SACE EMAX 2 NEW LOW VOLTAGE POWER C I RCUI T BRE AKERS TO ANS I C37 / UL 1066 / CSA STANDARDS
9/4
— Reading information Circuit breakers
Key *
O 01...32
= Programmable signalling contacts of the EKIP protection trip unit = EKIP protection trip unit contact for synchronism control
= See the note indicated by the letter = Applications located on the mobile part of the circuit-breaker = Applications located on the fixed part of the circuit-breaker = Indicative devices and connections for control and signalling, outside the circuit-breaker = Serial interface with external bus = Electronic time-lag device of YU un- dervoltage coil, outside the circuit-breaker
A1
O SC
A3
Q = Circuit-breaker Q/1...Q/25 = Auxiliary contacts of circuit- breaker Q/26...Q/27 = Auxiliary open/close contacts used internally by the trip unit RC = RC (residual current) protection sen- sor RT1…RT3 = Temperature sensors RTC EKIP = Auxiliary ready to close contact of 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 mo- tor S43 = Switch for presetting remote/local control S51 = Trip signalling contact S75E/1…4 = Contacts for signalling circuit-
A4
BUS1
D
F1
= Time-delayed trip fuse
GZi(DBi)
= Zone selectivity input for G protection or input in “reverse” di- rection for D protection
GZo(DBo) = Zone selectivity output for G
protection or output in “reverse” di- rection for D protection = Programmable digital inputs of the EKIP protection trip unit = Electronic overcurrent protection trip unit of the types: EKIP DIP, EKIP TOUCH, EKIP LCD, EKIP HI-TOUCH , EKIP HI-LCD, EKIP G TOUCH, EKIP G LCD, EKIP G HI-TOUCH , EKIP G HI-LCD
I O1…32
K51
breaker in racked-out position (pro- vided only with withdrawable ver- sion) = Contacts for signalling circuit- breaker in racked-in position (provided only with withdrawable version)
S75I/1…5
K51/COM = Communication module K51/MEAS = Measurement module K51/SIGN = Signalling module K51/SUPPLY =Optional auxiliary supply module (110-220VAC/DC and 24-48VDC) 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
S75T/1…2 = Contact for signalling circuit-
breaker in test position (provided only with withdrawable version) = Pushbutton or contact for closing the circuit-breaker = Pushbutton or contact for immediate opening of the circuit- breaker = Pushbutton or contact for opening the circuit-breaker with time- delayed trip
SC
SO
SO1
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