Page 334 - SACE Tmax XT - Technical Catalogue

3/4 SACE TMAX XT LOW VOLTAGE MOLDED CASE CIRCUIT-BREAKERS

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Reading information

Information on how to read the diagrams

State of operation shown K = Motor starting contactor
The diagrams are shown in the following conditions: K51 = Ekip type electronic relay for
• fixed version circuit-breaker, open; overcurrent protection
• withdrawable or plug-in version circuit-breaker, K51/CI = Motor starting contactor operator
open and connected; module
• contactor for starting the motor open; K51/COM = Communication module
• circuits de-energised; K51/MEAS= Measurement module
• trip units not tripped; K51/SIGN = Signaling module
• motor operator with springs charged. K51/SUPPLY = Auxiliary supply module
(110-24OVAC/DC and 24-48VDC)
Key XT1...XT4 K51/SYNC = Synchronizing module
* = See note indicated by the letter K51/TEMP = Temperature monitoring module
A12 = Ekip Com type interface unit K87 = Residual current relay
A13 = Ekip Signaling 10K type signaling unit M = Motor with energizing in series for
A14 = MOE-E type stored energy motor circuit-breaker opening and closing
operator actuating unit (Fig. 21)
A15 = Ekip Multimeter type measurement M = Motor for opening circuit-breaker and
unit loading the closing springs (Fig. 22-
A16 = Ekip Micro Module l/O type interface 54-55-56-57)
unit M1 = Three-phase asynchronous motor
A17 = MOE type stored energy motor 0 11...32 = Programmable signaling contacts
operator actuating unit OCI = Contact for motor starting contactor
BUS1 = Serial interface with external bus operating mechanism
BUS2 = Redundant serial interface with external 0 SC = Synchronism monitoring contact
bus Q = Main circuit-breaker
LINK BUS = Interface with external Link bus Q/O...7 = Auxiliary contacts of the circuit-
D 2 Electronic time-delay device for breaker open/closed
undervoltage release coil YU, outside R-R1 = Resistor
circuit-breaker (only for voltage up to R2 = Pt100 temperature sensor of motor
250 V) 81 = Contact controlled by the motor
H2 = Signaling lamp for stored energy motor operator cam
operator blocked 82 = Contact controlled by the key lock of
I 11...32 = Programmable digital inputs the direct action motor operator
| 41...43 51...53 = Analog inputs from temperature 83/1-2 = Contacts operated by Auto/Manual
sensor selector switch and by key lock of the
| 44-54 = Analog inputs from 4-20mA sensor stored energy motor operator
| Pt1OO = Analog input from PtiOO temperature S4 = Contact operated by direct action
sensor of motor motor operator cam
I reset = Digital input for resetting tripped mo S4/1-2 = Early auxiliary contacts operated by
tor starting contactor operating unit circuit-breaker mounted crank handle
J... = Connectors for auxiliary circuits of 851 = Contact for signaling circuit-breaker
withdrawable circuit-breaker. open due to tripped thermomagnetic
Withdrawal of connectors occurs at overcurrent protection release or
the same time as that of circuit- electronic relay
breaker