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Reading information

Circuit-breakers

Key Q/1...Q/25 = Auxiliary contacts of circuit- breaker
* = See the note indicated by the letter Q/26...Q/27 = Auxiliary open/close contacts used
A1 = Applications located on the mobile internally by the trip unit
part of the circuit-breaker RC = RC (residual current) protection
A3 = Applications located on the fixed sensor
part of the circuit-breaker RT1…RT3 = Temperature sensors
A4 = Indicative devices and connections RTC EKIP = Auxiliary ready to close contact of
for control and signalling, outside circuit-breaker, used internally by
the circuit-breaker the trip unit
BUS1 = Serial interface with external bus RTC = Contact for signalling circuit-
D = Electronic time-lag device of YU breaker is ready to close
undervoltage coil, outside the S33M/1…2 = Limit contacts of spring loading
circuit-breaker motor
F1 = Time-delayed trip fuse S43 = Switch for presetting remote/local
GZi(DBi) = Zone selectivity input for G control
protection or input in “reverse” di- S51 = Trip signalling contact
rection for D protection S75E/1…4 = Contacts for signalling circuit-
GZo(DBo) = Zone selectivity output for G breaker in racked-out position
protection or output in “reverse” (provided only with withdrawable
direction for D protection version)
I O1…32 = Programmable digital inputs of the S75I/1…5 = Contacts for signalling circuit-
EKIP protection trip unit breaker in racked-in position
K51 = Electronic overcurrent protection (provided only with withdrawable
trip unit of the types: EKIP DIP, version)
EKIP TOUCH, EKIP LCD, S75T/1…2 = Contact for signalling circuit-
EKIP HI-TOUCH , EKIP HI-LCD, breaker in test position (provided
EKIP G TOUCH, EKIP G LCD, only with withdrawable version)
EKIP G HI-TOUCH , EKIP G HI-LCD SC = Pushbutton or contact for closing
K51/COM = Communication module the circuit-breaker
K51/MEAS = Measurement module SO = Pushbutton or contact for
K51/SIGN = Signalling module immediate opening of the circuit-
K51/SUPPLY = Optional auxiliary supply module breaker
(110-220VAC/DC and 24-48VDC) SO1 = Pushbutton or contact for opening
K51/SYNC = Synchronization module the circuit-breaker with time-
K51/YC = Closing control from the EKIP delayed trip
protection trip unit SR = Pushbutton or contact for
K51/YO = Opening control from the EKIP electrical resetting of S51trip
protection trip unit contact
M = Motor for loading closing springs SZi(DFi) = Input for zone selectivity for S and I
O 01...32 = Programmable signalling contacts protection or input in “direct” di-
of the EKIP protection trip unit rection for D protection
O SC = EKIP protection trip unit contact SZo(DFo) = Output for zone selectivity for S
for synchronism control and I protection or output in “di-
Q = Circuit-breaker rect” direction for D protection