SACE ® TMAX XT ® UL/CSA LOW VOLTAGE MOLDED CASE CIRCUIT-BREAKERS UL489 AND CSA C22.2 STANDARDS
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— Reading information Information on how to read the diagrams
Key XT7-XT7M *
Q/1...25 = Open/close auxiliary contacts of circuit-breaker Q/26-27 = Open/close auxiliary contacts used internally by protection release RC = RC (residual current) protection sensor RTC EKIP= Ready to close auxiliary contact of circuit-breaker, used internally by protection release RTC = Contact for signaling circuit-breaker is ready to close S4/1-2 = Early auxiliary contacts (AUE1-2) S33M/1-2 = Limit contacts of spring loading motor S43 = Switch for presetting remote/local control S51 = Contact for signaling circuit-breaker open due to tripping of overcurrent protection release = Contact for signaling circuit-breaker open due to tripping of opening coil and of undervoltage coil S75E/1-2 = Contacts for signaling circuit-breaker in racked-out position (only provided with withdrawable circuit-breakers) S75l/1-2-5 = Contacts for signaling circuit-breaker in racked-in position (only provided with withdrawable circuit-breakers) S75T/1-2 = Contact for signaling circuit-breaker in test position (only provided with with drawable circuit-breakers) SC = Pushbutton or contact for closing circuit-breaker S0 = Pushbutton or contact for immediate opening of circuit-breaker S01 S52
= See note indicated by the letter
A1
= Applications located on the moving part of the circuit-breaker = Applications located on the fixed part of the circuit-breaker = Indicative devices and connections for control and signaling, outside the circuit-breaker = Signaling unit type Ekip Signalling 10K = Metering unit type Ekip Multimeter = Serial interface with external bus
A3
A4
A13 A15
BUS1 BUS2
= Redundant serial interface with external bus LINK BUS = Interface with the external Link bus D = Electronic time-lag device of YU under voltage coil, outside the circuit-breaker 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 | 11...32 = Programmable digital inputs | 41...43 51...53 = Analogue inputs from temperature sensor | 44-54 = Analogue inputs from 4-20mA sensor K51 = Ekip type electronic release for overcur rent protection K51/COM = Communication module K51/MEAS = Measurement module K51/SIGN = Signaling module K51/SUPPLY = Auxiliary supply module (110-220VAC/ DC and 24-48VDC) K51/SYNC = Synchronization module K51/TEMP = Temperature monitoring module K51/YC = Closing command from EKIP protection release K51/YO = Opening command from EKIP protection release M = Motor for loading closing springs O 11...32 = Programmable signaling contacts 0 SC = Contact for synchronism control Q = Circuit-breaker
= Pushbutton or contact for opening circuit-breaker with time-delayed trip = Pushbutton or contact for electrical resetting of S51 trip contact
SR
SY = Contact for signaling circuit-breaker open due to tripping of overcurrent protection release and of Y0, Y02, YU coils (tripped position) SZi(DFi) = Zone selectivity input for S protection or input in "forward" direction for S protection
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